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Pastrana C, Guerreiro JRL, Elumalai M, Carpena-Torres C, Crooke A, Carracedo G, Prado M, Huete-Toral F. Dual-Mode Gold Nanoparticle-Based Method for Early Detection of Acanthamoeba (article) International Journal of Molecular Sciences , 2022. |
Joana Carvalho, Andrey Ipatov, Laura Rodriguez-Lorenzo, Alejandro Garrido-Maestu, Sarah Azinheiro, Begoña Espiña, Jorge Barros-Velázquez, Marta Prado Microchemical Journal , 2022. |
Foteini Roumani, Jorge Barros-Velázquez, Alejandro Garrido-Maestu, Marta Prado Food Control , 2022. |
Azinheiro, S., Roumani, F., Prado, M. , Garrido-Maetsu, A. Food Anal. Methods (2022) , 2022. |
Agnes Purwidyantri, Andrey Ipatov, Telma Domingues, Jérôme Borme, Marco Martins, Pedro Alpuim, Marta Prado Programmable graphene-based microfluidic sensor for DNA detection (article) Sensors and Actuators B: Chemical , 2022. |
Colmiais, I; Borme, Jerome; Alpuim, Pedro; Mendes, P. M. Graphene LC oscillator for biosensing applications (proceedings) Conference on Design of Circuits and Integrated Systems DCIS Conference on Design of Circuits and Integrated Systems DCIS , 2022. |
Martin Lopez-Garcia Versatile chip-based nanoscopy becomes ready for histopathology assessment (article) LIGHT-SCIENCE & APPLICATIONS , 2022. |
Cátia Vieira Rocha, Victor Gonçalves, Milene Costa da Silva, Manuel Bañobre-López andJuan Gallo PLGA-Based Composites for Various Biomedical Applications (article) INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES , 2022. |
João Brito, João Restivo, Juliana P. S. Sousa, Natalia C. M. Spera, D. S. Falcão, Amadeu Rocha, A. M. F. R. Pinto, Manuel Fernando R. Pereira and Olívia Salomé G. P. Soares Implementation of Transition Metal Phosphides as Pt-Free Catalysts for PEM Water Electrolysis (article) ENERGIES , 2022. |
Mónica Cerqueira, Efres Belmonte-Reche, Juan Gallo, Fátima Baltazar, Manuel Bañobre-López Magnetic Solid Nanoparticles and Their Counterparts: Recent Advances towards Cancer Theranostics (article) PHARMACEUTICS , 2022. |
Anusha, Aninamol Ani, P. Poornesh, Albin Antony, Bhaghyesh, Igor V. Shchetinin, K. K. Nagaraja, Saikat Chattopadhyay and K. B. Vinayakumar Impact of Ag on the Limit of Detection towards NH3-Sensing in Spray-Coated WO3 Thin-Films (article) SENSORS , 2022. |
Chih-Hsien Hsu, Akhilesh Kumar Gupta, Agnes Purwidyantri, Briliant Adhi Prabowo, Ching-Hsiang Chen, Chi-Cheng Chuang, Ya-Chung Tian, Yu-Jen Lu and Chao-Sung Lai Sensing Alzheimer's Disease Utilizing Au Electrode by Controlling Nanorestructuring (article) CHEMOSENSORS , 2022. |
José R. M. Barbosa, Juliana P. S. Sousa, João Restivo, Manuel F. R. Pereira and Olívia S. G. P. Soares Palladium Impregnation on Electrospun Carbon Fibers for Catalytic Reduction of Bromate in Water (article) PROCESSES , 2022. |
Katerina Nikolaidou; Hugo M. Oliveira; Susana Cardoso; Paulo P. Freitas; Virginia Chu; João Pedro Conde Monolithic Integration of Multi-Spectral Optical Interference Filter Array on Thin Film Amorphous Silicon Photodiodes (article) IEEE SENSORS JOURNAL , 2022. |
Shengyao Chen , Shu Wanga, Cong Wang, Zhongchang Wang, Qian Liu Latest advance on seamless metal-semiconductor contact with ultralow barrier in 2D-material-based devices (article) NANOTODAY , 2022. |
Rui Soares Barbosa, T. Douce, Pierre-Emmanuel Emeriau, E. Kashefi, Shane Mansfield Continuous-Variable Nonlocality and Contextuality (article) COMMUNICATIONS IN MATHEMATICAL PHYSICS , 2022. |
Mariana B. S. Felgueiras , João Restivo, Juliana P. S. Sousa, Manuel F. R. Pereira and Olívia S. G. P. Soares Copper Supported on Mesoporous Structured Catalysts for NO Reduction (article) CATALYSTS , 2022. |
Ricardo M R Adão, Tiago L Alves, Christian Maibohm, Bruno Romeira, Jana B Nieder Two-photon polymerization simulation and fabrication of 3D microprinted suspended waveguides for on-chip optical interconnects (article) OPTICS EXPRESS , 2022. |
C Milho, S Sillankorva Implication of a gene deletion on a Salmonella Enteritidis phage growth parameters (article) VIRUS RESEARCH , 2022. |
Foteini Roumani, Cristina Rodrigues, Jorge Barros-Velázquez, Alejandro Garrido-Maestu & Marta Prado Development of a Panfungal Recombinase Polymerase Amplification (RPA) Method Coupled with Lateral Flow Strips for the Detection of Spoilage Fungi (article) FOOD ANALYTICAL METHODS , 2022. |
Lena Du, Zhongchang Wang & Guozhong Zhao Novel intelligent devices: Two-dimensional materials based memristors (article) FRONTIERS OF PHYSICS , 2022. |
Julio Vacacela, Anna-Lisa Schaap-Johansen, Patricia Manikova, Paolo Marcatili, Marta Prado, Yi Sun, Jon Ashley The Protein-Templated Synthesis of Enzyme-Generated Aptamers (article) ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2022. |
A. T. Costa, N. M. R. Peres Enhancing the hybridization of plasmons in graphene with 2D superconductor collective modes (article) JOURNAL OF PHYSICS-CONDENSED MATTER , 2022. |
Sebastian Calderon V, Rafael V. Ferreira, Deepyanti Taneja, RT Jayanth, Langyan Zhou, Ricardo M. Ribeiro, Deji Akinwande, and Paulo J. Ferreira Atomic Electrostatic Maps of Point Defects in MoS2 (article) NANO LETTERS , 2022. |
Maria Daniela Silva, António Lima, Nuno Marçal, Luís Dias, Miguel Gama, Sanna Sillankorva Identification of the Bacterial Pathogens in Children with Otitis Media: A Study in the Northwestern Portuguese District of Braga (article) MICROORGANISMS , 2022. |
Rúben F Santos, Bruno M C Oliveira, Liliane C G Savaris, Paulo J Ferreira, Manuel F Vieira Seedless Cu Electroplating on Ru-W Thin Films for Metallisation of Advanced Interconnects (article) INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES , 2022. |
R. Silva-Carvalho, T. Leão, A. I. Bourbon, C. Gonçalves, L. M. Pastrana, P. Parpot, I. Amorim, A. M. Tomás and F. M. Gama Hyaluronic acid-amphotericin B nanocomplexes: a promising anti-leishmanial drug delivery system (article) BIOMATERIALS SCIENCE , 2022. |
Miguel A. Castillo, William P. Wardley, and Martin Lopez-Garcia ACS PHOTONICS , 2022. |
Lorena García-Hevia, Íñigo Casafont, Jessica Oliveira, Nuria Terán, Mónica L.Fanarraga, Juan Gallo, Manuel Bañobre-López Bioactive Materials , 2022. |
Alejandro Garrido-Maestu, Marta Prado COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY , 2022. |
Xiaojuan Gong, Jiapeng Liu, Jianwei Teng, Xianjue Ye, Zhongchang Wang, Ruilin Laia Yunping Li Context Sensitive Links 1 de 1 Particle size dependent Ag precipitation at different temperature and the resultant oxidation behavior of Cu-5Ag powders (article) ADVANCED POWDER TECHNOLOGY , 2022. |
Briliant Adhi Prabowo, Elisabete Fernandes, Paulo Freitas A pump-free microfluidic device for fast magnetic labeling of ischemic stroke biomarkers (article) ANALYTICAL AND BIOANALYTICAL CHEMISTRY , 2022. |
Vanesa Romero, Isela Lavilla, Alicia Álvarez, Carlos Bendicho, Begoña Espiña, Laura M Salonen ANALYTICA CHIMICA ACTA , 2022. |
Jessica Caldwell, Patricia Taladriz-Blanco, Roman Lehnera, Andriy Lubskyy, Roberto Diego Ortuso, Barbara Rothen-Rutishauser, Alke Petri-Finkad The micro-, submicron-, and nanoplastic hunt: A review of detection methods for plastic particles (article) Chemosphere , 2022. |
R. Ortiz, J. C. Sancho-García, and J. Fernández-Rossier Frustrated magnetic interactions in a cyclacene crystal (article) PHYSICAL REVIEW MATERIALS , 2022. |
Sarah Azinheiro, Joana Carvalho, Pablo Fuciños, Lorenzo Pastrana, Marta Prado, Alejandro Garrido-Maestu LWT , 2022. |
Ricardo Gómez-García, Ana A. Vilas-Boas, Ana Oliveira, Manuela Amorim, José A. Teixeira, Lorenzo Pastrana, Maria Manuela Pintado, Débora A. Campos Foods , 2022. |
Antonia F. J. Uchoa, Camila P. do Valle, Denise R. Moreira, Manuel Bañobre-López, Juan Gallo, Francisco S. Dias, Michael W. Anderson & Nágila M. P. S. Ricardo Synthesis of a KIT-6 mesoporous sulfonic acid catalyst to produce biodiesel from cashew nut oil (article) Brazilian Journal of Chemical Engineering (2022) , 2022. |
Iranmehr, Ensieh and Ferreira, Ricardo and Bohnert, Tim and Freitas, Paulo TechRxiv , 2021. |
Jenkins, Alex S. and Benetti, Luana and Martins, Leandro and Alvarez, Lara San Emeterio and Ferreira, Ricardo Spintronic wireless sensor networks (article) IEEE Transactions on Magnetics , 2021. |
Nathan Leroux and Alice Mizrahi and Danijela Markovic and Dedalo Sanz-Hernandez and Juan Trastoy and Paolo Bortolotti and Leandro Martins and Alex Jenkins and Ricardo Ferreira and Julie Grollier Neuromorphic Computing and Engineering IOP Publishing , 2021. |
Nathan Leroux and Alice Mizrahi and Danijela Markovic and Dedalo Sanz-Hernandez and Juan Trastoy and Paolo Bortolotti and Leandro Martins and Alex Jenkins and Ricardo Ferreira and Julie Grollier Neuromorphic Computing and Engineering , 2021. |
Steffen Wittrock and Philippe Talatchian and Miguel Romera and Mafalda Jotta Garcia and Marie-Claire Cyrille and Ricardo Ferreira and Romain Lebrun and Paolo Bortolotti and Ursula Ebels and Julie Grollier and others AIP Advances AIP Publishing LLC , 2021. |
Rogerio Dionisio and Pedro Torres and Armando Ramalho and Ricardo Ferreira Journal of Sensor and Actuator Networks Multidisciplinary Digital Publishing Institute , 2021. |
Steffen Wittrock and Philippe Talatchian and Miguel Romera and Samh Menshawy and Mafalda Jotta Garcia and Marie-Claire Cyrille and Ricardo Ferreira and Romain Lebrun and Paolo Bortolotti and Ursula Ebels and Julie Grollier and Vincent Cros Beyond the gyrotropic motion: Dynamic C-state in vortex spin torque oscillators (article) Applied Physics Letters , 2021. |
Roumani F and Azinheiro S and Carvalho J and Prado M and Garrido-maestu A Food Control , 2021. |
Carvalho J and Diéguez L and Ipatov A and Guerreiro J R and Garrido-Maestu A and Azinheiro S and Prado M Talanta , 2021. |
Purwidyantri A and Domingues T and Borme J and Guerreiro J R and Ipatov A and Abreu C M and Martins M and Alpuim P and Prado M Influence of the Electrolyte Salt Concentration on DNA Detection with Graphene Transistors (article) Biosensors , 2021. |
Jon Ashley, Anna Lisa Schaap Johansen, Mohsen Mohammadniaei, Maryam Naseri, Paolo Marcatili, Marta Prado, Yi Sun; Terminal deoxynucleotidyl transferase-mediated formation of protein binding polynucleotides (article) Nucleic Acids Research , 2021. |
A. Castro and I. Carvalho and L. Marques and P.J. Ferreira and A. Cavaleiro and S. Carvalho and S. Calderon Galvanic Oxidation of Bimetallic Zn-Fe Nanoparticles for Oxygen Scavenging (article) Applied Surface Science , 2021. |
Zuxin Chen, Quan Chen, Zebing Chai, Bin Wei, Jun Wang, Yanping Liu, Yumeng Shi, Zhongchang Wang & Jingbo Li Ultrafast growth of high-quality large-sized GaSe crystals by liquid metal promoter (article) NANO RESEARCH , 2021. |
Nagappan Ramaswamy, Swami Kumaraguru, Ratandeep Singh Kukreja, Daniel Groom, Karalee Jarvis, Paulo Ferreira 1 de 1 Mitigation of PtCo/C Cathode Catalyst Degradation via Control of Relative Humidity (article) JOURNAL OF THE ELECTROCHEMICAL SOCIETY , 2021. |
Foteini Roumani, Sarah Azinheiro, Cristina Rodrigues, Jorge Barros-Velázquez, Alejandro Garrido-Maestu, Marta Prado Food Control , 2021. |
Foteini Roumani, Saioa Gómez, Cristina Rodrigues, Jorge Barros-Velázquez, Alejandro Garrido-Maestu, Marta Prado Food Control , 2021. |
Rubén Cebrián, Efres Belmonte-Reche, Valentina Pirota, Anne de Jong, Juan Carlos Morales, Mauro Freccero, Filippo Doria, and Oscar P. Kuipers J. Med. Chem. 2021 , 2021. |
Alessia Pampuri, Alessio Tugnolo, Davide Bianchi, Valentina Giovenzana, Roberto Beghi, Natacha Fontes, Hugo M. Oliveira, Andrea Casson, Lucio Brancadoro, Riccardo Guidetti BIOSYSTEMS ENGINEERING , 2021. |
Marta Vinha Vieira, Igor Piotr Turkiewicz, Karolina Tkacz, Claudio Fuentes-Grünewald, Lorenzo M Pastrana, Pablo Fuciños, Aneta Wojdyło, Paulina Nowicka Microalgae as a Potential Functional Ingredient: Evaluation of the Phytochemical Profile, Antioxidant Activity and In-Vitro Enzymatic Inhibitory Effect of Different Species (article) MOLECULES , 2021. |
Telmo da Silva Lopes, Paula Dias, Ricardo Monteiro, António Vilanova, Dzmitry Ivanou, Adélio Mendes A 25 cm2 Solar Redox Flow Cell: Facing the Engineering Challenges of Upscaling (article) ADVANCED ENERGY MATERIALS , 2021. |
Tascila F. da S. Saranti, Pamela T. S. Melo, Miguel A. Cerqueira, Fauze A. Aouada and Marcia R. de Moura Polymers 2021 , 2021. |
D. Bugallo, E. Langenberg, E. Carbó-Argibay, Noa Varela Dominguez, A. O. Fumega, V. Pardo, Irene Lucas, Luis Morellón, and F. Rivadulla Tuning Coherent-Phonon Heat Transport in LaCoO3/SrTiO3 Superlattices (article) J. Phys. Chem. Lett. , 2021. |
Shalini Aggarwal, Weng Kung Peng and Sanjeeva Srivastava Context Sensitive Links 1 de 1 Multi-Omics Advancements towards Plasmodium vivax Malaria Diagnosis (article) DIAGNOSTICS , 2021. |
Sebastian Calderon V, Rafael V. Ferreira, Deepyanti Taneja, RT Jayanth, Langyan Zhou, Ricardo M. Ribeiro, Deji Akinwande, and Paulo J. Ferreira Atomic Electrostatic Maps of Point Defects in MoS2 (article) Nano Lett. 2021 , 2021. |
Adelaide Miranda, Pieter A. A. De Beule SENSORS , 2021. |
Nivedita Chatterjee, Xiaowei Zhang CRISPR approach in environmental chemical screening focusing on population variability (article) JOURNAL OF TOXICOLOGICAL SCIENCES , 2021. |
C. I. L. de Araujo, H. A. Teixeira, O. O. Toro, C. Liao, L. C. Benetti, J. Borme, D. Schafer, I. Brandt, R. Ferreira, P. Alpuim, Paulo P. Freitas, A. A. Pasa Room temperature two terminal tunnel magnetoresistance in a lateral graphene transistor (article) NANOSCALE , 2021. |
M. F. C. Martins Quintela, J. C. G. Henriques, N. M. R. Peres Third-order polarizability of interlayer excitons in heterobilayers (article) Phys. Rev. B , 2021. |
Catarina L. Nogueira, Diana P. Pires, Rodrigo Monteiro, Sílvio B. Santos, Carla M. Carvalho ACS INFECTIOUS DISEASES , 2021. |
Ana M. Milosevic, Laetitia Haeni, Liliane Ackermann Hirschi, Stefano Vanni, Pablo Campomanes-Ramos, Barbara Rothen-Rutishauser, Laura Rodriguez-Lorenzo, Alke Petri-Fink The Choice of Nanoparticle Surface-Coupled Fluorescent Dyes Impacts Cellular Interaction (article) CHEMNANOMAT , 2021. |
Ishwor Khatri, Pedro Santos, Pedro Anacleto, Deepanjan Sharma, Mohamed Belmoubarik, Nicoleta Nicoara, Mutsumi Sugiyama, Sascha Sadewasser PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS , 2021. |
Cátia Sampaio, Ana Bourbon, Catarina Gonçalves, Lorenzo M. Pastrana, Alice M.Dias, Miguel A. Cerqueira Low energy nanoemulsions as carriers of thyme and lemon balm essential oils (article) LWT , 2021. |
Yuanyuan Shen, Haoli Jiang, Zhiyong Lu, Gaiye Li, Zhongchang Wang, Jianfeng Zhang NANOTECHNOLOGY , 2021. |
Ana T. Rufino, Ana Ramalho, Adelaide Sousa, José Miguel P. Ferreira de Oliveira, Paulo Freitas, Manuel A. Gonzalez Gómez, Yolanda Piñeiro-Redondo, José Rivas, Félix Carvalho, Eduarda Fernandes,* Marisa Freitas Protective Role of Flavonoids against Intestinal Pro-Inflammatory Effects of Silver Nanoparticles (article) MOLECULES , 2021. |
Jessica Caldwell, Patricia Taladriz-Blanco, Barbara Rothen-Rutishauser, Alke Petri-Fink CHIMIA , 2021. |
Briliant Adhi Prabowo, Patrícia D. Cabral, Paulo Freitas, Elisabete Fernandes The Challenges of Developing Biosensors for Clinical Assessment: A Review (article) CHEMOSENSORS , 2021. |
Coelho, Filipe; Botelho, C. M. ; Paris, Juan L.; Marques, Eduardo F.; Silva, Bruno F. B. JOURNAL OF MOLECULAR LIQUIDS , 2021. |
Liu, Lifeng Platinum group metal free nano-catalysts for proton exchange membrane water electrolysis (article) Current Opinion in Chemical Engineering , 2021. |
Ankit Chauhan, Ashish Prajapati ,Carlos Calaza ,Helder Fonseca,Patrícia C. Sousa, Jordi Llobet, Gil Shalev SOLAR RRL , 2021. |
Ashish Prajapati,Jordi Llobet,Patrícia C Sousa,Helder Fonseca,Carlos Calaza,Gil Shalev SOLAR RRL , 2021. |
Vânia Vilas-Boas, Eva Gijbels, Kaat Leroy, Alanah Pieters, Audrey Baze, Céline Parmentier, Mathieu Vinken INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES , 2021. |
Ana Rita Silva, Cláudia Sousa, Daniela Exner, Ruth Schwaiger, Maria Madalena Alves, Dmitri Y. Petrovykh, Luciana Pereira pH-Induced Modulation of Vibrio fischeri Population Life Cycle (article) Chemosensors 2021 , 2021. |
Azinheiro, S., Ghimire, D., Carvalho, J., Prado, M., & Garrido-Maestu, A. (2022) Next-day detection of viable Listeria monocytogenes by multiplex reverse transcriptase real-time PCR (article) Food Control , 2021. |
Elena Navarro-Palomares,Lorena García-Hevia, Esperanza Padín-González, Manuel Bañobre-López, Juan C. Villegas,Rafael Valiente and Mónica L. Fanarraga CANCERS , 2021. |
Goncalves, Liliana, Serov, Alexey, McCool, Geoffrey, Dicome, Mikaela, Sousa, Juliana P. S., Soares, O. Salome , Bondarchuk, Oleksandr, Petrovykh, Dmitri, Lebedev, Oleg, I, Pereira, M. Fernando R., Kolen'ko, Yury New Opportunity for Carbon-Supported Ni-based Electrocatalysts: Gas-Phase CO2 Methanation (article) CHEMCATCHEM , 2021. |
Azinheiro, S., Roumani, F., Carvalho, J., Prado, M., & Garrido-Maestu, A. Suitability of the MinION long read sequencer for semi-targeted detection of foodborne pathogens (article) Analytica Chimica Acta , 2021. |
Ana Mafalda Pinto, Maria Daniela Silva, Lorenzo M Pastrana, Manuel Bañobre-López, Sanna Sillankorva The clinical path to deliver encapsulated phages and lysins (article) FEMS MICROBIOLOGY REVIEWS , 2021. |
Guerreiro, J. R. L., Ipatov, A., Carvalho, J., Toldrà, A., & Prado, M. Amplified plasmonic and microfluidic setup for DNA monitoring (article) Microchimica Acta, (2021) , 2021. |
Cruz, PMQ, Fernandez-Rossier, J Testing complementarity on a transmon quantum processor (article) PHYSICAL REVIEW A , 2021. |
Pedro M.Silva, SergioTorres-Giner, António A.Vicente, Miguel A.Cerqueira Electrohydrodynamic processing for the production of zein-based microstructures and nanostructures (article) Current Opinion in Colloid & Interface Science , 2021. |
Justyna Grzonka, Marcel S. Claro, Alejandro Molina-Sánchez, Sascha Sadewasser, Paulo J. Ferreira Novel Polymorph of GaSe (article) Advanced Functional Materials , 2021. |
Emanuel Sousa; Nuno Sousa; Rosane Sampaio; Joana Vieira; Marcelo Pires; Diogo Aguiam; Alar Ainla; João Gaspar; Gabriel Ribeiro; Edoardo Sotgiu Enhanced virtual reality application with tactile feedback for prototyping in-car dashboard surfaces (proceedings) 2021 IEEE WORLD HAPTICS CONFERENCE (WHC) , 2021. |
Azinheiro, S., Roumani, F., Rodríguez-Lorenzo, L., Carvalho, J., Prado, M., & Garrido-Maestu, A. Food Control (2022) , 2021. |
Shambhavi Yadav, Joana Carvalho, Isabel Trujillo and Marta Prado Foods 2021 , 2021. |
Yadav, S.; Carvalho, J.; Trujillo, I.; Prado, M. Foods , 2021. |
Kundu, Manab, Xiong, Dehua, Thomas, Rajesh, Liu, Lifeng Journal of Alloys and Compounds , 2021. |
Maria Rita Ortega Vega, Estela Kerstner Baldin, Daniela Pavulack Pereira, Martha Cestari Silva Martins, Patricia Pranke, Fabiana Horn, Ivone Pinheiro, Ana Vieira, Begoña Espiña, Silvana Mattedi, Célia de Fraga Malfatti Journal of Hazardous Materials , 2021. |
Elumalai, M., Ipatov, A., Carvalho, J., Guerreiro, J., Prado, M. Anal Bioanal Chem , 2021. |
Amalraj, Susai Francis, Raman, R , Chakraborty, A , Leifer, Nicole, Nanda, Raju, Kunnikuruvan, Sooraj, Kravchuk, Tatyana, Grinblat, Judith, Ezersky, Vladimir, Sun, Rong, Deepak, Francis Leonard, Erk, Christoph, Wu, Xiaohan, Maiti, Sandipan, Sclar, Hadar, Goobes, Gil, Major, Dan Thomas, Talianker, Michael, Markovsky, Boris, Aurbach, Doron Energy Storage Materials , 2021. |
Joana Carvalho, Shambhavi Yadav, Alejandro Garrido-Maestu, Sarah Azinheiro, Isabel Trujillo, Jorge Barros-Velázquez, Marta Prado FOOD CHEMISTRY: MOLECULAR SCIENCES , 2021. |
Xiaoyan Yang, Haoli Jiang, Weiwei Zhang, Tao Liu, Jie Bai, Feng Guo, Yan Yang, Zhongchang Wang, Jianfeng Zhang SEPARATION AND PURIFICATION TECHNOLOGY , 2021. |
Pedro González-Losada; Filipe Alves; Marco Martins; Stephen Mundy; Rosana Dias; KB Vinayakumar Pyroelectrically Rechargeable Electret for Continuous Vibration Energy Harvester (proceedings) 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) , 2021. |
Carvalho, J.; Yadav, S.; Garrido-Maestu, A.G.; Azinheiro, S.; Trujillo, I.; Barros-Velázquez, J.; Prado, M. Food Chemistry: Molecular Sciences , 2021. |
Ruben F. Santos, Bruno M. C. Oliveira, Alexandre Chícharo, Pedro Alpuim, Paulo J. Ferreira, Sónia Simões, Filomena Viana, Manuel F. Vieira Seedless Cu Electroplating on Co-W Thin Films in Low pH Electrolyte: Early Stages of Formation (article) Nanomaterials , 2021. |
Rúben F Santos, Bruno Oliveira, Alexandre Chícharo, Pedro Alpuim, Paulo J Ferreira, Sónia Simões, Filomena Viana, Manuel F Vieira Seedless Cu Electroplating on Co-W Thin Films in Low pH Electrolyte: Early Stages of Formation (article) Nanomaterials 2021 , 2021. |
Francesco Buonocore, Andrea Capasso, Massimo Celino, Nicola Lisi, Olivia Pulci Tuning the Electronic Properties of Graphane via Hydroxylation: An Ab Initio Study (article) JOURNAL OF PHYSICAL CHEMISTRY , 2021. |
Monica Quarato, Ivone Pinheiro, Ana Vieira, Begoña Espiña and Laura Rodriguez-Lorenzo Detection of Silver Nanoparticles in Seawater Using Surface-Enhanced Raman Scattering (article) Nanomaterials 2021 , 2021. |
Bruna Silva, João Rodrigues, Balaji Sompalle, Chun-Da Liao, Nicoleta Nicoara, Jérôme Borme, Fátima Cerqueira, Marcel Claro, Sascha Sadewasser, Pedro Alpuim, Andrea Capasso Efficient ReSe2 Photodetectors with CVD Single-Crystal Graphene Contacts (article) Nanomaterials , 2021. |
Balaji Sompalle, Chun-Da Liao, Bin Wei, Maria de Fátima Cerqueira, Nicoleta Nicoara, Zhongchang Wang, Sascha Sadewasser, Pedro Alpuim, J. Vac. Sci. Technol. , 2021. |
B. Jacob; F. Camarneiro; J. Borme; J. B. Nieder; B. Romeira Highly-efficient GaAs/AlGaAs Nanopillars and NanoLEDs via SiNx Surface Passivation (proceedings) IEEE , 2021. |
Sergey Tkachev, Miguel Monteiro, João Santos, Ernesto Placidi, Mohamed Ben Hassine, Pedro Marques, Paulo Ferreira, Pedro Alpuim, Andrea Capasso Environmentally Friendly Graphene Inks for Touch Screen Sensors (article) Adv. Funct. Mater. , 2021. |
Sergey Tkachev, Miguel Monteiro, João Santos, Ernesto Placidi, Mohamed Ben Hassine,Pedro Marques, Paulo Ferreira, Pedro Alpuim and Andrea Capasso Environmentally-Friendly Graphene Inks for Touch Screen Sensors (article) Advanced Functional Materials , 2021. |
I. Bendjeddou, A. Sidi El Valli, A. Litvinenko, Y. Le Guennec, F. Podevin, S. Bourdel, E. Pistono, D. Morche, A. JENKINS, R. Ferreira, M. Jotta Garcia, R. Lebrun, V. Cros, P. Bortolotti, U. EBELS Radio Receivers based on Spin-Torque Diodes as Energy Detectors (proceedings) IEEE , 2021. |
Melina Zysler, Tal Klingbell, Charles D. Amos, Paulo Fereira and David Zitoun Catalysis Science and Technology , 2021. |
Maryam Naseri ,Arnab Halder ,Mohsen Mohammadniaei ,Marta Prado ,Jon Ashley ,Yi Sun Electrochimica Acta (2021) , 2021. |
Roumani, F.; Azinheiro, S.; Sousa, H.; Sousa, A.; Timóteo, M.; Varandas, T.; Fonseca-silva, D.; Baldaque, I.; Carvalho, J.; Prado, M.; Garrido-Maestu Viruses 2021 , 2021. |
Carvalho J and Maestu AG and Azinheiro S and Fuciños P and Velázquez J B and Miguel RJ De and Gros V and Prado M Scientific Reports , 2021. |
Marisa P. Sárria, Ana Vieira, Ângela Lima, Soraia P. S. Fernandes, Ivo Lopes, Anabela Gonçalves, Andreia C. Gomes, Laura M. Salonen and Begoña Espiña Acute ecotoxicity assessment of a covalent organic framework (article) ACS Appl. Mater. Environ. Sci.: Nano, 2021 , 2021. |
Iranmehr, Ensieh ; Ferreira, Ricardo ; Bohnert, Tim ; Freitas, Paulo , 2021. |
S. Calderon, R. Ribeiro. P.J. Ferreira Manganese Migration in Li1-xMn2O4 Cathode Materials (article) Ultramicroscopy , 2021. |
Soraia P.S.Fernandes, Vanessa F. Fonseca, Vanesa Romero, Irina A. Duarte, Andreia Freitas, Jorge Barbosa, Patrick Reis-Santos, Laura M. Salonen and Begoña Espiña Chemosphere , 2021. |
Ipatov, A and Garrido- Maestu, A and Guerreiro, J R and Purwidyantri, A and Azinheiro, S and Carvalho, J and Romani, F and Elumalai, M and Prado, M Application of Omics-based Miniaturized Systems in Food Quality and Safety (inbook) Foodomics: Omic Strategies and Applications in Food Science , 2021. |
Soraia P. S. Fernandes, Petr Kovář, Milan Pšenička, Artur M. S. Silva, Laura M. Salonen, Begoña Espiña ACS Appl. Mater. Interfaces 2021 , 2021. |
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Somaye Rasouli and Deborah Myers and Nancy Kariuki and Kenji Higashida and Naotoshi Nakashima and Paulo Ferreira On the Electrochemical Degradation of Pt-Ni Nanocatalysts: An Identical Location Aberration-Corrected STEM Study (article) Nano Letters , 2018. |
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P.Paradiso and R.L.Santos and R.B.Horta and J.N.C.Lopes and P.J.Ferreira and R.Colaço Formation of nanocrystalline tobermorite in calcium silicate binders with low C/S ratio (article) Acta Materialia , 2018. |
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Sitaramanjaneva Mouli Thalluri and Jerome Borme and Kang Yu and Junyuan Xu and Isilda Amorim and Joao Gaspar and Liang Qiao and Paulo Ferreira and Pedro Alpuim and Lifeng Liu Conformal and continuous deposition of bifunctional cobalt phosphide layers on p-silicon nanowire arrays for improved solar hydrogen evolution (article) Nano Research , 2018. |
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C.Fernandes and S.Calderon V. and Lina F.Ballesteros and Miguel A. Cerqueira and L.M.Pastrana and José A.Teixeira and P.J.Ferreira and S.Carvalho Carbon-based sputtered coatings for enhanced chitosan-based films properties (article) Applied Surface Science , 2018. |
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Marta Prado Rodríguez Alejandro Garrido-Maestu David Tomás Fornés The Use of Multiplex Real-Time PCR for the Simultaneous Detection of Foodborne Bacterial Pathogens (inbook) Methods in Molecular Biology Humana Press, New York, NY , 2018. |
Marta Prado Rodríguez Alejandro Garrido-Maestu David Tomás Fornés The Use of Multiplex Real-Time PCR for the Simultaneous Detection of Foodborne Bacterial Pathogens (inbook) Methods in Molecular Biology Humana Press, New York, NY , 2018. |
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Somaye Rasouli and Deborah Myers and Nancy Kariuki and Kenji Higashida and Naotoshi Nakashima and Paulo Ferreira On the Electrochemical Degradation of Pt-Ni Nanocatalysts: An Identical Location Aberration-Corrected STEM Study (article) Nano Letters , 2018. |
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N Viggianiello and F Flamini and M Bentivegna and N Spagnolo and A Crespi and D J Brod and E F Galvão and R Osellame and F Sciarrino Optimal photonic indistinguishability tests in multimode networks (article) Science Bulletin , 2018. |
Nuno Azoia Egipto Antunes Ana Loureiro Diana Guimaraẽs Jennifer Noro Alexandra Rollett Georg Guebitz Artur Cavaco-Paulo G Eugenia Nogueira Marisa P. Sarria Internalization of Methotrexate Conjugates by Folate Receptor-alpha (article) Biochemistry , 2018. |
D J Groom and K Yu and S Rasouli and J Polarinakis and A C Bovik and P J Ferreira Automatic Segmentation of Inorganic Nanoparticles in BF TEM Micrographs (article) Ultramicroscopy , 2018. |
Viviana Sousa José Rodrigues Francis Leonard Deepak Yohei Kakefuda Naoyuki Kawamoto Tetsuya Baba Bryan Owens-Baird Pedro Alpuim Kirill Kovnir Takao Mori Yury Kolen’ko V Marek Piotrowski Miguel Franco Probing of Thermal Transport in 50 nm Thick PbTe Nanocrystal Films by Time-Domain Thermoreflectance (article) Journal of Physical Chemistry C , 2018. |
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A Houshang and R Khymyn and H Fulara and A Gangwar and M Haidar and S R Etesami and R Ferreira and P P Freitas and M Dvornik and R K Dumas and J Åkerman Spin transfer torque driven higher-order propagating spin waves in nano-contact magnetic tunnel junctions (article) Nature Communications Springer Nature America, Inc , 2018. |
Neves, and L. S. Barbosa Languages and models for hybrid automata: A coalgebraic perspective (article) Theoretical Computer Science, Elsevier , 2018. |
A AL-Rjoub and L Rebouta and P Costa and N P Barradas and E Alves and P J Ferreira and K Abderrafi and A.Matilainen and K.Pischow A design of selective solar absorber for high temperature applications (article) Solar Energy , 2018. |
Barbara Drasler Laura Rodriguez-Lorenzo Dominic Urban Dimitri Vanhecke Dedy Septiadi Liliane Hirschi-Ackermann Alke Petri-Fink Barbara Rothen-Rutishauser A Estelle Durantie Hana Barosova Carbon nanodots: Opportunities and limitations to study their biodistribution at the human lung epithelial tissue barrier (article) Biointerphases , 2018. |
Calderon V S. and Ribeiro T. and Farinha J P S. and Baleizão C. and Ferreira P J. On the Structure of Amorphous Mesoporous Silica Nanoparticles by Aberration-Corrected STEM (article) Small , 2018. |
JoãoGaspar SarahAzinheiro LorenaDiéguez AlejandroGarrido-Maestu ManuelVázquez JorgeBarros-Velázquez SusanaCardoso MartaPradoa JoanaCarvalho GemaPuertas Analytica Chimica Acta , 2018. |
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H F Yang and F Garcia-Sanchez and X K Hu and S Sievers and T Böhnert and J D Costa and M Tarequzzaman and R Ferreira and M Bieler and H W Schumacher Applied Physics Letters AIP Publishing , 2018. |
Maria Blanco‐Formoso Leonardo Furini Laura Rodríguez‐Lorenzo Nicolas Pazos‐Perez Luca Guerrini Moises Pérez‐Lorenzo Miguel Correa‐Duarte Ramon Alvarez‐Puebla N A A Andrea Mariño‐Lopez Ana Sousa‐Castillo Microporous Plasmonic Capsules as Stable Molecular Sieves for Direct SERS Quantification of Small Pollutants in Natural Waters (article) CHEMNANOMAT , 2018. |
Lester Barnsley Amal Taouallah João Fernandes Bruno Silva Susana Cardoso Lorena Diéguez Begoña Espiña Paulo Freitas C F B P Alexandre Chícharo Marco Martins Enhanced magnetic microcytometer with 3D flow focusing for cell enumeration (article) Lab on a chip , 2018. |
H F Yang and X K Hu and S Sievers and T Bohnert and J D Costa and M Tarequzzaman and R Ferreira and M Bieler and H W Schumacher Coherent Control of Acoustic-Wave-Induced Magnetization Dynamics in Magnetic Tunnel Junctions (inproceedings) 2018 Conference on Precision Electromagnetic Measurements IEEE , 2018. |
Dehua Xiong Rongsheng Cai Xian-Kui Wei Marc Heggen Emanuele Barborini Simone Vinati Rafal E.Dunin-Borkowski Richard E.Palmer Lifeng Liu Junyuan Xu Shane Murphy ACS Applied Energy Materials , 2018. |
M C Gonçalves and R F P Pereira and P Ferreira and E Carbó-Argibay and J Catita and G Toquer and S C Nunes and Zea V de Bermudez Structuring of di-alkyl-urethanesils (article) Journal of Sol-Gel Science and Technology , 2018. |
P.Paradiso and R.L.Santos and R.B.Horta and J.N.C.Lopes and P.J.Ferreira and R.Colaço Formation of nanocrystalline tobermorite in calcium silicate binders with low C/S ratio (article) Acta Materialia , 2018. |
Abdelkarim Mellah; Soraia Fernandes; Ramón Rodríguez; José Otero; Jairo Paz; Jacobo Cruces; Dana Medina; Harik Djamila; Begoña Espiña; Laura P S D M Salonen Adsorption of Pharmaceutical Pollutants from Water Using Covalent Organic Frameworks (article) Chemical European Journal , 2018. |
Marco Martins Susana Cardoso Lorena Diéguez Begoña Espiña Paulo Freitas P Alexandre Chicharo Lester C. Barnsley Custom Magnet Design for a Multi-Channel Magnetic Microcytometer (article) IEEE Transactions on Magnetics , 2018. |
M Tarequzzaman and A S Jenkins and T Böhnert and J Borme and L Martins and E Paz and R Ferreira and P P Freitas Broadband voltage rectifier induced by linear bias dependence in CoFeB/MgO magnetic tunnel junctions (article) Applied Physics Letters , 2018. |
M C Gonçalves and R F P Pereira and P Ferreira and E Carbó-Argibay and J Catita and G Toquer and S C Nunes and Zea V de Bermudez Structuring of di-alkyl-urethanesils (article) Journal of Sol-Gel Science and Technology , 2018. |
Schmidt Shaozhuan Huang; Lin Zhangad; Lifeng Liu; Lixiang Liu; Junjie Li; Han Hu; Jiawei Wang; Fei Dinga; Oliver G Energy Storage Materials , 2018. |
Nicoleta Nicoara and Sylvie Harel and Thomas Lepetit and Ludovic Arzel and Nicolas Barreau and Sascha Sadewasser ACS Applied Energy Materials , 2018. |
Yu Xu Amorim Gaspar Qiao Ferreira Alpuim Liu K J I J L P P L S. Mouli Thalluri J. Borme Conformal and continuous deposition of bifunctional cobalt phosphide layers on p-silicon nanowire arrays for improved solar hydrogen evolution (article) Nano Research , 2018. |
Sitaramanjaneva Mouli Thalluri and Jerome Borme and Kang Yu and Junyuan Xu and Isilda Amorim and Joao Gaspar and Liang Qiao and Paulo Ferreira and Pedro Alpuim and Lifeng Liu Conformal and continuous deposition of bifunctional cobalt phosphide layers on p-silicon nanowire arrays for improved solar hydrogen evolution (article) Nano Research , 2018. |
Sarah Azinheiro Pablo Fuciños Joana Carvalho Marta Prado Alejandro Garrido-Maestu Food Chemistry , 2018. |
Sarah Azinheiro Pablo Fuciños Joana Carvalho Marta Prado Alejandro Garrido-Maestu Food Chemistry , 2018. |
Sascha Sadewasser and Nicoleta Nicoara and Santiago D Solares Artifacts in time-resolved Kelvin probe force microscopy (article) Beilstein J. Nanotechnol. , 2018. |
R K Ahluwalia and X Wang and J-K Peng1 and N N Kariuki and D J Myers and S Rasouli and P J Ferreira and Z Yang and A Martinez-Bonastre and D Fongalland and J Sharman Durability of De-Alloyed Platinum-Nickel Cathode Catalyst in Low Platinum Loading Membrane-Electrode Assemblies Subjected to Accelerated Stress Tests (article) Journal of Electrochemical Society , 2018. |
Li Liu Zhang Xiong Amorim Thalluri Li Liu Lifeng* T F; J J; Y F; B S; D H; I; S M; W; Xu J. Y.; Liu Energy Environ. Sci. , 2018. |
O’Brien Lennon Atkinson Cryan Oulton Whitney H E J G M J R H M M. Lopez-Garcia N. Masters Light-induced dynamic structural color by intracelullar 3D photonic crystals in brown algae (article) Science Advances , 2018. |
Yu Xu Amorim Gaspar Qiao Ferreira Alpuim Lifeng Liu* K J Y I J L P P S. M. Thalluri J. Borme Nano Research , 2018. |
Joana Carvalho Pablo Fuciños Marta Prado Alejandro Garrido-Maestu Sarah Azinheiro Food Control , 2018. |
Joana Carvalho Pablo Fuciños Marta Prado Alejandro Garrido-Maestu Sarah Azinheiro Food Control , 2018. |
N Viggianiello and F Flamini and L Innocenti and D Cozzolino and M Bentivegna and N Spagnolo and A Crespi and D J Brod and E F Galvão and R Osellame and F Sciarrino Experimental generalized quantum suppression law in Sylvester interferometers (article) New Journal of Physics , 2018. |
Sitaramanjaneya Mouli Thalluri; Jérôme Borme; Dehua Xiong; Junyuan Xu; Wei Li; Isilda Amorim; Pedro Alpuim; João Gaspar; Hélder Fonseca; Liang Qiao; Lifeng Liu Sustainable Energy & Fuels , 2018. |
Xiong Zhang Liu Wu Amorim Li Thalluri Lifeng Liu D H B S Y F K H I W S M J.Y. Xu J.J. Li Chem. Sci. , 2018. |
T Böhnert and E Paz and R Ferreira and P P Freitas Magnetic tunnel junction thermocouple for thermoelectric power harvesting (article) Physics Letters A Elsevier BV , 2018. |
C.Fernandes and S.Calderon V. and Lina F.Ballesteros and Miguel A Cerqueira and L.M.Pastrana and José A.Teixeira and P.J.Ferreira and S.Carvalho Carbon-based sputtered coatings for enhanced chitosan-based films properties (article) Applied Surface Science , 2018. |
Nagamalai Vasimalai and Vânia Vilas-Boas and Juan Gallo and María Fátima de Cerqueira and Mario Menéndez-Miranda and José Manuel Costa-Fernández and Lorena Diéguez and Begoña Espiña and María Teresa Fernández-Argüelles. BEILSTEIN JOURNAL OF NANOTECHNOLOGY , 2018. |
Joana Carvalho Marta Prado Alejandro Garrido-Maestu Sarah Azinheiro Food Microbiology , 2018. |
Joana Carvalho Marta Prado Alejandro Garrido-Maestu Sarah Azinheiro Food Microbiology , 2018. |
Marta Prado Sarah Azinheiro Joana Carvalho and Alejandro Garrido-Maestu. Frontiers in sustainable food systems , 2018. |
Marta Prado Sarah Azinheiro Joana Carvalho and Alejandro Garrido-Maestu. Frontiers in sustainable food systems , 2018. |
Sarah Azinheiro Alejandro Garrido-Maestu Jorge Barros-Velázquez Marta Prado Joana Carvalho Renato Negrinho Novel approach for accurate minute DNA quantification on microvolumetric solutions (article) Microchemical Journal , 2018. |
Sarah Azinheiro Alejandro Garrido-Maestu Jorge Barros-Velázquez Marta Prado Joana Carvalho Renato Negrinho Novel approach for accurate minute DNA quantification on microvolumetric solutions (article) Microchemical Journal , 2018. |
Amori Lifeng Liu* ; I ; J.Y. Xu ; D. H. Xiong ACS Applied Nano Materials , 2018. |
Pedro M P Salomé and Bart Vermang and Rodrigo Ribeiro-Andrade and Jennifer P Teixeira and José M V Cunha and Manuel J Mendes and Sirazul Haque and Jêrome Borme and Hugo Águas and Elvira Fortunato and Rodrigo Martins and Juan C González and Joaquim P Leitão and Paulo A Fernandes and Marika Edoff and Sascha Sadewasser Passivation of Interfaces in Thin Film Solar Cells: Understanding the Effects of a Nanostructured Rear Point Contact Layer (article) Advanced Materials Interfaces , 2018. |
Vânia Vilas-Boas and Begoña Espiña and Yury V Kolen'ko and Manuel Bañobre-Lopez and José A Duarte and Verónica C Martins and Dmitri Y Petrovykh and Paulo P Freitas and Felix D Carvalho Biointerphases , 2018. |
Igor Bdkin Ankor González-Mayorga Gonzalo Irurueta Helena Nogueira María Serrano Pedro Alpuim Paula A.A.P.Marques I S C Gil Gonçalves Jérôme Borme Reductive nanometric patterning of graphene oxide paper using electron beam lithography (article) Carbon , 2018. |
Cerqueira Borme Alpuim M F J P R. Campos G. Machado Jr. Wafer scale fabrication of graphene microelectrode arrays for the detection of DNA hybridization (article) Microelectronic Engineering , 2018. |
K J Merazzo and T Costa and F Franco and R Ferreira and M Zander and M Türr and T Becker and P P Freitas and S Cardoso Reading magnetic ink patterns with magnetoresistive sensors (article) AIP Advances , 2018. |
M Tarequzzaman and T Bohnert and A S Jenkins and J Borme and E Paz and R Ferreira and P P Freitas Influence of MgO Tunnel Barrier Thickness on the Output Power of Three-Terminal Spin Hall Nano-Oscillators (article) IEEE Transactions on Magnetics Institute of Electrical and Electronics Engineers (IEEE) , 2018. |
R Ferreira and E Paz Magnetoresistive sensor (patent) , 2018. |
L. Chen, M. Lopez-Garcia, M. PC Taverne, X. Zheng, Y-L. D. Ho, J. G. Rarity Optics Letters , 2017. |
K., Abderrafi and R., Ribeiro-Andrade and N., Nicoara and M. F., Cerqueira and M., Gonzalez Debs and H., Limborço and P. M. P., Salomé and J. C., Gonzalez and F., Briones and J. M., Garcia and S., Sadewasser Epitaxial CuInSe2 thin films grown by molecular beam epitaxy and migration enhanced epitaxy (article) Journal of Crystal Growth , 2017. |
Pedro M. P., Salomé and Rodrigo, Ribeiro-Andrade and Jennifer P., Teixeira and Jan, Keller and Tobias, Törndahl and Nicoleta, Nicoara and Marika, Edoff and Juan Carlos, Gonzalez and Joaquim Pratas, Leitão and Sascha, Sadewasser. Cd and Cu Interdiffusion in Cu(In, Ga)Se2/CdS Hetero-Interfaces (article) IEEE Journal of Photovoltaics , 2017. |
Pedro M. P., Salomé and Jennifer P., Teixeira and Jan, Keller and Tobias, Torndahl and Sascha, Sadewasser and Joaquim P., Leitão Influence of CdS and ZnSnO Buffer Layers on the Photoluminescence of Cu(In,Ga)Se 2 Thin Films (article) IEEE Journal of Photovoltaics , 2017. |
P. M. P., Salomé and J., Keller and T., Torndahl and J. P., Teixeira and N., Nicoara and R., Ribeiro Andrade and D. G., Stroppa and J. C., González and M,. Edoff and J. P., Leitão and S., Sadewasser CdS and Zn1−xSnxOy buffer layers for CIGS solar cells (article) Solar Energy Materials and Solar Cells , 2017. |
Sascha, Sadewasser and Pedro M.P,. Salomé and Humberto, Rodriguez-Alvarez Materials efficient deposition and heat management of CuInSe2 micro-concentrator solar cells (article) Solar Energy Materials and Solar Cells , 2017. |
A. V. Silva and R. Ferreira and E. Paz and D. C. Leitao and T. Devolder and S. Cardoso and P. P. Freitas Thermal FMR Spectral Characterization of Very Low RA In-Plane MgO Magnetic Tunnel Junctions (article) IEEE Transactions on Magnetics Institute of Electrical and Electronics Engineers (IEEE) , 2017. |
E. G. Vidal and D. R. Muñoz and S. I. R. Arias and J. S. Moreno and S. Cardoso and R. Ferreira and P. P. Freitas Electronic Energy Meter Based on a Tunnel Magnetoresistive Effect (TMR) Current Sensor (article) Materials MDPI AG , 2017. |
J. D. Costa and S. Serrano-Guisan and B. Lacoste and A. S. Jenkins and T. Böhnert and M. Tarequzzaman and J. Borme and F. L. Deepak and E. Paz and J. Ventura and R. Ferreira and P. P. Freitas Scientific Reports Springer Nature , 2017. |
T. Böhnert and S. Serrano-Guisan and E. Paz and B. Lacoste and R. Ferreira and P. P. Freitas Magnetic tunnel junctions with integrated thermometers for magnetothermopower measurements (article) Journal of Physics: Condensed Matter IOP Publishing , 2017. |
M. Kuepferling and F. Garcia-Sanchez and T. Böhnert and R. Ferreira and R. Dutra and R. L. Sommer and M. Pasquale Influence of thermal gradients on the vortex dynamics in CoFeB MTJs (inproceedings) 2017 IEEE International Magnetics Conference (INTERMAG) , 2017. |
T. Böhnert and R. Dutra and R. L. Sommer and E. Paz and S. Serrano-Guisan and R. Ferreira and P. P. Freitas Influence of the thermal interface resistance on the thermovoltage of a magnetic tunnel junction (article) Physical Review B American Physical Society , 2017. |
L. Martins and J. Ventura and R. Ferreira and P. P. Freitas Applied Surface Science , 2017. |
H. F. Yang and X. K. Hu and N. Liebing and T. Böhnert and J. D. Costa and M. Tarequzzaman and R. Ferreira and S. Sievers and M. Bieler and H. W. Schumacher Applied Physics Letters , 2017. |
Nicoara, Nicoleta and Kunze, Thomas and Jackson, Philip and Hariskos, Dimitrios and Duarte, Roberto Félix and Wilks, Regan G. and Witte, Wolfram and Bär, Marcus and Sadewasser, Sascha ACS Appl. Mater. Interfaces , 2017. |
Zijuan Du, Dehua Xiong, Santosh KumarVerma, Baoshun Liu, Xiujian Zhao, Lifeng Liu, Hong Li Inorganic Chem. Frontier , 2017. |
Zijuan Du, Dehua Xiong,* Santosh Kumar Verma, Baoshun Liu, Xiujian Zhao, Lifeng Liu and Hong Li* Inorganic Chem. Frontier , 2017. |
Barreau, Nicolas and Frelon, Agathe and Lepetit, Thomas and Gautron, Eric and Gautier, Nicolas and Ribeiro-Andrade, Rodrigo and Nicoara, Nicoleta and Sadewasser, Sascha and Zabierowski, Pawel and Arzel, Ludovic and Choubrac, Léo and Harel, Sylvie and Deudon, Catherine and Latouche, Camille and Jobic, Stéphane and Caldes, Maite and Assmann, Lionel and Tsoulka, Polyxeni and Péan, Emmanuel V. and Lorthioir, Justine and Geschier, Frédéric and Braems, Isabelle and Moret, Matthieu and Briot, Olivier and Ouvrard, Guy High efficiency solar cell based on full PVD processed Cu(In,Ga)Se2/CdIn2S4 heterojunction (article) Solar RRL , 2017. |
K. Abderrafi and R.-Ribeiro Andrade and N. Nicoara and M.F. Cerqueira and M. Gonzalez Debs and H. Limborço and P.M.P. Salomé and J.C. Gonzalez and F. Briones and J.M. Garcia and S. Sadewasser Epitaxial CuInSe2 thin films grown by molecular beam epitaxy and migration enhanced epitaxy (article) J. Crystal Growth , 2017. |
S. Sadewasser Geometry and materials considerations for thin film micro-concentrator solar cells (article) Solar Energy , 2017. |
Leonardo Banchi, J. Rossier-Fernandez, Cyrus F. Hirjibehedin, and S. Bose Gating classical information flow via equilibrium quantum phase transitions (article) Phys. Rev. Lett. , 2017. |
W. Li, D. H. Xiong, X. F. Gao, W. G. Song, F. Xia, Lifeng Liu* Catalysis Today , 2017. |
P. M. P. {Salomé} and R. {Ribeiro-Andrade} and J. P. {Teixeira} and J. {Keller} and T. {Törndahl} and N. {Nicoara} and M. {Edoff} and J. C. {González} and J. P. {Leitão} and S. {Sadewasser} Cd and Cu inter-diffusion in Cu(In,Ga)Se2/CdS hetero-interfaces (article) IEEE Journal of Photovoltaics , 2017. |
W. Li, X. F. Gao, D. H. Xiong, F. Wei, W. G. Song, J. Y. Xu, Lifeng Liu* Hydrothermal synthesis of monolithic Co3Se4 nanowire electrodes for oxygen evolution and overall water splitting with high efficiency and extraordinary catalytic stability (article) Advanced Energy Materials , 2017. |
Lifeng Liu Atomic layer deposition of electrocatalysts for use in fuel cells and electrolyzers (inbook) , 2017. |
D. H. Xiong, W. Li, Lifeng Liu* Chem Asian J. , 2017. |
D. H. Xiong, Q. Q. Zhang, S. M. Thalluri, J. Y. Xu, W. Li, X. L. Fu, L. F. Liu* One-step fabrication of monolithic electrodes comprising Co9S8 particles supported on cobalt foam for efficient and durable oxygen evolution reaction (article) Chemistry – A European Journal , 2017. |
D.H. Xiong, Q.Q. Zhang, W. Li, J. J. Li, X.L. Fu, M. F. Cerqueira, P. Alpuim, Lifeng Liu Nanoscale , 2017. |
Nicoara, N and Th. Lepetit and L. Arzel and S. Harel and N. Barreau and S. Sadewasser Effect of the KF post-deposition treatment on grain boundary properties in Cu(In, Ga)Se2 thin films (article) Scientific Reports 7 , 2017. |
W. Li, X. F. Gao, D. H. Xiong, F. Xia, J. Liu, W. G. Song, J. Y. Xu, S. M. Thalluri, X. L. Fu, Lifeng Liu* Chem. Sci , 2017. |
P.M.P. Salomé, J.P. Teixeira, J. Keller, T. Törndahl, S. Sadewasser, and J.P. Leitão Influence of CdS and ZnSnO Buffer Layers on the Photoluminescence of Cu(In,Ga)Se2 Thin Films (article) IEEE Journal of Photovoltaics , 2017. |
Shaozhuan Huang*, Lin Zhang*, X.L. Lu, Lifeng Liu, L. X. Liu, X.L. Sun, Y. Yin, S. Oswald, F. Ding, O. G. Schmidt, ACS Nano , 2017. |
F. Delgado, J. Fernández-Rossier Spin decoherence of adatoms on surfaces (article) Progress in Surface Science , 2017. |
B. Olivera, C. Salgado, J. L. Lado, A. Karimi, V. Henkel, E. Scheer, J. Fernández-Rossier, J. J. Palacios, C. Untiedt Electronic Transport in Gadolinium Atomic-Size Contacts (article) Rev. B , 2017. |
F. Delgado and J. Fernández-Rossier RKKY oscillations in the spin relaxation rates of atomic scale (article) Phys. Rev. B , 2017. |
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Junjie Li, Qiang Li, Zhongchang Wang and Francis Leonard Deepak Real-Time Dynamical Observation of Lattice Induced Nucleation and Growth in Interfacial Solid-Solid Phase Transitions (article) Cryst. Growth Des., Just Accepted Manuscript , 2016. |
J. Rodrigo Magana, Yury V. Kolen’ko, Francis Leonard Deepak, Conxita Solans, Rekha Goswami Shrestha, Jonathan P. Hill, Katsuhiko Ariga, Lok Kumar Shrestha and Carlos Rodriguez-Abreu From Chromonic Self-Assembly to Hollow Carbon Nanofibers for Efficient Materials in Supercapacitor and Vapor Sensing Applications (article) ACS Applied Materials & Interfaces , 2016. |
Lifeng Liu* M. Kundu Sci. Adv. Today , 2016. |
Fernandez-Arguelles Diéguez Fuciños Vial Oliveira Reis Boehme B ; M T ; L ; P ; S ; J M ; R L ; K Prado M.; Espiña Detection of Foodborne Pathogens Using Nanoparticles. Advantages and Trends (inbook) Antimicrobial Food Packaging Academic Press, London Jorge Barros-Velazquez , 2016. |
Fernandez-Arguelles MT Bañobre-López M Gallo J Vasimalai N Green synthesis of multimodal 'OFF-ON' activatable MRI/optical probes (article) Dalton Trans. , 2016. |
Vial Rivas Calo-Mata Barros-Velázquez I ; S ; J ; P ; J Prado M.; Ortea Advanced DNA- and Protein-based Methods for the Detection and Investigation of Food Allergens (article) Critical Reviews in Food Science and Nutrition , 2016. |
Vial Rivas Calo-Mata Barros-Velázquez I ; S ; J ; P ; J Prado M.; Ortea Advanced DNA- and Protein-based Methods for the Detection and Investigation of Food Allergens (article) Critical Reviews in Food Science and Nutrition , 2016. |
N Vasimalai and Maria T Fernández-Argüelles*. Nanotechnology , 2016. |
Barone Valenti Pardo P R V JL Lado D Guterding Quantum spin Hall effect in rutile-based oxide multilayers (article) Phys. Rev. B , 2016. |
Phrathep T.Lawson Oulton Whitney O-P R H M. Jacobs M. Lopez-Garcia Photonic multilayer structure of Begonia chloroplasts enhances photosynthetic efficiency (article) Nature Plants , 2016. |
Vilanova N BFB Silva C Rodriguez-Abreu Recent advances in multiple emulsions and their application as templates (article) Curr. Opin. Colloid Interface Sci , 2016. |
Vilanova N BFB Silva C Rodriguez-Abreu Recent advances in multiple emulsions and their application as templates (article) Curr. Opin. Colloid Interface Sci , 2016. |
Pardo V JL Lado Dirac topological insulator in the dz2 manifold of a honeycomb oxide (article) Phys. Rev. B , 2016. |
Wang Lifeng Liu* X G D. H. Xiong W. Li Nanotechnology , 2016. |
Wang Xiong Huang Guo Bao Lifeng Liu* X G D H P P W G X Q W. Li X. F. Gao Journal of Power Sources , 2016. |
Francisco Guinea Luis A. Gonzalez-Arraga J.L. Lado Topological features of engineered arrays of adsorbates in honeycomb lattices (article) Physica B: Condensed Matter , 2016. |
Teixeira Stroppa R.-Ribeiro Andrade Nicoara Abderrafi Leitão González J P D N K J J C H. Limborço P.M.P. Salomé and S Sadewasser Synthesis and formation mechanism of CuInSe2 nanowires by one-step self-catalysed evaporation growth (article) CrystEngComm , 2016. |
Sousa Fernandes Sadewasser Cunha M G P A S A F da J.P. Teixeira P.M.P. Salomé and J P Leitão Optical and structural investigation of inline Cu2ZnSnS4 based solar cells (article) Phys. Status Solidi B , 2016. |
Kundu Attila Goren Maria Silva Lifeng Liu Senentxu Lanceros-Mendez* M Joao Nunes-Pereira Manab Composites Part B , 2016. |
Fernández-Rossier J J. L. Lado 2. Landau levels in 2D materials using Wannier Hamiltonians obtained by first principles (article) 2DMaterials , 2016. |
Laranjeira M S. and Moço A. and Ferreira J. and Coimbra S. and Costa E. and Santos-Silva A. and Ferreira P J. and Monteiro F.J. Different hydroxyapatite magnetic nanoparticles for medical imaging: Its effects on hemostatic, hemolytic activity and cellular cytotoxicity (article) Colloids and surfaces B: Biointerfaces , 2016. |
Moreira Fernandes Castro Lopes Corte-Real Cavaco-Paulo Real Oliveira Gomes P J L I M A M E C D A C C.N. Oliveira M.P. Sarria Counter ions and constituents combination affect DODAX:MO nanocarriers toxicity in vitro and in vivo (article) Toxicology Research , 2016. |
NMR Peres B Amorim RM Ribeiro Phys. Rev. B. , 2016. |
Li Lifeng Liu* W Dehua Xiong X. G. Wang Chem. Commun , 2016. |
Murshidy Abdel-Hady Serry Adawi Rarity Oulton Barnes M M A G M Y A M J G R W L S. Nuñez-Sanchez M. Lopez-Garcia Excitonic Optical Tamm States: A Step toward a Full Molecular–Dielectric Photonic Integration (article) ACS Photonics , 2016. |
Karalee A Jarvis and Chih-Chieh Wang and James C Knight and Lew Rabenberg and Arumugam Manthiram and Paulo J Ferreira Formation and effect of orientation domains in layered oxide cathodes of lithium-ion batteries (article) Acta Materialia , 2016. |
Xiong Lifeng Liu* D H X. G. Wang W. Li Fast fabrication of self-supported porous nickel phosphide foam for efficient, durable oxygen evolution and overall water splitting (article) J. Mater. Chem , 2016. |
Xiong Petrovykh Lifeng Liu* D H D Y X. G. Wang W. Li Adv. Funct. Mater. , 2016. |
Xiong Lifeng Liu* D H W. Li X. G. Wang Int. J. Hydrogen Energy 2016, 41, 9344-9354 , 2016. |
Fernández-Rossier J J. L. Lado Unconventional Yu-Shiba-Rusinov states in hydrogenated graphene (article) 2DMaterials , 2016. |
Fernandez-Rossier J A. Roldán-Molina A. S. Núnez Topological spin waves in the atomic-scale magnetic skyrmion crystal (article) New Journal of Physics , 2016. |
Island Niño Aballe Foerster Bruno Zant Rubio-Bollinger Agraït Pérez Fernandez-Rossier Castellanos-Gomez J M A L M F Y H S J G N E J A l van der A. J. Molina-Mendoza J. L. Lado Centimeter-scale synthesis of ultrathin layered MoO3 by van der Waals epitaxy (article) Chemistry of Materials , 2016. |
Fahrenfort Girovsky Toskovic Lado Fernández-Rossier Otte E J R J L J A F F. E. Kalff M. P. Rebergen A kilobyte rewritable atomic memory (article) Nature Nanotechnology , 2016. |
D Jacob and J Fernández-Rossier Competition between quantum spin tunneling and Kondo effect (article) Eur. Phys. J. B. , 2016. |
Melle-Franco Fernández-Rossier M J R. Ortiz J. L. Lado Engineering spin exchange in nonbipartite graphene zigzag edges (article) Phys. Rev. B , 2016. |
Charles D Amos and Manuel A Roldan and Maria Varela and John B Goodenough and Paulo J Ferreira Revealing the Reconstructed Surface of Li[Mn2]O4 (article) Nano Letters , 2016. |
Le Xin and Somaye Rasouli and Fan Yang and Aytekin Uzunoglu and Cheng-Jun Sun and Paulo Jorge Ferreira and Yuzi Liu and Lia Stanciu and Jian Xie Understanding Pt nanoparticle anchoring on graphene supports through surface functionalization (article) ACS Catalysis , 2016. |
JC Sousa Cerqueira Mendes-Pinto J I LR Pires F Marques Nano- and micro-based systems for immunotolerance induction in Multiple Sclerosis (article) Human Vaccines and Immunotherapeutics , 2016. |
JC Sousa Cerqueira Mendes-Pinto J I LR Pires F Marques Nano- and micro-based systems for immunotolerance induction in Multiple Sclerosis (article) Human Vaccines and Immunotherapeutics , 2016. |
Lifeng Liu Wang Zeng Xie Jin Zhang H Y W J C H * Z C. Y. Wu W. Huang Synthesis and phase transformation of hierarchical structure LiFePO4 for Li-ion Battery (article) CrystEngComm , 2016. |
Donzel-Gargand Ch. Frisk Joel Salomé Borme Sadewasser Ch. Platzer-Björkman O J P J S B. Vermang Y. Ren and M Edoff IEEE Journal of Photovoltaics , 2016. |
Nogueira SS Goncalves Cerqueira MF Alpuim Tovar Rodriguez-Abreu Brezesinski Gomes AC Lucio Oliveira P J C G M Oliveira ACN Role of counter-ion and helper lipid content in the design and properties of nanocarrier systems: a biophysical study in 2D and 3D lipid assemblies (article) RSC Advances , 2016. |
Machado Jr. Cerqueira Freitas Zucolotto Peres G F P P V N M R N. C. S. Vieira J. Borme and P Alpuim Graphene field-effect transistor array with integrated electrolytic gates scaled to 200 mm (article) Journal of Physics: Condensed Matter , 2016. |
Iglesias Machado Jr. V G P. Alpuim M. F. Cerqueira and J Borme Laser patterning of amorphous silicon thin films deposited on flexible and rigid substrates (article) physica status solidi (a) , 2016. |
Ana Mestre Pedro Inácio Bragança Jérôme Borme George Machado Jr. Fátima Cerqueira Pedro Alpuim J Sanaz Asgarifa Henrique L. Gomes Electrochemically Gated Graphene Field-Effect Transistor for Extracellular Cell Signal Recording (conference) Technological Innovation for Cyber-Physical Systems Springer, Cham , 2016. |
H Bi and A C Fernandes and S Cardoso and P P Freitas Interference-blind microfluidic sensor for ascorbic acid determination by UV/vis spectroscopy (article) Sensors and Actuactos B, Chemical , 2016. |
T J Huisman and R V Mikhaylovskiy and J D Costa and F Freimuth and E Paz and J Ventura and P P Freitas and S Blügel and Y Mokrousov and Th. Rasing and T Kimel Femtosecond control of electric currents in metallic ferromagnetic heterostructures (article) Nature Nanotechnology , 2016. |
N C S Vieira and J Borme and G. Machado and F. Cerqueira and P P Freitas and V Zucolotto and N M R. Peres and P Alpuim Graphene field-effect transistor array with integrated electrolytic gates scaled to 200 mm (article) J. Phys. Cond. Matter , 2016. |
S Knudde and G Farinha and D C Leitao and R Ferreira and S Cardoso and P P Freitas AlOx barrier growth in magnetic tunnel junctions for sensor applications (article) Journal of Magnetism and Magnetic Materials , 2016. |
M Romera and P Talatchian and R Lebrun and K J Merazzo and P Bortolotti and L Vila and J D Costa and R Ferreira and P P Freitas and M C Cyrille and U Ebels and V Cros and J Grollier Enhancing the injection locking range of spin torque oscillators through mutual coupling (article) Applied Physics Letters , 2016. |
E Paz and R Ferreira and P P Freitas IEEE Transactions on Magnetics , 2016. |
P P Freitas and R Ferreira and S Cardoso Spintronic Sensors (article) Proceedings of the IEEE , 2016. |
Batra Costa N M P M F J E. A. Anumol A. N. Enyashin and Francis Leonard Deepak Structural and chemical analysis of gadolinium halides encapsulated within WS2 nanotubes (article) Nanoscale , 2016. |
Francis Leonard Deepak and A N Enyashin Capillary Imbibition of Gadolinium Halides into WS2 Nanotubes: A Molecular Dynamics View (article) Isr. J. Chem. , 2016. |
Zhongchang Wang Junjie Li Qiang Li and Francis Leonard Deepak Real-Time Dynamical Observation of Lattice Induced Nucleation and Growth in Interfacial Solid-Solid Phase Transitions (article) Cryst. Growth Des., Just Accepted Manuscript , 2016. |
Francis Leonard Deepak Conxita Solans Rekha Goswami Shrestha Jonathan Hill Katsuhiko Ariga Lok Kumar Shrestha P J. Rodrigo Magana Yury V. Kolen’ko and Carlos Rodriguez-Abreu From Chromonic Self-Assembly to Hollow Carbon Nanofibers for Efficient Materials in Supercapacitor and Vapor Sensing Applications (article) ACS Applied Materials & Interfaces , 2016. |
S. I. Ravelo Arias and D. Ramírez Muñoz and S. Cardoso and R. Ferreira and P. P. Freitas Note: A non-invasive electronic measurement technique to measure the embedded four resistive elements in a Wheatstone bridge sensor (article) Review of Scientific Instruments AIP Publishing , 2015. |
A. Ravelo and I. Sergio and D. Ramirez and S. Cardoso and R. Ferreira and P. P. Freitas Total ionizing dose (TID) evaluation of magnetic tunnel junction (MTJ) current sensors (article) Sensors and Actuators a-Physical , 2015. |
J. Valadeiro and J. Amaral and D. C. Leitao and R. Ferreira and S. Cardoso and P. P. Freitas Strategies for pTesla Field Detection Using Magnetoresistive Sensors With a Soft Pinned Sensing Layer (article) IEEE Trans. Magn , 2015. |
S. Sievers and N. Liebing and S. Serrano-Guisan and R. Ferreira and E. Paz and A. Caprile and A. Manzin and M. Pasquale and W. Skowronski and T. Stobiecki and K. Rott and G. Reiss and J. Langer and B. Ocker and H. W. Schumacher Toward Wafer Scale Inductive Characterization of Spin-Transfer Torque Critical Current Density of Magnetic Tunnel Junction Stacks (article) IEEE Trans. Magn , 2015. |
A. Caprile and A. Manzin and M. Coisson and M. Pasquale and H. W. Schumacher and N. Liebing and S. Sievers and R. Ferreira and S. Serrano-Guisan and E. Paz Static and Dynamic Analysis of Magnetic Tunnel Junctions With Wedged MgO Barrier (article) IEEE Trans. Magn , 2015. |
V. Silvérioa and S. Cardosob and J. Gaspard and P. P. Freitas and A. L. N. Moreiraa Design, fabrication and test of an integrated multi-microchannel heat sink for electronics cooling (article) Sensors and Actuactors A, Physical , 2015. |
J. D. Costa and S. Serrano-Guisan and J. Borme and F. L. Deepak and M. Tarequzzaman and E. Paz and J. Ventura and R. Ferreira and P. P. Freitas Impact of MgO Thickness on the Performance of Spin-Transfer Torque Nano-Oscillators (article) IEEE Transactions on Magnetics , 2015. |
M. Costa and J. Gaspar and R. Ferreira and E. Paz and H. Fonseca and M. Martins and S. Cardoso and P. P. Freitas Integration of magnetoresistive sensors with atomic force microscopy cantilevers for scanning magnetoresistance microscopy applications (article) IEEE Transactions on Magnetics , 2015. |
A. V. Silva and D. C. Leitao and J. Valadeiro and J. Amaral and P. P. Freitas and S. Cardoso Linearization strategies for high sensitivity magnetoresistive sensors (article) Eur. Phys. J. Appl. Phys. , 2015. |
D. Couto and R. Sousa and L. Andrade and M. Leander and M. A. Lopez-Quintela and J. Rivas and P. P. Freitas and M. Lima and G. Porto and B. Porto and F. Carvalho and E. Fernandes Polyacrylic acid coated and non-coated iron-oxide nanoparticles are not genotoxic to human T-lymphocites (article) Toxicology Letters , 2015. |
D. C. Leitao and A. V. Silva and E. Paz and R. Ferreira and S. Cardoso and P. P. Freitas Magnetoresistive nanosensors: controlling magnetism at the nanoscale (article) Nanotechnology , 2015. |
P.M.P. Salomé, H. Rodriguez-Alvarez, S. Sadewasser Incorporation of alkali metals in chalcogenide solar cells (article) Solar Energy Materials & Solar Cells , 2015. |
Lifeng Liu Mater. Lett. , 2015. |
JL Lado, V Pardo Phys. Rev. B , 2015. |
Piotr Szaniawski, Pedro Salomé, Viktor Fjällström, Tobias Törndaht, Uwe Zimmermann, Marika Edoff Influence of varying Cu content on growth and performance of Ga-graded Cu(In,Ga)Se2 solar Cells (article) IEEE J. PV , 2015. |
Enrique Carbo-Argibay, X.Q. Bao, C. Rodriguez, M. Fatima Cerqueira, D. Y. Petrovykh, Lifeng Liu, Y. V. Kolen’ko J. Colloid. Interf. Sci. , 2015. |
Y. Chen, Lifeng Liu, J. Xiong,* Y. Qin, C.L. Yan*, Adv. Energy Mater , 2015. |
R. E. Sousa, M. Kundu, A. Goren, M. M. Silva, Lifeng Liu, C. M. Costa, S. Lanceros-Mendez RSC Adv , 2015. |
José Luis Lado, Xiaoguang Wang, Elvira Paz, Enrique Carbó-Argibay, Noelia Guldris, Carlos Rodríguez-Abreu, Lifeng Liu, Kirill Kovnir, Yury V Kolen’ko Design and Synthesis of Highly Active Al–Ni–P Foam Electrode for Hydrogen Evolution Reaction (article) ACS Catalysis , 2015. |
X.Q. Bao, D. Petrovykh, P. Alpuim, D. Stroppa, N. Guldris, M. Costa, H. Fonseca, J. Gaspar, C.H. Jin, Lifeng Liu* Nano Energy , 2015. |
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X.G. Wang, Y.V. Kolen’ko, X.Q. Bao, K. Kovnir, Lifeng Liu, Angew. Chem. Int. Ed. 2015 , 2015. |
A. Abelenda, M. Sánchez, G.M. Ribeiro, P.A. Fernandes, P.M.P. Salomé, A.F. da Cunha, J.P. Leitão, M.I.N. da Silva, J.C. González Anomalous persistent photoconductivity in Cu2ZnSnS4 thin films and solar cells (article) Solar Energy Materials & Solar Cells , 2015. |
X.Y. Lu, J.W. Deng, W.P. Si, Lifeng Liu, C.L. Yan, S. Oswald, O.G. Schmidt Adv. Sci. 2015 , 2015. |
Xiao-Qing Bao, M. Fatima Cerqueira, Pedro Alpuim, Lifeng Liu,* Chem. Commun , 2015. |
F. Delgado, S. Loth, M. Zielinski, J. Fernández-Rossier The emergence of classical behavior in magnetic adatoms (article) Europhysics Letters , 2015. |
A. Ferrón, F. Delgado, J. Fernández-Rossier Derivation of spin Hamiltonians for Fe in MgO (article) New Journal of Physics , 2015. |
N. A. García, J. L. Lado , J. Fernández-Rossier Quantum Spin Hall phase in multilayer graphene (article) Phys. Rev. B , 2015. |
P. Potasz, J. Fernández-Rossier Orbital magnetization in Quantum Spin Hall nanoparticles (article) Nano Letters , 2015. |
J. L. Lado, N. A. García, J. Fernández-Rossier Edge states in graphene-like systems (article) Synthetic Metals , 2015. |
J. L. Lado , J. Fernández-Rossier Quantum Anomalous Hall effect in graphene coupled to skyrmions (article) Phys. Rev. B , 2015. |
B. Bryant, R. Toskovic, A. Ferrón, J. L. Lado, A. Spinelli. J. Fernández-Rossier, A. F. Otte Controlled complete suppression of Single-Atom Inelastic Spin and Orbital Cotunneling (article) Nano Letters , 2015. |
A. Ferrón, J. L. Lado, J. Fernández-Rossier Electronic properties of transition metals atoms on Cu2N/Cu(100 (article) Phys. Rev. B , 2015. |
P. San José, J. L. Lado, R. Aguado, F. Guinea, J. Fernández-Rossier Majorana zero modes in graphene (article) Phys. Rev. X , 2015. |
A. Roldán-Molina, M. J. Santander, A. S. Núñez, J. Fernández-Rossier Quantum fluctuations stabilize skyrmion textures (article) Phys. Rev. B , 2015. |
M. Kundu, Lifeng Liu* Mater. Lett. , 2015. |
X.G. Wang, Y.V. Ko’lenko, Lifeng Liu* Chem. Commun , 2015. |
M. Kundu, Lifeng Liu Electrospun porous nickel oxide nanofibers for high-performance electrochemical energy storage (article) Sci. Lett. J. , 2015. |
V. Fjällström, P. Szaniawski, B. Vermang, P.M.P. Salomé, F. Rostvall, U. Zimmermann and M.Edoff Recovery after potential induced degradation of Cu(In,Ga)Se2 solar cells with CdS and Zn(O,S) buffer layers (article) IEEE J. Photovoltaics , 2015. |
S. Majee, M.F. Cerqueira, D. Tondelier, J.C. Vanel, B. Geffroy, Y. Bonnassieux, P. Alpuim, J.E. Bourée Permeation barrier performance of Hot Wire-CVD grown silicon-nitride films treated by argon plasma (article) Thin Solid Films , 2015. |
S. Majee, M.F. Cerqueira, D. Tondelier, B. Geffroy, Y. Bonnassieux, P. Alpuim, J.E. Bourée Flexible organic–inorganic hybrid layer encapsulation for organic opto-electronic devices (article) Progress in Organic Coatings , 2015. |
H.F. Castro, E. Sowade, J.G. Rocha, P. Alpuim, A.V. Machado, R.R. Baumann, S. Lanceros-Méndez Degradation of all-inkjet-printed organic thin-film transistors with TIPS-pentacene under processes applied in textile manufacturing (article) Organic Electronics , 2015. |
Xiao-Qing Bao, M. Fatima Cerqueira, Pedro Alpuim, and Lifeng Liu Silicon Nanowire Arrays Coupled with Cobalt Phosphide Spheres as a Low-Cost Photocathode for Efficient Solar Hydrogen Evolution (article) Chemical Communications , 2015. |
Xiao-Qing Bao , Dmitri Y. Petrovykh, Pedro Alpuim, Daniel G. Stroppa, Noelia Guldris, Helder Fonseca, Margaret Costa, Joao Gaspar, Chuanhong Jin, Lifeng Liu Amorphous oxygen-rich molybdenum oxysulfide decorated p-type silicon microwire arrays for efficient photoelectrochemical water reduction (article) Nano Energy , 2015. |
P. Alpuim, S.Majee, M.F. Cerqueira, D. Tondelier, B. Geffroy, Y. Bonnassieux, J.E. Bourée Effect of argon ion energy on the performance of silicon nitride multilayer permeation barriers grown by hot-wire CVD on polymers (article) Thin Solid Films , 2015. |
James A. Gilbert and Nancy N. Kariuki and Xiaoping Wang and A. Jeremy Kropf and Kang Yu and Daniel J. Groom and Paulo J. Ferreira and Dane Morgan and Deborah J. Myers Pt Catalyst Degradation in Aqueous and Fuel Cell Environments studied via In-Operando Anomalous Small-Angle X-ray Scattering (article) Electrochimica Acta , 2015. |
Mallika Gummall and Sarah C. Ball and David A. Condit and Somaye Rasouli and Kang Yu and Paulo J Ferreira and Deborah J. Myers and Zhiwei Yang Effect of Particle Size and Operating Conditions on Pt3Co PEMFC Cathode Catalyst Durability (article) Catalysts , 2015. |
Francis Leonard Deepak, Manuel Bañobre-López, Enrique Carbó-Argibay, M. Fátima Cerqueira, Yolanda Piñeiro-Redondo, JoséRivas, Corey M. Thompson, Saeed Kamali, Carlos Rodríguez-Abreu, Kirill Kovnir, and Yury V. Kolenko A Systematic Study of the Structural and Magnetic Properties of Mn‑, Co‑, and Ni-Doped Colloidal Magnetite Nanoparticles (article) J. Phys. Chem C , 2015. |
David Buceta, Concha Tojo, Miomir Vukmirovic, Francis Leonard Deepak, Arturo M. Lopez-Quintela Controlling Bimetallic Nanostructures by the Microemulsion Method with Subnanometer Resolution Using a Prediction Model (article) Langmuir , 2015. |
Eunice Cunha, M. Fernanda Proença, Florinda Costa, António J. Fernandes, Marta A. C. Ferro, Paulo E. C. Lopes, Mariam Debs, Manuel Melle-Franco, Francis Leonard Deepak, Maria C. Paiva Self-assembled functionalized graphene nanoribbons from carbon nanotubes (article) ChemistryOpen , 2015. |
Maryam Salimian, Maxim Ivanov, Francis Leonard Deepak, Dmitri Petrovykh, Igor Bdikin, Marta Ferro, Andre Kholkin, Elby Titus and Gil Goncalves Synthesis and characterization of reduced graphene oxide /spiky nickel nanocomposites for nanoelectronic applications (article) J. Mater. Chem. C , 2015. |
R. Pilot, A. Zoppi, S. Trigari, F. L. Deepak, E. Giorgettib and R. Bozioa Wavelength dispersion of the local field intensity in silver–gold nanocages (article) Phys.Chem.Chem.Phys. , 2015. |
Nitin M Batra, Shashikant P Patole, Ahmed Abdelkader, Dalaver H Anjum, Francis L Deepak and Pedro M F J Costa Structural changes of electron and ion beam-deposited contacts in annealed carbon-based electrical devices (article) Nanotechnology , 2015. |
J. D. Costa, S. Serrano-Guisan, J. Borme, F. L. Deepak, M. Tarequzzaman, E. Paz, J.Ventura, R. Ferreira and P.P. Freitas Impact of MgO thickness on the performance of Spin Transfer Torque Nano-Oscillators (article) IEEE Trans. Magn , 2015. |
James A. Gilbert and A. Jeremy Kropf and Nancy N. Kariuki and Stacy DeCrane and Xiaoping Wang and Somaye Rasouli and Kang Yu and Paulo J. Ferreira and Dane Morgan and Deborah J. Myers In-Operando Anomalous Small-Angle X-Ray Scattering Investigation of Pt3Co Catalyst Degradation in Aqueous and Fuel Cell Environments (article) Journal of the Electrochemical Society , 2015. |
Sadewasser S P.M.P. Salomé H. Rodriguez-Alvarez Incorporation of alkali metals in chalcogenide solar cells (article) Solar Energy Materials & Solar Cells , 2015. |
Lifeng Liu Mater. Lett. , 2015. |
Pardo V JL Lado Phys. Rev. B , 2015. |
Viktor Fjällström Tobias Törndaht Uwe Zimmermann Marika Edoff Piotr Szaniawski Pedro Salomé Influence of varying Cu content on growth and performance of Ga-graded Cu(In,Ga)Se2 solar Cells (article) IEEE J. PV , 2015. |
Rodriguez Fatima Cerqueira Petrovykh Lifeng Liu Kolen’ko C M D Y Y V Enrique Carbo-Argibay X.Q. Bao J. Colloid. Interf. Sci. , 2015. |
Xiong Qin Yan* J * Y C L Y. Chen Lifeng Liu Adv. Energy Mater , 2015. |
Goren Silva Lifeng Liu Costa Lanceros-Mendez A M M C M S R. E. Sousa M. Kundu RSC Adv , 2015. |
Elvira Paz Enrique Carbó-Argibay Noelia Guldris Carlos Rodríguez-Abreu Lifeng Liu Kirill Kovnir Yury Kolen’ko V José Luis Lado Xiaoguang Wang Design and Synthesis of Highly Active Al–Ni–P Foam Electrode for Hydrogen Evolution Reaction (article) ACS Catalysis , 2015. |
Alpuim Stroppa Guldris Costa Fonseca Gaspar Jin Lifeng Liu* P D N M H J C H X.Q. Bao D. Petrovykh Nano Energy , 2015. |
Paz Carbo-Argibay Rodriguez-Abreu Lifeng Liu Kovnir Kolen’ko E E C K Y V .L. Lado X.G. Wang Design and synthesis of a novel highly active Al-Ni-P foam electrode for hydrogen evolution reaction (article) ACS Catalysis , 2015. |
James A Gilbert and Nancy N Kariuki and Xiaoping Wang and Jeremy A Kropf and Kang Yu and Daniel J Groom and Paulo J Ferreira and Dane Morgan and Deborah J Myers Pt Catalyst Degradation in Aqueous and Fuel Cell Environments studied via In-Operando Anomalous Small-Angle X-ray Scattering (article) Electrochimica Acta , 2015. |
Bao Kovnir Lifeng Liu X Q K X.G. Wang Y.V. Kolen’ko Angew. Chem. Int. Ed. 2015 , 2015. |
Ribeiro Fernandes Salomé Cunha Leitão Silva González G M P A P M P A F J P M I N J C da da A. Abelenda M. Sánchez Anomalous persistent photoconductivity in Cu2ZnSnS4 thin films and solar cells (article) Solar Energy Materials & Solar Cells , 2015. |
Ravelo S I Arias and Ramírez D Muñoz and S Cardoso and R Ferreira and P P Freitas Note: A non-invasive electronic measurement technique to measure the embedded four resistive elements in a Wheatstone bridge sensor (article) Review of Scientific Instruments AIP Publishing , 2015. |
Mallika Gummall and Sarah C Ball and David A Condit and Somaye Rasouli and Kang Yu and Paulo J Ferreira and Deborah J Myers and Zhiwei Yang Effect of Particle Size and Operating Conditions on Pt3Co PEMFC Cathode Catalyst Durability (article) Catalysts , 2015. |
Si Lifeng Liu Yan Oswald Schmidt W P C L S O G X.Y. Lu J.W. Deng Adv. Sci. 2015 , 2015. |
Pedro Alpuim Lifeng Liu * Xiao-Qing Bao M. Fatima Cerqueira Chem. Commun , 2015. |
Zielinski Fernández-Rossier M J F. Delgado S. Loth The emergence of classical behavior in magnetic adatoms (article) Europhysics Letters , 2015. |
Fernández-Rossier J A. Ferrón F. Delgado Derivation of spin Hamiltonians for Fe in MgO (article) New Journal of Physics , 2015. |
Fernández-Rossier J N. A. García J. L. Lado Quantum Spin Hall phase in multilayer graphene (article) Phys. Rev. B , 2015. |
Fernández-Rossier J P. Potasz Orbital magnetization in Quantum Spin Hall nanoparticles (article) Nano Letters , 2015. |
Fernández-Rossier J J. L. Lado N. A. García Edge states in graphene-like systems (article) Synthetic Metals , 2015. |
Fernández-Rossier J J. L. Lado Quantum Anomalous Hall effect in graphene coupled to skyrmions (article) Phys. Rev. B , 2015. |
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Kang Yu and Daniel J. Groom and Xiaoping Wang and Zhiwei Yang and Mallika Gummall and Sarah C. Ball and Deborah J. Myers and Paulo J. Ferreira Degradation Mechanisms of Platinum Nanoparticle Catalysts in Proton Exchange Membrane Fuel Cells: The Role of Particle Size (article) Microscopy and Microanalysis , 2014. |
M. A. Asoro and P. J. Ferreira and D. Kovar In Situ TEM and STEM Studies of Sintering of Ag and Pt Nanoparticles (article) Acta Materialia , 2014. |
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Kang Yu and Daniel J Groom and Xiaoping Wang and Zhiwei Yang and Mallika Gummall and Sarah C Ball and Deborah J Myers and Paulo J Ferreira Degradation Mechanisms of Platinum Nanoparticle Catalysts in Proton Exchange Membrane Fuel Cells: The Role of Particle Size (article) Microscopy and Microanalysis , 2014. |
M A Asoro and P J Ferreira and D Kovar In Situ TEM and STEM Studies of Sintering of Ag and Pt Nanoparticles (article) Acta Materialia , 2014. |
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Ricardo Ferreira Elvira Paz Francis Leonard Deepak Susana Cardoso Ana V. Silva Diana C. Leitao and Paulo P Freitas Linear nanometric tunnel junction sensors with exchange pinned sensing layer (article) Journal of Applied Physics , 2014. |
Ana Silva Anastasiia Moskaltsova Simon Knudde Francis Deepak Ricardo Ferreira Susana Cardoso V L Diana C. Leitao Elvira Paz and Paulo P Freitas Nanoscale Magnetic Tunnel Junction sensing devices with soft pinned sensing layer and low aspect ratio (article) IEEE Transactions on Magnetics , 2014. |
E. Paz and S. Serrano-Guisan and R. Ferreira and P. P. Freitas Room temperature direct detection of low frequency magnetic fields in the 100 pT/Hz(0.5) range using large arrays of magnetic tunnel junctions (article) J. App. Phys. , 2013. |
A. Silva and D. Leitao and Z. Huo and R. Macedo and R. Ferreira and E. Paz and F. L. Deepak and S. Cardoso and P. P. Freitas Switching Field Variation in MgO Magnetic Tunnel Junction Nanopillars: Experimental Results and Micromagnetic Simulations (article) IEEE Trans. Magn , 2013. |
A. Lopes and S. Cardoso and R. Ferreira and E. Paz and F. L. Deepak and J. Sanchez and D. Ramirez and S. Ravelo and P. P. Freitas MgO Magnetic Tunnel Junction Electrical Current Sensor With Integrated Ru Thermal Sensor (article) IEEE Trans. Magn , 2013. |
J. Amaral and V. Pinto and T. Costa and J. Gaspar and R. Ferreira and E. Paz and S. Cardoso and P. P. Freitas Integration of TMR Sensors in Silicon Microneedles for Magnetic Measurements of Neurons (article) IEEE Trans. Magn , 2013. |
S. Cardoso and L. Gameiro and D. C. Leitao and F. Cardoso and R. Ferreira and E. Paz and P. P. Freitas and U. Schmid and J. Aldavero and M. LeesterSchaede Magnetic tunnel junction sensors with pTesla sensitivity for biomedical imaging (article) Smart Sensors, Actuators, and Mems , 2013. |
F. Delgado and K. Lopez and R. Ferreira and J. Fernández-Rossier Intrinsic Spin Noise in MgO Magnetic Tunnel Junctions (article) Appl. Phys. Lett. , 2013. |
N. Liebing and S. Serrano-Guisan and P. Krzysteczko and K. Rott and G. Reiss and J. Langer and B. Ocker and H. W. Schumacher Tunneling magneto thermocurrent in CoFeB/MgO/CoFeB based magnetic tunnel junctions (article) Applied Physics Letters AIP Publishing , 2013. |
Lifeng Liu Nanscale , 2013. |
H. Rodriguez-Alvarez, R. Mainz, R. Caballero, D. Abou-Ras, M. Klaus, S. Gledhill, A. Weber, C. A. Kaufmann, H.-W. Schock Real-time study of Ga diffusion processes during the formation of Cu(In,Ga)Se2: the role of Cu and Na content (article) Sol. Energy Mat. Sol. Cells , 2013. |
Manab Kundu, Lifeng Liu J. Power Sources , 2013. |
H. Rodriguez-Alvarez, N. Barreau, C.A. Kaufmann, A. Weber, M. Klaus, T. Painchaud, H.-W. Schock, R. Mainz Recrystallization of Cu(In,Ga)Se2 thin films studied by X-ray diffraction (article) Acta Materialia , 2013. |
H. Rodriguez-Alvarez, A. Weber, J. Lauche, C. A. Kaufmann, T. Rissom, D. Greiner, M. Klaus, T. Unold, C. Genzel, H.-W. Schock, R. Mainz Formation of CuInSe2 and Cu(In,Ga)Se2 thin-films by three thermal co-evaporation: a real-time X-ray diffraction and fluorescence study (article) Adv. Energy Mater , 2013. |
Th. Dittrich, A. Gonzáles, T. Rada, T. Rissom , E. Zillner, S. Sadewasser, M.Ch. Lux-Steiner Comparative study of Cu(In,Ga)Se2 / CdS and Cu(In,Ga)Se2 / In2S3 systems by surface photovoltage techniques (article) Thin Solid Films , 2013. |
Daoai Wang, Lianbing Zhang, Woo Lee, Mato Knez, Lifeng Liu Novel three-dimensional nanoporous alumina as a template for hierarchical TiO2 nanotube arrays (article) Small , 2013. |
Lifeng Liu Porous Co16S16O96 nanosheets as a new electrode material for use in supercapacitors (article) J. Power Sources , 2013. |
Stanislav M., Daijiro Nozaki, Claudia Gomes da Rocha, Jhon W. González, Myeong H. Lee, Rafael Gutierrez, and Gianaurelio Cuniberti Dynamic and electronic transport properties of DNA translocation through graphene nanopores Avdoshenko (article) Nano letters , 2013. |
F. Delgado, K. López, R. Ferreira, J. Fernández-Rossier Intrinsic spin noise in MgO magnetic tunnel junctions (article) Applied Physics Letters , 2013. |
J. W. González, F. Delgado, J. Fernández-Rossier Graphene Single electron Transistor as a spin sensor for magnetic adsorbates (article) Phys. Rev. B , 2013. |
K. Kosmider, J. Fernández-Rossier Electronic properties of the MoS2-WS2 heterojunction (article) Phys. Rev. B , 2013. |
C. Sabater, D. Gosálbez, J. Fernández-Rossier, J. G. Rodrigo, C. Untiedt and J. J. Palacios Topologically Protected Quantum Transport in Locally Exfoliated Bismuth at Room Temperature (article) Phys. Rev. Lett. , 2013. |
J. Fernández-Rossier, Single atom devices: Quantum Engineering (article) Nature Materials , 2013. |
J. L. Lado, J. W. González, J. Fernández-Rossier Quantum Hall effect in gapped graphene heterojunctions (article) Phys. Rev. B , 2013. |
S. Fratini, D. Gosálbez, P. Merodio-Camara, J. Fernández-Rossier Anisotropic intrinsic spin relaxation in graphene (article) Phys. Rev. B , 2013. |
F. Deldado, C. D. Batista, J. Fernández-Rossier Local probe of fractional edge states of S=1 Heisenberg spin chains (article) Phys. Rev. Lett. , 2013. |
K. Kosmider, J. W. González, J. Fernández-Rossier Large spin splitting in the conduction band of transition metal dichalcogenide monolayers (article) Phys. Rev. B , 2013. |
V. Correia, V. Sencadas, M.S. Martins, C. Ribeiro, P. Alpuim, J.G. Rocha, I. Morales, C. Atienza, S. Lanceros-Mendez Piezoresistive sensors for force mapping of hip-prostheses (article) Sensors and Actuators A , 2013. |
S. Majee, M.F. Cerqueira, D. Tondelier, B. Geffroy, Y. Bonnassieux, P. Alpuim, J.E. Bourée The effect of argon plasma treatment on the permeation barrier properties of silicon nitride layers (article) Surface & Coatings Technology , 2013. |
Karalee A. Jarvis and Chih-Chieh Wang and Arumugam Manthiram and Paulo J. Ferreira The role of composition in the atomic structure, oxygen loss, and capacity of layered Li–Mn–Ni oxide cathodes (article) Journal of Materials Chemistry A , 2013. |
Chih-Chieh Wang and Karalee A. Jarvis and Paulo J. Ferreira and Arumugam Manthiram Effect of synthesis conditions on the first charge and reversible capacities of lithium-rich layered Oxides (article) Chemistry of Materials , 2013. |
Linjun Cao and K. J. Ganesh and Lijuan Zhang and Oliver Aubel and Christian Hennesthal and Meike Hauschildt and Paulo J. Ferreira and Paul S. Ho Grain structure analysis and effect on electromigration reliability in nanoscale Cu interconnects (article) Applied Physics Letters , 2013. |
J. T. Graham and G.L. Brennecka and P.J. Ferreira and L. Small and D. Duquette and C. Apblett and S. Landsberger and J.F. Ihlefeld Neutron irradiation effects on domain wall mobility and reversibility in lead zirconate titanate thin films (article) Journal of Applied Physics , 2013. |
A. Darbal and K. J. Ganesh and X. Liu and S.-B. Lee and J. Ledonne and T. Sun and B. Yao and A. P. Warren and G. S. Rohrer and A. D. Rollett and P. J. Ferreira and K. R. Coffey and K. Barmak Grain Boundary Character Distribution of Nanocrystalline Cu Thin Films Using Stereological Analysis of Transmission Electron Microscope Orientation Maps (article) Microscopy and Microanalysis , 2013. |
B. Patrick and H. Ham and Y. Shao-Horn and L. Allard and G. Hwang and P.J. Ferreira Atomic Structure and Composition of “Pt3Co” Nanocatalysts in Fuel Cells: An Aberration-Corrected STEM HAADF Study (article) American Chemical Society , 2013. |
Karalee A Jarvis and Chih-Chieh Wang and Arumugam Manthiram and Paulo J Ferreira The role of composition in the atomic structure, oxygen loss, and capacity of layered Li–Mn–Ni oxide cathodes (article) Journal of Materials Chemistry A , 2013. |
E Paz and S Serrano-Guisan and R Ferreira and P P Freitas Room temperature direct detection of low frequency magnetic fields in the 100 pT/Hz(0.5) range using large arrays of magnetic tunnel junctions (article) J. App. Phys. , 2013. |
Lifeng Liu Nanscale , 2013. |
Caballero Abou-Ras Klaus Gledhill Weber Kaufmann Schock R D M S A C A H -W H. Rodriguez-Alvarez R. Mainz Real-time study of Ga diffusion processes during the formation of Cu(In,Ga)Se2: the role of Cu and Na content (article) Sol. Energy Mat. Sol. Cells , 2013. |
Lifeng Liu Manab Kundu J. Power Sources , 2013. |
A Silva and D Leitao and Z Huo and R Macedo and R Ferreira and E Paz and F L Deepak and S Cardoso and P P Freitas Switching Field Variation in MgO Magnetic Tunnel Junction Nanopillars: Experimental Results and Micromagnetic Simulations (article) IEEE Trans. Magn , 2013. |
A Lopes and S Cardoso and R Ferreira and E Paz and F L Deepak and J Sanchez and D Ramirez and S Ravelo and P P Freitas MgO Magnetic Tunnel Junction Electrical Current Sensor With Integrated Ru Thermal Sensor (article) IEEE Trans. Magn , 2013. |
J Amaral and V Pinto and T Costa and J Gaspar and R Ferreira and E Paz and S Cardoso and P P Freitas Integration of TMR Sensors in Silicon Microneedles for Magnetic Measurements of Neurons (article) IEEE Trans. Magn , 2013. |
Chih-Chieh Wang and Karalee A Jarvis and Paulo J Ferreira and Arumugam Manthiram Effect of synthesis conditions on the first charge and reversible capacities of lithium-rich layered Oxides (article) Chemistry of Materials , 2013. |
Kaufmann Weber Klaus Painchaud Schock Mainz C A A M T H -W R H. Rodriguez-Alvarez N. Barreau Recrystallization of Cu(In,Ga)Se2 thin films studied by X-ray diffraction (article) Acta Materialia , 2013. |
Lauche Kaufmann Rissom Greiner Klaus Unold Genzel Schock Mainz J C A T D M T C H -W R H. Rodriguez-Alvarez A. Weber Formation of CuInSe2 and Cu(In,Ga)Se2 thin-films by three thermal co-evaporation: a real-time X-ray diffraction and fluorescence study (article) Adv. Energy Mater , 2013. |
S Cardoso and L Gameiro and D C Leitao and F Cardoso and R Ferreira and E Paz and P P Freitas and U Schmid and J Aldavero and M LeesterSchaede Magnetic tunnel junction sensors with pTesla sensitivity for biomedical imaging (article) Smart Sensors, Actuators, and Mems , 2013. |
Rada Rissom Zillner Sadewasser M.Ch. Lux-Steiner T T E S Th. Dittrich A. Gonzáles Comparative study of Cu(In,Ga)Se2 / CdS and Cu(In,Ga)Se2 / In2S3 systems by surface photovoltage techniques (article) Thin Solid Films , 2013. |
Linjun Cao and K J Ganesh and Lijuan Zhang and Oliver Aubel and Christian Hennesthal and Meike Hauschildt and Paulo J Ferreira and Paul S Ho Grain structure analysis and effect on electromigration reliability in nanoscale Cu interconnects (article) Applied Physics Letters , 2013. |
Woo Lee Mato Knez Lifeng Liu Daoai Wang Lianbing Zhang Novel three-dimensional nanoporous alumina as a template for hierarchical TiO2 nanotube arrays (article) Small , 2013. |
J T Graham and G L Brennecka and P J Ferreira and L Small and D Duquette and C Apblett and S Landsberger and J F Ihlefeld Neutron irradiation effects on domain wall mobility and reversibility in lead zirconate titanate thin films (article) Journal of Applied Physics , 2013. |
Lifeng Liu Porous Co16S16O96 nanosheets as a new electrode material for use in supercapacitors (article) J. Power Sources , 2013. |
Claudia Gomes Rocha Jhon González Myeong Lee Rafael Gutierrez W H da Stanislav M. Daijiro Nozaki and Gianaurelio Cuniberti Dynamic and electronic transport properties of DNA translocation through graphene nanopores Avdoshenko (article) Nano letters , 2013. |
Ferreira Fernández-Rossier R J F. Delgado K. López Intrinsic spin noise in MgO magnetic tunnel junctions (article) Applied Physics Letters , 2013. |
Fernández-Rossier J J. W. González F. Delgado Graphene Single electron Transistor as a spin sensor for magnetic adsorbates (article) Phys. Rev. B , 2013. |
Fernández-Rossier J K. Kosmider Electronic properties of the MoS2-WS2 heterojunction (article) Phys. Rev. B , 2013. |
Fernández-Rossier Rodrigo Untiedt J J G C C. Sabater D. Gosálbez and J J Palacios Topologically Protected Quantum Transport in Locally Exfoliated Bismuth at Room Temperature (article) Phys. Rev. Lett. , 2013. |
J. Fernández-Rossier Single atom devices: Quantum Engineering (article) Nature Materials , 2013. |
Fernández-Rossier J J. L. Lado J. W. González Quantum Hall effect in gapped graphene heterojunctions (article) Phys. Rev. B , 2013. |
Merodio-Camara Fernández-Rossier P J S. Fratini D. Gosálbez Anisotropic intrinsic spin relaxation in graphene (article) Phys. Rev. B , 2013. |
Fernández-Rossier J F. Deldado C. D. Batista Local probe of fractional edge states of S=1 Heisenberg spin chains (article) Phys. Rev. Lett. , 2013. |
Fernández-Rossier J K. Kosmider J. W. González Large spin splitting in the conduction band of transition metal dichalcogenide monolayers (article) Phys. Rev. B , 2013. |
A Darbal and K J Ganesh and X Liu and S -B Lee and J Ledonne and T Sun and B Yao and A P Warren and G S Rohrer and A D Rollett and P J Ferreira and K R Coffey and K Barmak Grain Boundary Character Distribution of Nanocrystalline Cu Thin Films Using Stereological Analysis of Transmission Electron Microscope Orientation Maps (article) Microscopy and Microanalysis , 2013. |
F Delgado and K Lopez and R Ferreira and J Fernández-Rossier Intrinsic Spin Noise in MgO Magnetic Tunnel Junctions (article) Appl. Phys. Lett. , 2013. |
B Patrick and H Ham and Y Shao-Horn and L Allard and G Hwang and P J Ferreira Atomic Structure and Composition of “Pt3Co” Nanocatalysts in Fuel Cells: An Aberration-Corrected STEM HAADF Study (article) American Chemical Society , 2013. |
N Liebing and S Serrano-Guisan and P Krzysteczko and K Rott and G Reiss and J Langer and B Ocker and H W Schumacher Tunneling magneto thermocurrent in CoFeB/MgO/CoFeB based magnetic tunnel junctions (article) Applied Physics Letters AIP Publishing , 2013. |
Martins Ribeiro Alpuim Rocha Morales Atienza Lanceros-Mendez M S C P J G I C S V. Correia V. Sencadas Piezoresistive sensors for force mapping of hip-prostheses (article) Sensors and Actuators A , 2013. |
Tondelier Geffroy Bonnassieux Alpuim Bourée D B Y P J E S. Majee M.F. Cerqueira The effect of argon plasma treatment on the permeation barrier properties of silicon nitride layers (article) Surface & Coatings Technology , 2013. |
S. Arias and D. Munoz and J. Moreno and S. Cardoso and R. Ferreira and P. P. Freitas Fractional Modeling of the AC Large-Signal Frequency Response in Magnetoresistive Current Sensors (article) Sensors , 2012. |
J. Ventura and J. M. Teixeira and E. Paz and J. S. Amaral and J. D. Costa and J. P. Araujo and S. Cardoso and R. Ferreira and P. P. Freitas The influence of annealing on the bimodal distribution of blocking temperatures of exchange biased bilayers (article) Phys. Status Solidi RRL , 2012. |
R. Ferreira and E. Paz and P. P. Freitas and J. Wang and S. Xue Large Area and Low Aspect Ratio Linear Magnetic Tunnel Junctions with a Soft-Pinned Sensing Layer (article) IEEE Trans. Magn , 2012. |
R. Ferreira and E. Paz and P. P. Freitas and J. Ribeiro and J. Germano and L. Sousa IEEE Trans. Magn , 2012. |
J. Sanchez and D. Ramirez and S. Ravelo and A. Lopes and S. Cardoso and R. Ferreira and P. P. Freitas Electrical Characterization of a Magnetic Tunnel Junction Current Sensor for Industrial Applications (article) IEEE Trans. Magn , 2012. |
R. J. Janeiro and L. Gameiro and A. Lopes and S. Cardoso and R. Ferreira and E. Paz and P. P. Freitas Linearization and Field Detectivity in Magnetic Tunnel Junction Sensors Connected in Series Incorporating 16nm-thick NiFe Free Layers (article) IEEE Trans. Magn , 2012. |
J.R. O’Dea, L.M. Brown, N. Hoepker, J.A. Marohn, and S. Sadewasser Scanning probe microscopy of solar cells: From inorganic thin films to organic photovoltaics (article) Materials Research Society Bulletin , 2012. |
J. Bastek, N.A. Stolwijk, R. Wuerz, A. Eicke, J. Albert, and S. Sadewasser Zinc diffusion in polycrystalline Cu(In,Ga)Se2 and single-crystal CuInSe2 layers” (article) Appl. Phys. Lett. , 2012. |
S.S. Schmidt, D. Abou-Ras, S. Sadewasser, W. Yin, C. Feng, Y. Yan Electrostatic potentials at Cu(In,Ga)Se2 grain boundaries - experiment and simulations (article) Phys. Rev. Lett. , 2012. |
R. Baier, J. Lehmann, S. Lehmann, Th. Rissom, Ch.A. Kaufmann, A. Schwarzmann, Y. Rosenwaks, M.Ch. Lux-Steiner, and S. Sadewasser Electronic properties of grain boundaries in Cu(In,Ga)Se2 thin films with various Ga-contents (article) Sol. Energy Mat. Sol. Cells , 2012. |
F. Mesa, W. Chamorro, W. Vallejo, R. Baier, Th. Dittrich, A. Grimm, M.Ch. Lux-Steiner, and S. Sadewasser Junction formation of Cu3BiS3 investigated by Kelvin probe force microscopy and surface photovoltage measurements (article) Beilstein J. Nanotechnol , 2012. |
R. Baier, C. Leendertz, M.Ch. Lux-Steiner, and S. Sadewasser Towards quantitative Kelvin probe force microscopy of nanoscale potential distributions (article) Phys. Rev. B , 2012. |
A. S. Núñez, J. Fernández-Rossier Colossal Magnetic Anisotropy in Diluted Magnetic Topological Insulators (article) Solid State Communications , 2012. |
F. Delgado, J. Fernández-Rossier Storage of classical bits in quantum spins (article) Phys. Rev. Lett. , 2012. |
D. Soriano, J. Fernández-Rossier Interplay between sublattice and spin symmetry breaking in graphene (article) Phys. Rev. B. , 2012. |
D. Gosálbez, D. Soriano, J. J. Palacios, J. Fernández-Rossier Spin filtered edge states in graphene (article) Solid State Communications , 2012. |
F. Delgado, R. Aguado, J. Fernández-Rossier Probing a single nuclear spin in a Silicon Single Electron Transistor (article) Applied Physics. Lett. , 2012. |
J. W. González, J. Fernández-Rossier Impurity states in the quantum spin Hall phase in graphene (article) Physical Review B , 2012. |
L. Besombes, C. Cao, S. Jamet, H. Boukari, J. Fernández-Rossier Optical control of the spin state of two Mn atoms in a quantum dot (article) Physical Review B , 2012. |
S Arias and D Munoz and J Moreno and S Cardoso and R Ferreira and P P Freitas Fractional Modeling of the AC Large-Signal Frequency Response in Magnetoresistive Current Sensors (article) Sensors , 2012. |
J Ventura and J M Teixeira and E Paz and J S Amaral and J D Costa and J P Araujo and S Cardoso and R Ferreira and P P Freitas The influence of annealing on the bimodal distribution of blocking temperatures of exchange biased bilayers (article) Phys. Status Solidi RRL , 2012. |
R Ferreira and E Paz and P P Freitas and J Wang and S Xue Large Area and Low Aspect Ratio Linear Magnetic Tunnel Junctions with a Soft-Pinned Sensing Layer (article) IEEE Trans. Magn , 2012. |
R Ferreira and E Paz and P P Freitas and J Ribeiro and J Germano and L Sousa IEEE Trans. Magn , 2012. |
J Sanchez and D Ramirez and S Ravelo and A Lopes and S Cardoso and R Ferreira and P P Freitas Electrical Characterization of a Magnetic Tunnel Junction Current Sensor for Industrial Applications (article) IEEE Trans. Magn , 2012. |
R J Janeiro and L Gameiro and A Lopes and S Cardoso and R Ferreira and E Paz and P P Freitas Linearization and Field Detectivity in Magnetic Tunnel Junction Sensors Connected in Series Incorporating 16nm-thick NiFe Free Layers (article) IEEE Trans. Magn , 2012. |
Janeiro, R J; Gameiro, L; Lopes, A; Cardoso, S; Ferreira, R; Paz, E; Freitas, P P Linearization and Field Detectivity in Magnetic Tunnel Junction Sensors Connected in Series Incorporating 16nm-thick NiFe Free Layers (article) IEEE Trans. Magn , 2012. |
Hoepker Marohn N J A J.R. O’Dea L.M. Brown and S Sadewasser Scanning probe microscopy of solar cells: From inorganic thin films to organic photovoltaics (article) Materials Research Society Bulletin , 2012. |
Wuerz Eicke Albert R A J J. Bastek N.A. Stolwijk and S Sadewasser Zinc diffusion in polycrystalline Cu(In,Ga)Se2 and single-crystal CuInSe2 layers” (article) Appl. Phys. Lett. , 2012. |
Sadewasser Yin Feng Yan S W C Y S.S. Schmidt D. Abou-Ras Electrostatic potentials at Cu(In,Ga)Se2 grain boundaries - experiment and simulations (article) Phys. Rev. Lett. , 2012. |
Lehmann Th. Rissom Ch.A. Kaufmann Schwarzmann Rosenwaks M.Ch. Lux-Steiner S A Y R. Baier J. Lehmann and S Sadewasser Electronic properties of grain boundaries in Cu(In,Ga)Se2 thin films with various Ga-contents (article) Sol. Energy Mat. Sol. Cells , 2012. |
Vallejo Baier Th. Dittrich Grimm M.Ch. Lux-Steiner W R A F. Mesa W. Chamorro and S Sadewasser Junction formation of Cu3BiS3 investigated by Kelvin probe force microscopy and surface photovoltage measurements (article) Beilstein J. Nanotechnol , 2012. |
M.Ch. Lux-Steiner R. Baier C. Leendertz and S Sadewasser Towards quantitative Kelvin probe force microscopy of nanoscale potential distributions (article) Phys. Rev. B , 2012. |
Fernández-Rossier J A. S. Núñez Colossal Magnetic Anisotropy in Diluted Magnetic Topological Insulators (article) Solid State Communications , 2012. |
Fernández-Rossier J F. Delgado Storage of classical bits in quantum spins (article) Phys. Rev. Lett. , 2012. |
Fernández-Rossier J D. Soriano Interplay between sublattice and spin symmetry breaking in graphene (article) Phys. Rev. B. , 2012. |
Palacios Fernández-Rossier J J J D. Gosálbez D. Soriano Spin filtered edge states in graphene (article) Solid State Communications , 2012. |
Fernández-Rossier J F. Delgado R. Aguado Probing a single nuclear spin in a Silicon Single Electron Transistor (article) Applied Physics. Lett. , 2012. |
Fernández-Rossier J J. W. González Impurity states in the quantum spin Hall phase in graphene (article) Physical Review B , 2012. |
Jamet Boukari Fernández-Rossier S H J L. Besombes C. Cao Optical control of the spin state of two Mn atoms in a quantum dot (article) Physical Review B , 2012. |
R. Baier, D. Abou-Ras, Th. Rissom, M.Ch. Lux-Steiner, and S. Sadewasser Symmetry-dependence of electronic grain boundary properties in polycrystalline CuInSe2 thin films (article) Appl. Phys. Lett. , 2011. |
M. Afshar, S. Sadewasser, J. Albert, S. Lehmann, D. Abou-Ras, D. Fuertes Marrón, A.A. Rockett, E. Räsänen, and M.Ch. Lux-Steiner Chalcopyrite Semiconductors for Quantum Well Solar Cells (article) Advanced Energy Materials , 2011. |
Daoai Wang,* Lifeng Liu,* Fuxiang Zhang, Kun Tao, Eckhard Pippel, K. Domen, Nano Letters , 2011. |
F. Delgado, J. Fernández-Rossier Inelastic Electron tunneling spectroscopy of a single nuclear spin (article) Phys. Rev. Lett , 2011. |
C. Cao, L. Besombes, J. Fernández-Rossier Spin-phonon coupling in single Mn doped CdTe quantum dots (article) Physical Review B , 2011. |
Th. Rissom M.Ch. Lux-Steiner R. Baier D. Abou-Ras and S Sadewasser Symmetry-dependence of electronic grain boundary properties in polycrystalline CuInSe2 thin films (article) Appl. Phys. Lett. , 2011. |
Albert Lehmann Abou-Ras Fuertes Marrón Rockett Räsänen J S D D A A E M. Afshar S. Sadewasser and M.Ch. Lux-Steiner Chalcopyrite Semiconductors for Quantum Well Solar Cells (article) Advanced Energy Materials , 2011. |
Fuxiang Zhang Kun Tao Eckhard Pippel Domen * K Daoai Wang * Lifeng Liu Nano Letters , 2011. |
Fernández-Rossier J F. Delgado Inelastic Electron tunneling spectroscopy of a single nuclear spin (article) Phys. Rev. Lett , 2011. |
Fernández-Rossier J C. Cao L. Besombes Spin-phonon coupling in single Mn doped CdTe quantum dots (article) Physical Review B , 2011. |
M. Lopez-Garcia, J.F. Galisteo-Lopez, J.Sanchez-Marcos, A. Garcia-Martin, C.Lopez, Small , 2010. |
J.Sanchez-Marcos Garcia-Martin C.Lopez A M. Lopez-Garcia J.F. Galisteo-Lopez Small , 2010. |
Lifeng Liu, Xingsen Gao J. Nanosci. Lett. , 2004. |
Xingsen Gao Lifeng Liu J. Nanosci. Lett. , 2004. |
Publications
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2022
Pastrana C, Guerreiro JRL, Elumalai M, Carpena-Torres C, Crooke A, Carracedo G, Prado M, Huete-Toral F.
Dual-Mode Gold Nanoparticle-Based Method for Early Detection of Acanthamoeba Journal Article
International Journal of Molecular Sciences, 23 , pp. 14877, 2022.
@article{C2022,
title = {Dual-Mode Gold Nanoparticle-Based Method for Early Detection of Acanthamoeba},
author = {Pastrana C, Guerreiro JRL, Elumalai M, Carpena-Torres C, Crooke A, Carracedo G, Prado M, Huete-Toral F.},
url = {https://doi.org/10.3390/ijms232314877},
doi = {10.3390/ijms232314877},
year = {2022},
date = {2022-11-28},
journal = {International Journal of Molecular Sciences},
volume = {23},
pages = {14877},
abstract = {Acanthamoeba keratitis is an aggressive and rapidly progressing ocular pathology whose main risk factor is the use of contact lenses. An early and differential diagnosis is considered the main factor to prevent the progression and improve the prognosis of the pathology. However, current diagnosis techniques require time, complex and costly materials making an early diagnosis challenging. Thus, there is a need for fast, accessible, and accurate methods for Acanthamoeba detection by practitioners for timely and suitable treatment and even for contact lens user as preventive diagnosis. Here, we developed a dual-mode colorimetric-based method for fast, visual, and accurate detection of Acanthamoeba using gold nanoparticles (AuNPs). For this strategy, AuNPs were functionalized with thiolated probes and the presence of target Acanthamoeba genomic sequences, produce a colorimetric change from red to purple. This approach allows the detection of 0.02 and 0.009 μM of the unamplified Acanthamoeba genome by the naked eye in less than 20 min and by color analysis using a smartphone. Additionally, real samples were successfully analyzed showing the potential of the technology considering the lack of point-of-care tools that are mostly needed.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Acanthamoeba keratitis is an aggressive and rapidly progressing ocular pathology whose main risk factor is the use of contact lenses. An early and differential diagnosis is considered the main factor to prevent the progression and improve the prognosis of the pathology. However, current diagnosis techniques require time, complex and costly materials making an early diagnosis challenging. Thus, there is a need for fast, accessible, and accurate methods for Acanthamoeba detection by practitioners for timely and suitable treatment and even for contact lens user as preventive diagnosis. Here, we developed a dual-mode colorimetric-based method for fast, visual, and accurate detection of Acanthamoeba using gold nanoparticles (AuNPs). For this strategy, AuNPs were functionalized with thiolated probes and the presence of target Acanthamoeba genomic sequences, produce a colorimetric change from red to purple. This approach allows the detection of 0.02 and 0.009 μM of the unamplified Acanthamoeba genome by the naked eye in less than 20 min and by color analysis using a smartphone. Additionally, real samples were successfully analyzed showing the potential of the technology considering the lack of point-of-care tools that are mostly needed.Joana Carvalho, Andrey Ipatov, Laura Rodriguez-Lorenzo, Alejandro Garrido-Maestu, Sarah Azinheiro, Begoña Espiña, Jorge Barros-Velázquez, Marta Prado
Microchemical Journal, 183 , pp. 108115, 2022.
@article{Carvalho2022b,
title = {Towards on-site detection of gluten-containing cereals with a portable and miniaturized prototype combining isothermal DNA amplification and naked eye detection},
author = {Joana Carvalho, Andrey Ipatov, Laura Rodriguez-Lorenzo, Alejandro Garrido-Maestu, Sarah Azinheiro, Begoña Espiña, Jorge Barros-Velázquez, Marta Prado},
url = {https://doi.org/10.1016/j.microc.2022.108115.},
doi = {10.1016/j.microc.2022.108115.},
year = {2022},
date = {2022-11-09},
journal = {Microchemical Journal},
volume = {183},
pages = {108115},
abstract = {Miniaturization enables the development of portable devices for rapid on-site DNA analysis, providing cheaper and more convenient systems for target DNA detection in resource-limited settings. Miniaturized devices for DNA-based analysis are highly promising analytical tools for different aims, in particular for food quality and safety analysis in the different points of the food value chain DNA amplification is a key step for the development of highly specific and sensitive detection platforms. Although PCR remains the most widely adopted DNA amplification technique, interest for isothermal DNA amplification approaches, such as loop-mediated isothermal amplification (LAMP) and recombinase polymerase amplification (RPA), has grown exponentially when considering miniaturization. In this work, a portable and miniaturized prototype has been developed to perform isothermal DNA amplification by LAMP and RPA, containing an integrated heating system, and including naked-eye detection, therefore not requiring any additional equipment for the amplification reactions. Prototype performance was evaluated and successfully demonstrated for these amplification techniques, with different detection chemistries being explored. As a proof-of-concept, performance of the integrated heating system was compared to conventional equipment for the detection of gluten-containing cereals in food products, showing similar results in terms of amplification time, specificity, and sensitivity. Amplification by RPA achieved the lowest detectable concentration, presenting a limit of detection of 0.0180 ng µL-1, being more sensitive than LAMP by one order of magnitude, and enabling amplification in less than 20 min.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Miniaturization enables the development of portable devices for rapid on-site DNA analysis, providing cheaper and more convenient systems for target DNA detection in resource-limited settings. Miniaturized devices for DNA-based analysis are highly promising analytical tools for different aims, in particular for food quality and safety analysis in the different points of the food value chain DNA amplification is a key step for the development of highly specific and sensitive detection platforms. Although PCR remains the most widely adopted DNA amplification technique, interest for isothermal DNA amplification approaches, such as loop-mediated isothermal amplification (LAMP) and recombinase polymerase amplification (RPA), has grown exponentially when considering miniaturization. In this work, a portable and miniaturized prototype has been developed to perform isothermal DNA amplification by LAMP and RPA, containing an integrated heating system, and including naked-eye detection, therefore not requiring any additional equipment for the amplification reactions. Prototype performance was evaluated and successfully demonstrated for these amplification techniques, with different detection chemistries being explored. As a proof-of-concept, performance of the integrated heating system was compared to conventional equipment for the detection of gluten-containing cereals in food products, showing similar results in terms of amplification time, specificity, and sensitivity. Amplification by RPA achieved the lowest detectable concentration, presenting a limit of detection of 0.0180 ng µL-1, being more sensitive than LAMP by one order of magnitude, and enabling amplification in less than 20 min.Foteini Roumani, Jorge Barros-Velázquez, Alejandro Garrido-Maestu, Marta Prado
Food Control, 144 , 2022.
@article{Roumani2022b,
title = {Real-time PCR, and Recombinase Polymerase Amplification combined with SYBR Green I for naked-eye detection, along with Propidium Monoazide (PMA) for the detection of viable patulin-producing fungi in apples and by-products},
author = {Foteini Roumani, Jorge Barros-Velázquez, Alejandro Garrido-Maestu, Marta Prado},
url = {https://doi.org/10.1016/j.foodcont.2022.109347},
doi = {10.1016/j.foodcont.2022.109347},
year = {2022},
date = {2022-09-02},
journal = {Food Control},
volume = {144},
abstract = {Nowadays, the application of rapid molecular-based methods such as PCR/qPCR and isothermal techniques like Recombinase Polymerase Amplification (RPA), has increased in order to overcome some of the drawbacks of traditional culture-based methods due to their high sensitivity and specificity. One of the main limitations of these techniques is their inability to differentiate between live and dead microorganisms. Patulin is a mycotoxin typically produced by fungi belonging to Penicillium spp. that exerts acute and chronic toxic effects to humans and animals. In the present study, one real-time PCR assay, and a RPA coupled with SYBR Green I for naked-eye detection, were developed for the detection of patulin-producing fungi. Primers and a probe were designed based on the idh gene of the patulin metabolic pathway. Furthermore, propidium monoazide was implemented in the DNA extraction protocol for the specific detection of viable fungi. The developed assays were able to detect down to 1.25 pg/μL (qPCR) and 23.8 pg/μL (RPA-SG) of pure P. expansum DNA. Finally, when artificially inoculated apples, and by-products, were analysed the LOD50 of the qPCR was found to be 8.1 × 103 spores/5 g of food sample. In the case of the RPA-SG, the determined LOD50 was 5.8 × 104 spores/5 g.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Nowadays, the application of rapid molecular-based methods such as PCR/qPCR and isothermal techniques like Recombinase Polymerase Amplification (RPA), has increased in order to overcome some of the drawbacks of traditional culture-based methods due to their high sensitivity and specificity. One of the main limitations of these techniques is their inability to differentiate between live and dead microorganisms. Patulin is a mycotoxin typically produced by fungi belonging to Penicillium spp. that exerts acute and chronic toxic effects to humans and animals. In the present study, one real-time PCR assay, and a RPA coupled with SYBR Green I for naked-eye detection, were developed for the detection of patulin-producing fungi. Primers and a probe were designed based on the idh gene of the patulin metabolic pathway. Furthermore, propidium monoazide was implemented in the DNA extraction protocol for the specific detection of viable fungi. The developed assays were able to detect down to 1.25 pg/μL (qPCR) and 23.8 pg/μL (RPA-SG) of pure P. expansum DNA. Finally, when artificially inoculated apples, and by-products, were analysed the LOD50 of the qPCR was found to be 8.1 × 103 spores/5 g of food sample. In the case of the RPA-SG, the determined LOD50 was 5.8 × 104 spores/5 g.Azinheiro, S., Roumani, F., Prado, M. , Garrido-Maetsu, A.
Rapid Same-Day Detection of Listeria monocytogenes, Salmonella spp., and Escherichia coli O157 by Colorimetric LAMP in Dairy Products. Journal Article
Food Anal. Methods (2022), 2022.
@article{Azinheiro2022b,
title = {Rapid Same-Day Detection of Listeria monocytogenes, Salmonella spp., and Escherichia coli O157 by Colorimetric LAMP in Dairy Products.},
author = {Azinheiro, S., Roumani, F., Prado, M. , Garrido-Maetsu, A.},
url = {https://doi.org/10.1007/s12161-022-02345-9},
doi = {10.1007/s12161-022-02345-9},
year = {2022},
date = {2022-06-18},
journal = {Food Anal. Methods (2022)},
abstract = {Foodborne illnesses are being reported everyday; thus, there is an obvious need for faster and sensitive methodologies to detect foodborne pathogens in order to assure the safeness of foods. In the present study, the detection of L. monocytogenes, Salmonella spp., and E. coli O157 was performed combining a multiplex short enrichment of 7 h in Tryptic Soy Broth, with a colorimetric LAMP-based naked-eye detection. The LAMP reaction obtained a similar sensitivity to that of real-time PCR. The methodology was evaluated in UHT, fresh and raw milk were tested, achieving a LoD95 of 1.6 CFU/25 mL for Salmonella spp. and E. coli O157 respectively without matrix interference, and for L. monocytogenes, the LoD95 was calculated to be 79.0 CFU/25 mL, showing some interference when a higher natural microflora was present in the sample. The methodology can be applied in the food industry with reliability, as the evaluation obtained a k index of 1.0 for L. monocytogenes and Salmonella spp. and 0.94 for E. coli O157.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Foodborne illnesses are being reported everyday; thus, there is an obvious need for faster and sensitive methodologies to detect foodborne pathogens in order to assure the safeness of foods. In the present study, the detection of L. monocytogenes, Salmonella spp., and E. coli O157 was performed combining a multiplex short enrichment of 7 h in Tryptic Soy Broth, with a colorimetric LAMP-based naked-eye detection. The LAMP reaction obtained a similar sensitivity to that of real-time PCR. The methodology was evaluated in UHT, fresh and raw milk were tested, achieving a LoD95 of 1.6 CFU/25 mL for Salmonella spp. and E. coli O157 respectively without matrix interference, and for L. monocytogenes, the LoD95 was calculated to be 79.0 CFU/25 mL, showing some interference when a higher natural microflora was present in the sample. The methodology can be applied in the food industry with reliability, as the evaluation obtained a k index of 1.0 for L. monocytogenes and Salmonella spp. and 0.94 for E. coli O157.Agnes Purwidyantri, Andrey Ipatov, Telma Domingues, Jérôme Borme, Marco Martins, Pedro Alpuim, Marta Prado
Programmable graphene-based microfluidic sensor for DNA detection Journal Article
Sensors and Actuators B: Chemical, 367 , pp. 132044, 2022.
@article{Purwidyantri2022,
title = {Programmable graphene-based microfluidic sensor for DNA detection},
author = {Agnes Purwidyantri, Andrey Ipatov, Telma Domingues, Jérôme Borme, Marco Martins, Pedro Alpuim, Marta Prado},
url = {https://doi.org/10.1016/j.snb.2022.132044},
doi = {10.1016/j.snb.2022.132044},
year = {2022},
date = {2022-05-26},
journal = {Sensors and Actuators B: Chemical},
volume = {367},
pages = {132044},
abstract = {This study presents the development of a lab-on-a-chip (LoC) by integrating a graphene field-effect transistor (FET) chip with a programmable microfluidic device for DNA detection. The real-time biochemical events on the graphene FET chip were monitored through Dirac voltage shift data from the portable graphene curve reader with changes dependent on the fluidic flow into the sensing interface by a fully automated programmable microfluidic system. High sensitivity with high reliability can be obtained with a nine-graphene sensor layout on a single chip. The portable graphene curve reader also provides a tunable electrical parameter setup and straightforward data acquisition. Fluidic control was performed through a multi-position valve, allowing sequential commands for liquid injection into the polydimethylsiloxane (PDMS) flow cell mounted on the sensing chip. The flow cell design with impinging jet geometry and the microfluidic system packaging offer high precision and portability as a less laborious and low-cost sensing setup. The merged system allows for various functionalities, including probe DNA (pDNA) immobilization, a blocking step, and DNA hybridization with stable signal output autonomously, even in a long-run experimental setup. As a DNA sensor, the proposed prototype has demonstrated a high sensitivity of ~44 mV/decade of target DNA concentration, with an outstanding limit of detection (LoD) of ~0.642 aM, making it one of the most sensitive sensors reported up to date. The programmable device has demonstrated essential versatilities for biomolecular detection in a fully portable and automated platform.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}This study presents the development of a lab-on-a-chip (LoC) by integrating a graphene field-effect transistor (FET) chip with a programmable microfluidic device for DNA detection. The real-time biochemical events on the graphene FET chip were monitored through Dirac voltage shift data from the portable graphene curve reader with changes dependent on the fluidic flow into the sensing interface by a fully automated programmable microfluidic system. High sensitivity with high reliability can be obtained with a nine-graphene sensor layout on a single chip. The portable graphene curve reader also provides a tunable electrical parameter setup and straightforward data acquisition. Fluidic control was performed through a multi-position valve, allowing sequential commands for liquid injection into the polydimethylsiloxane (PDMS) flow cell mounted on the sensing chip. The flow cell design with impinging jet geometry and the microfluidic system packaging offer high precision and portability as a less laborious and low-cost sensing setup. The merged system allows for various functionalities, including probe DNA (pDNA) immobilization, a blocking step, and DNA hybridization with stable signal output autonomously, even in a long-run experimental setup. As a DNA sensor, the proposed prototype has demonstrated a high sensitivity of ~44 mV/decade of target DNA concentration, with an outstanding limit of detection (LoD) of ~0.642 aM, making it one of the most sensitive sensors reported up to date. The programmable device has demonstrated essential versatilities for biomolecular detection in a fully portable and automated platform.Colmiais, I; Borme, Jerome; Alpuim, Pedro; Mendes, P. M.
Graphene LC oscillator for biosensing applications Proceeding
36th Conference on Design of Circuits and Integrated Systems (DCIS) Conference on Design of Circuits and Integrated Systems DCIS, PORTUGAL, 2022.
@proceedings{Colmiais2022,
title = {Graphene LC oscillator for biosensing applications},
author = {Colmiais, I; Borme, Jerome; Alpuim, Pedro; Mendes, P. M.},
doi = {10.1109/DCIS53048.2021.9666173},
year = {2022},
date = {2022-04-27},
booktitle = {Conference on Design of Circuits and Integrated Systems DCIS},
pages = {77-81},
publisher = {Conference on Design of Circuits and Integrated Systems DCIS},
address = {PORTUGAL},
organization = {36th Conference on Design of Circuits and Integrated Systems (DCIS)},
abstract = {Graphene has been extensively explored due to its extraordinary properties. Through surface functionalization, it's possible to have it operating as a biosensor, being able to detect the target analytes with high sensitivity. Since biosensing is a key technology that, in combination with integrated microelectronics, may leverage new solutions to allow more flexible healthcare monitoring and treatment solutions, different approaches have been used to increase the performance of such sensors. In this paper, the use of a graphene oscillator that is comprised of an LC tank is evaluated as the readout core of a graphene biosensing device. The tank was implemented in Cadence using the UMC 18 mu m CMOS technology, and the performance assessed using the available literature about graphene components and their properties. An oscillation frequency of 1.5 GHz was achieved, with a phase noise of -134 dB/Hz, at an offset of 10 MHz.},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}Graphene has been extensively explored due to its extraordinary properties. Through surface functionalization, it's possible to have it operating as a biosensor, being able to detect the target analytes with high sensitivity. Since biosensing is a key technology that, in combination with integrated microelectronics, may leverage new solutions to allow more flexible healthcare monitoring and treatment solutions, different approaches have been used to increase the performance of such sensors. In this paper, the use of a graphene oscillator that is comprised of an LC tank is evaluated as the readout core of a graphene biosensing device. The tank was implemented in Cadence using the UMC 18 mu m CMOS technology, and the performance assessed using the available literature about graphene components and their properties. An oscillation frequency of 1.5 GHz was achieved, with a phase noise of -134 dB/Hz, at an offset of 10 MHz.Martin Lopez-Garcia
Versatile chip-based nanoscopy becomes ready for histopathology assessment Journal Article
LIGHT-SCIENCE & APPLICATIONS, 11 (1) (87), 2022.
@article{Lopez-Garcia2022,
title = {Versatile chip-based nanoscopy becomes ready for histopathology assessment},
author = {Martin Lopez-Garcia},
doi = {10.1038/s41377-022-00781-0},
year = {2022},
date = {2022-04-23},
journal = {LIGHT-SCIENCE & APPLICATIONS},
volume = {11 (1)},
number = {87},
abstract = {Nanoscopy is a mature technology used routinely in life science to obtain images well below the optical diffraction limit. But the use of nanoscopy in histopathology assessment is very limited mostly due to the low throughput of traditional nanoscopic techniques. So far, Chip-nanoscopy, nanoscopy in which sample illumination is performed by an integrated photonic chip instead of bulk optics, has been shown to provide an enhanced field of view and throughput for cell biology. Now, a new development shows that chip-nanoscopy also offers interesting progress for the study of histological samples offering a complementary technique to electron microscopy for histopathology assessment.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Nanoscopy is a mature technology used routinely in life science to obtain images well below the optical diffraction limit. But the use of nanoscopy in histopathology assessment is very limited mostly due to the low throughput of traditional nanoscopic techniques. So far, Chip-nanoscopy, nanoscopy in which sample illumination is performed by an integrated photonic chip instead of bulk optics, has been shown to provide an enhanced field of view and throughput for cell biology. Now, a new development shows that chip-nanoscopy also offers interesting progress for the study of histological samples offering a complementary technique to electron microscopy for histopathology assessment.Cátia Vieira Rocha, Victor Gonçalves, Milene Costa da Silva, Manuel Bañobre-López andJuan Gallo
PLGA-Based Composites for Various Biomedical Applications Journal Article
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 23 (4) (2034), 2022.
@article{Rocha2022,
title = {PLGA-Based Composites for Various Biomedical Applications},
author = {Cátia Vieira Rocha, Victor Gonçalves, Milene Costa da Silva, Manuel Bañobre-López andJuan Gallo
},
doi = {10.3390/ijms23042034},
year = {2022},
date = {2022-04-20},
journal = {INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES},
volume = {23 (4)},
number = {2034},
abstract = {Polymeric materials have been extensively explored in the field of nanomedicine; within them, poly lactic-co-glycolic acid (PLGA) holds a prominent position in micro- and nanotechnology due to its biocompatibility and controllable biodegradability. In this review we focus on the combination of PLGA with different inorganic nanomaterials in the form of nanocomposites to overcome the polymer's limitations and extend its field of applications. We discuss their physicochemical properties and a variety of well-established synthesis methods for the preparation of different PLGA-based materials. Recent progress in the design and biomedical applications of PLGA-based materials are thoroughly discussed to provide a framework for future research.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Polymeric materials have been extensively explored in the field of nanomedicine; within them, poly lactic-co-glycolic acid (PLGA) holds a prominent position in micro- and nanotechnology due to its biocompatibility and controllable biodegradability. In this review we focus on the combination of PLGA with different inorganic nanomaterials in the form of nanocomposites to overcome the polymer's limitations and extend its field of applications. We discuss their physicochemical properties and a variety of well-established synthesis methods for the preparation of different PLGA-based materials. Recent progress in the design and biomedical applications of PLGA-based materials are thoroughly discussed to provide a framework for future research.João Brito, João Restivo, Juliana P. S. Sousa, Natalia C. M. Spera, D. S. Falcão, Amadeu Rocha, A. M. F. R. Pinto, Manuel Fernando R. Pereira and Olívia Salomé G. P. Soares
Implementation of Transition Metal Phosphides as Pt-Free Catalysts for PEM Water Electrolysis Journal Article
ENERGIES, 15 (5) (1821), 2022.
@article{Brito2022,
title = {Implementation of Transition Metal Phosphides as Pt-Free Catalysts for PEM Water Electrolysis},
author = {João Brito, João Restivo, Juliana P. S. Sousa, Natalia C. M. Spera, D. S. Falcão, Amadeu Rocha, A. M. F. R. Pinto, Manuel Fernando R. Pereira and Olívia Salomé G. P. Soares},
doi = {10.3390/en15051821},
year = {2022},
date = {2022-04-13},
journal = {ENERGIES},
volume = {15 (5)},
number = {1821},
abstract = {Proton Exchange Membrane (PEM) water electrolysis (WE) produces H-2 with a high degree of purity, requiring only water and energy. If the energy is provided from renewable energy sources, it releases "Green H-2", a CO2-free H-2. PEMWE uses expensive and rare noble metal catalysts, which hinder their use at a large industrial scale. In this work, the electrocatalytic properties of Transition Metal Phosphides (TMP) catalysts supported on Carbon Black (CB) for Hydrogen Evolution Reaction (HER) were investigated as an alternative to Platinum Group Metals. The physico-chemical properties and catalytic performance of the synthesized catalysts were characterized. In the ex situ experiments, the 25% FeP/CB, 50% FeP/CB and 50% CoP/CB with overpotentials of -156.0, -165.9 and -158.5 mV for a current density of 100 mA cm(-2) showed the best catalytic properties, thereby progressing to the PEMWE tests. In those tests, the 50% FeP/CB required an overpotential of 252 mV for a current density of 10 mA cm(-2), quite close to the 220 mV of the Pt catalyst. This work provides a proper approach to the synthesis and characterization of TMP supported on carbon materials for the HER, paving the way for further research in order to replace the currently used PGM in PEMWE.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Proton Exchange Membrane (PEM) water electrolysis (WE) produces H-2 with a high degree of purity, requiring only water and energy. If the energy is provided from renewable energy sources, it releases "Green H-2", a CO2-free H-2. PEMWE uses expensive and rare noble metal catalysts, which hinder their use at a large industrial scale. In this work, the electrocatalytic properties of Transition Metal Phosphides (TMP) catalysts supported on Carbon Black (CB) for Hydrogen Evolution Reaction (HER) were investigated as an alternative to Platinum Group Metals. The physico-chemical properties and catalytic performance of the synthesized catalysts were characterized. In the ex situ experiments, the 25% FeP/CB, 50% FeP/CB and 50% CoP/CB with overpotentials of -156.0, -165.9 and -158.5 mV for a current density of 100 mA cm(-2) showed the best catalytic properties, thereby progressing to the PEMWE tests. In those tests, the 50% FeP/CB required an overpotential of 252 mV for a current density of 10 mA cm(-2), quite close to the 220 mV of the Pt catalyst. This work provides a proper approach to the synthesis and characterization of TMP supported on carbon materials for the HER, paving the way for further research in order to replace the currently used PGM in PEMWE.Mónica Cerqueira, Efres Belmonte-Reche, Juan Gallo, Fátima Baltazar, Manuel Bañobre-López
Magnetic Solid Nanoparticles and Their Counterparts: Recent Advances towards Cancer Theranostics Journal Article
PHARMACEUTICS, 14 (3) (506), 2022.
@article{Cerqueira2022,
title = {Magnetic Solid Nanoparticles and Their Counterparts: Recent Advances towards Cancer Theranostics},
author = {Mónica Cerqueira, Efres Belmonte-Reche, Juan Gallo, Fátima Baltazar, Manuel Bañobre-López},
doi = {10.3390/pharmaceutics14030506},
year = {2022},
date = {2022-04-13},
journal = {PHARMACEUTICS},
volume = {14 (3)},
number = {506},
abstract = {Cancer is currently a leading cause of death worldwide. The World Health Organization estimates an increase of 60% in the global cancer incidence in the next two decades. The inefficiency of the currently available therapies has prompted an urgent effort to develop new strategies that enable early diagnosis and improve response to treatment. Nanomedicine formulations can improve the pharmacokinetics and pharmacodynamics of conventional therapies and result in optimized cancer treatments. In particular, theranostic formulations aim at addressing the high heterogeneity of tumors and metastases by integrating imaging properties that enable a non-invasive and quantitative assessment of tumor targeting efficiency, drug delivery, and eventually the monitoring of the response to treatment. However, in order to exploit their full potential, the promising results observed in preclinical stages need to achieve clinical translation. Despite the significant number of available functionalization strategies, targeting efficiency is currently one of the major limitations of advanced nanomedicines in the oncology area, highlighting the need for more efficient nanoformulation designs that provide them with selectivity for precise cancer types and tumoral tissue. Under this current need, this review provides an overview of the strategies currently applied in the cancer theranostics field using magnetic nanoparticles (MNPs) and solid lipid nanoparticles (SLNs), where both nanocarriers have recently entered the clinical trials stage. The integration of these formulations into magnetic solid lipid nanoparticles-with different composition and phenotypic activity-constitutes a new generation of theranostic nanomedicines with great potential for the selective, controlled, and safe delivery of chemotherapy.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Cancer is currently a leading cause of death worldwide. The World Health Organization estimates an increase of 60% in the global cancer incidence in the next two decades. The inefficiency of the currently available therapies has prompted an urgent effort to develop new strategies that enable early diagnosis and improve response to treatment. Nanomedicine formulations can improve the pharmacokinetics and pharmacodynamics of conventional therapies and result in optimized cancer treatments. In particular, theranostic formulations aim at addressing the high heterogeneity of tumors and metastases by integrating imaging properties that enable a non-invasive and quantitative assessment of tumor targeting efficiency, drug delivery, and eventually the monitoring of the response to treatment. However, in order to exploit their full potential, the promising results observed in preclinical stages need to achieve clinical translation. Despite the significant number of available functionalization strategies, targeting efficiency is currently one of the major limitations of advanced nanomedicines in the oncology area, highlighting the need for more efficient nanoformulation designs that provide them with selectivity for precise cancer types and tumoral tissue. Under this current need, this review provides an overview of the strategies currently applied in the cancer theranostics field using magnetic nanoparticles (MNPs) and solid lipid nanoparticles (SLNs), where both nanocarriers have recently entered the clinical trials stage. The integration of these formulations into magnetic solid lipid nanoparticles-with different composition and phenotypic activity-constitutes a new generation of theranostic nanomedicines with great potential for the selective, controlled, and safe delivery of chemotherapy.Anusha, Aninamol Ani, P. Poornesh, Albin Antony, Bhaghyesh, Igor V. Shchetinin, K. K. Nagaraja, Saikat Chattopadhyay and K. B. Vinayakumar
Impact of Ag on the Limit of Detection towards NH3-Sensing in Spray-Coated WO3 Thin-Films Journal Article
SENSORS, 22 (5) (2033), 2022.
@article{Anusha2022,
title = {Impact of Ag on the Limit of Detection towards NH3-Sensing in Spray-Coated WO3 Thin-Films},
author = {Anusha, Aninamol Ani, P. Poornesh, Albin Antony, Bhaghyesh, Igor V. Shchetinin, K. K. Nagaraja, Saikat Chattopadhyay and K. B. Vinayakumar},
doi = {10.3390/s22052033},
year = {2022},
date = {2022-04-13},
journal = {SENSORS},
volume = {22 (5)},
number = {2033},
abstract = {Ag-doped WO3 (Ag-WO3) films were deposited on a soda-lime glass substrate via a facile spray pyrolysis technique. The surface roughness of the films varied between 0.6 nm and 4.3 nm, as verified by the Atomic Force Microscopy (AFM) studies. Ammonia (NH3)-sensing measurements of the films were performed for various concentrations at an optimum sensor working temperature of 200 degrees C. Enrichment of oxygen vacancies confirmed by X-ray Photoelectron Spectroscopy (XPS) in 1% Ag-WO3 enhanced the sensor response from 1.06 to 3.29, approximately 3 times higher than that of undoped WO3. Limit of detection (LOD) up to 500 ppb is achieved for 1% Ag-WO3, substantiating the role of Ag in improving sensor performance.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Ag-doped WO3 (Ag-WO3) films were deposited on a soda-lime glass substrate via a facile spray pyrolysis technique. The surface roughness of the films varied between 0.6 nm and 4.3 nm, as verified by the Atomic Force Microscopy (AFM) studies. Ammonia (NH3)-sensing measurements of the films were performed for various concentrations at an optimum sensor working temperature of 200 degrees C. Enrichment of oxygen vacancies confirmed by X-ray Photoelectron Spectroscopy (XPS) in 1% Ag-WO3 enhanced the sensor response from 1.06 to 3.29, approximately 3 times higher than that of undoped WO3. Limit of detection (LOD) up to 500 ppb is achieved for 1% Ag-WO3, substantiating the role of Ag in improving sensor performance.Chih-Hsien Hsu, Akhilesh Kumar Gupta, Agnes Purwidyantri, Briliant Adhi Prabowo, Ching-Hsiang Chen, Chi-Cheng Chuang, Ya-Chung Tian, Yu-Jen Lu and Chao-Sung Lai
Sensing Alzheimer's Disease Utilizing Au Electrode by Controlling Nanorestructuring Journal Article
CHEMOSENSORS, 10 (3) (94), 2022.
@article{Hsu2022,
title = {Sensing Alzheimer's Disease Utilizing Au Electrode by Controlling Nanorestructuring},
author = {Chih-Hsien Hsu, Akhilesh Kumar Gupta, Agnes Purwidyantri, Briliant Adhi Prabowo, Ching-Hsiang Chen, Chi-Cheng Chuang, Ya-Chung Tian, Yu-Jen Lu and Chao-Sung Lai},
doi = {10.3390/chemosensors10030094},
year = {2022},
date = {2022-04-12},
journal = {CHEMOSENSORS},
volume = {10 (3)},
number = {94},
abstract = {This paper reports the development of Alzheimer's disease (AD) sensor through early detection of amyloid-beta (A beta) (1-42) using simple nanorestructuring of Au sheet plate by oxidation-reduction cycle (ORC) via the electrochemical system. The topology of Au substrates was enhanced through the roughening and Au grains grown by a simple ORC technique in aqueous solutions containing 0.1 mol/L KCl electrolytes. The roughened substrate was then functionalized with the highly specific antibody beta-amyloid A beta (1-28) through HS-PEG-NHS modification, which enabled effective and direct detection of A beta (1-42) peptide. The efficacy of the ORC method had been exhibited in the polished Au surface by approximately 15% larger electro-active sites compared to the polished Au without ORC. The ORC polished structure demonstrated a rapid, accurate, precise, reproducible, and highly sensitive detection of A beta (1-42) peptide with a low detection limit of 10.4 fg/mL and a wide linear range of 10(-2) to 10(6 )pg/mL. The proposed structure had been proven to have potential as an early-stage Alzheimer's disease (AD) detection platform with low-cost fabrication and ease of operation.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}This paper reports the development of Alzheimer's disease (AD) sensor through early detection of amyloid-beta (A beta) (1-42) using simple nanorestructuring of Au sheet plate by oxidation-reduction cycle (ORC) via the electrochemical system. The topology of Au substrates was enhanced through the roughening and Au grains grown by a simple ORC technique in aqueous solutions containing 0.1 mol/L KCl electrolytes. The roughened substrate was then functionalized with the highly specific antibody beta-amyloid A beta (1-28) through HS-PEG-NHS modification, which enabled effective and direct detection of A beta (1-42) peptide. The efficacy of the ORC method had been exhibited in the polished Au surface by approximately 15% larger electro-active sites compared to the polished Au without ORC. The ORC polished structure demonstrated a rapid, accurate, precise, reproducible, and highly sensitive detection of A beta (1-42) peptide with a low detection limit of 10.4 fg/mL and a wide linear range of 10(-2) to 10(6 )pg/mL. The proposed structure had been proven to have potential as an early-stage Alzheimer's disease (AD) detection platform with low-cost fabrication and ease of operation.José R. M. Barbosa, Juliana P. S. Sousa, João Restivo, Manuel F. R. Pereira and Olívia S. G. P. Soares
Palladium Impregnation on Electrospun Carbon Fibers for Catalytic Reduction of Bromate in Water Journal Article
PROCESSES, 10 (3) (458), 2022.
@article{Barbosa2022b,
title = {Palladium Impregnation on Electrospun Carbon Fibers for Catalytic Reduction of Bromate in Water},
author = {José R. M. Barbosa, Juliana P. S. Sousa, João Restivo, Manuel F. R. Pereira and Olívia S. G. P. Soares},
doi = {10.3390/pr10030458},
year = {2022},
date = {2022-04-08},
journal = {PROCESSES},
volume = {10 (3)},
number = {458},
abstract = {The remediation of bromate in water is a concern due to the reported health issues caused by its ingestion. Catalytic processes, wherein bromate is reduced to non-hazardous bromide, have been studied. In the present work, catalysts of 1% palladium supported in electrospun carbon fibers (Pd-CFs) using different methods for palladium incorporation were prepared. The textural properties, morphology, crystalline structure, and hydrogenation capacity by H-2 chemisorption analysis of the Pd-CFs catalysts were characterized. The catalytic tests were performed in a semi-batch reactor, and the obtained results showed different catalytic activity by each prepared Pd-CFs catalyst. The catalysts prepared by incipient wetness impregnation-1% Pd/CF1 and 1% Pd/CF2, using CFs obtained with electrospinning flow rates of 0.5 mL h(-1) and 2 mL h(-1), respectively-achieved total bromate reduction after 120 min of operation; however, 1% Pd/CF1 obtained total reduction as early as 30 min. Taking into account the catalyst properties, 1% Pd/CF1 showed a good catalytic activity due to CFs morphology obtained using a low electrospinning flow rate, while the Pd incorporation method allowed a high availability of active sites with hydrogenation properties for bromate reduction.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}The remediation of bromate in water is a concern due to the reported health issues caused by its ingestion. Catalytic processes, wherein bromate is reduced to non-hazardous bromide, have been studied. In the present work, catalysts of 1% palladium supported in electrospun carbon fibers (Pd-CFs) using different methods for palladium incorporation were prepared. The textural properties, morphology, crystalline structure, and hydrogenation capacity by H-2 chemisorption analysis of the Pd-CFs catalysts were characterized. The catalytic tests were performed in a semi-batch reactor, and the obtained results showed different catalytic activity by each prepared Pd-CFs catalyst. The catalysts prepared by incipient wetness impregnation-1% Pd/CF1 and 1% Pd/CF2, using CFs obtained with electrospinning flow rates of 0.5 mL h(-1) and 2 mL h(-1), respectively-achieved total bromate reduction after 120 min of operation; however, 1% Pd/CF1 obtained total reduction as early as 30 min. Taking into account the catalyst properties, 1% Pd/CF1 showed a good catalytic activity due to CFs morphology obtained using a low electrospinning flow rate, while the Pd incorporation method allowed a high availability of active sites with hydrogenation properties for bromate reduction.Katerina Nikolaidou; Hugo M. Oliveira; Susana Cardoso; Paulo P. Freitas; Virginia Chu; João Pedro Conde
Monolithic Integration of Multi-Spectral Optical Interference Filter Array on Thin Film Amorphous Silicon Photodiodes Journal Article
IEEE SENSORS JOURNAL, 22 (6), pp. 5636-5643, 2022.
@article{Conde2022,
title = {Monolithic Integration of Multi-Spectral Optical Interference Filter Array on Thin Film Amorphous Silicon Photodiodes},
author = {Katerina Nikolaidou; Hugo M. Oliveira; Susana Cardoso; Paulo P. Freitas; Virginia Chu; João Pedro Conde},
doi = {10.1109/JSEN.2022.3150228},
year = {2022},
date = {2022-04-02},
journal = {IEEE SENSORS JOURNAL},
volume = {22},
number = {6},
pages = {5636-5643},
abstract = {Hydrogenated amorphous silicon thin film photodetectors combined with optical filters are routinely used for biological detection applications based on fluorescence. Monolithic integration of these filters to the photodetectors further enhances the portability and simplicity of the system. However, due to the multitude of fluorophores used in such applications, it is often necessary to combine multiple filters in a single chip for increased ease of application and portability of the system. In this work, we report a novel facile technique to integrate multiple filters in a chip with four photodiodes, in an innovative methodology that leverages the beneficial characteristics of different types of deposition techniques to fabricate precise multilayer interference filters. Ion beam deposited MgO layers with different thicknesses are successively patterned by lift-off and sandwiched between two standard dielectric mirrors deposited via plasma-enhanced chemical vapor deposition to produce the filter array. The successful integration of the devices is demonstrated through fluorescence measurements of grape fluorescence at two different wavelengths which are utilized in grape maturation monitoring in the viticulture sector.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Hydrogenated amorphous silicon thin film photodetectors combined with optical filters are routinely used for biological detection applications based on fluorescence. Monolithic integration of these filters to the photodetectors further enhances the portability and simplicity of the system. However, due to the multitude of fluorophores used in such applications, it is often necessary to combine multiple filters in a single chip for increased ease of application and portability of the system. In this work, we report a novel facile technique to integrate multiple filters in a chip with four photodiodes, in an innovative methodology that leverages the beneficial characteristics of different types of deposition techniques to fabricate precise multilayer interference filters. Ion beam deposited MgO layers with different thicknesses are successively patterned by lift-off and sandwiched between two standard dielectric mirrors deposited via plasma-enhanced chemical vapor deposition to produce the filter array. The successful integration of the devices is demonstrated through fluorescence measurements of grape fluorescence at two different wavelengths which are utilized in grape maturation monitoring in the viticulture sector.Shengyao Chen , Shu Wanga, Cong Wang, Zhongchang Wang, Qian Liu
Latest advance on seamless metal-semiconductor contact with ultralow barrier in 2D-material-based devices Journal Article
NANOTODAY, 42 , 2022.
@article{Chen2022,
title = {Latest advance on seamless metal-semiconductor contact with ultralow barrier in 2D-material-based devices},
author = {Shengyao Chen , Shu Wanga, Cong Wang, Zhongchang Wang, Qian Liu},
year = {2022},
date = {2022-04-01},
journal = {NANOTODAY},
volume = {42},
abstract = {2D-material semiconductors with unique photonic and optoelectronic properties process ultralow energy consumption and are naturally compatible to semiconductor fabrication process, which show great potential in many applications such as memristors, optoelectronic probers, energy devices, and catalytic system. Generally, electrode fabrication process inevitably introduces a non-Ohmic contact between the semiconductor and its electrodes due to the Schottky barrier and gap states, thus raising energy consumption and limiting device performance. Recently, seamless-contact technologies have been developed, which can turn the semiconductor-electrode contact to be Ohmic by eliminating gap states and Schottky barrier, thereby having fundamental implications on 2D-material-based devices. This work will review the recent progresses of the seamless contacts from both theory and experiment aspect, summarize the existing difficulties, exploring improvement of metal-semiconductor contact and propose future exploration direction. This review is timely and helpful to improve the performance of 2D-material-based devices by introducing seamless contact and approaching the Ohmic contact.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}2D-material semiconductors with unique photonic and optoelectronic properties process ultralow energy consumption and are naturally compatible to semiconductor fabrication process, which show great potential in many applications such as memristors, optoelectronic probers, energy devices, and catalytic system. Generally, electrode fabrication process inevitably introduces a non-Ohmic contact between the semiconductor and its electrodes due to the Schottky barrier and gap states, thus raising energy consumption and limiting device performance. Recently, seamless-contact technologies have been developed, which can turn the semiconductor-electrode contact to be Ohmic by eliminating gap states and Schottky barrier, thereby having fundamental implications on 2D-material-based devices. This work will review the recent progresses of the seamless contacts from both theory and experiment aspect, summarize the existing difficulties, exploring improvement of metal-semiconductor contact and propose future exploration direction. This review is timely and helpful to improve the performance of 2D-material-based devices by introducing seamless contact and approaching the Ohmic contact.Rui Soares Barbosa, T. Douce, Pierre-Emmanuel Emeriau, E. Kashefi, Shane Mansfield
Continuous-Variable Nonlocality and Contextuality Journal Article
COMMUNICATIONS IN MATHEMATICAL PHYSICS, 2022.
@article{Barbosa2022,
title = {Continuous-Variable Nonlocality and Contextuality},
author = {Rui Soares Barbosa, T. Douce, Pierre-Emmanuel Emeriau, E. Kashefi, Shane Mansfield},
doi = {10.1007/s00220-021-04285-7},
year = {2022},
date = {2022-03-31},
journal = {COMMUNICATIONS IN MATHEMATICAL PHYSICS},
abstract = {Contextuality is a non-classical behaviour that can be exhibited by quantum systems. It is increasingly studied for its relationship to quantum-over-classical advantages in informatic tasks. To date, it has largely been studied in discrete-variable scenarios, where observables take values in discrete and usually finite sets. Practically, on the other hand, continuous-variable scenarios offer some of the most promising candidates for implementing quantum computations and informatic protocols. Here we set out a framework for treating contextuality in continuous-variable scenarios. It is shown that the Fine-Abramsky-Brandenburger theorem extends to this setting, an important consequence of which is that Bell nonlocality can be viewed as a special case of contextuality, as in the discrete case. The contextual fraction, a quantifiable measure of contextuality that bears a precise relationship to Bell inequality violations and quantum advantages, is also defined in this setting. It is shown to be a non-increasing monotone with respect to classical operations that include binning to discretise data. Finally, we consider how the contextual fraction can be formulated as an infinite linear program. Through Lasserre relaxations, we are able to express this infinite linear program as a hierarchy of semi-definite programs that allow to calculate the contextual fraction with increasing accuracy.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Contextuality is a non-classical behaviour that can be exhibited by quantum systems. It is increasingly studied for its relationship to quantum-over-classical advantages in informatic tasks. To date, it has largely been studied in discrete-variable scenarios, where observables take values in discrete and usually finite sets. Practically, on the other hand, continuous-variable scenarios offer some of the most promising candidates for implementing quantum computations and informatic protocols. Here we set out a framework for treating contextuality in continuous-variable scenarios. It is shown that the Fine-Abramsky-Brandenburger theorem extends to this setting, an important consequence of which is that Bell nonlocality can be viewed as a special case of contextuality, as in the discrete case. The contextual fraction, a quantifiable measure of contextuality that bears a precise relationship to Bell inequality violations and quantum advantages, is also defined in this setting. It is shown to be a non-increasing monotone with respect to classical operations that include binning to discretise data. Finally, we consider how the contextual fraction can be formulated as an infinite linear program. Through Lasserre relaxations, we are able to express this infinite linear program as a hierarchy of semi-definite programs that allow to calculate the contextual fraction with increasing accuracy.Mariana B. S. Felgueiras , João Restivo, Juliana P. S. Sousa, Manuel F. R. Pereira and Olívia S. G. P. Soares
Copper Supported on Mesoporous Structured Catalysts for NO Reduction Journal Article
CATALYSTS, 12 (2), pp. 170, 2022.
@article{Felgueiras2022,
title = {Copper Supported on Mesoporous Structured Catalysts for NO Reduction},
author = {Mariana B. S. Felgueiras , João Restivo, Juliana P. S. Sousa, Manuel F. R. Pereira and Olívia S. G. P. Soares},
doi = {10.3390/catal12020170},
year = {2022},
date = {2022-03-30},
journal = {CATALYSTS},
volume = {12},
number = {2},
pages = {170},
abstract = {Nitrogen oxides (NOx) are one of the pollutants of greatest concern in terms of atmospheric contamination and, consequently, human health. The main objective of this work, is the synthesis of structured carbon catalysts, introducing on their surface metals and nitrogen groups, catalytically active in NO reduction. Structured catalysts represent an attractive alternative to powder catalysts because they have better thermal stability and lower pressure drop. The catalysts were synthesized by coating a melamine foam using precursor solutions of carbon xerogels with and without nitrogen (using melamine and urea as precursors), and impregnated with transition metals (Fe, Ni and Cu). The introduction of nitrogen and metals modified the textural properties of the materials. Samples synthesized with melamine presented the highest amount of nitrogen, while the highest content of copper, found to be the most active transition metal for NO reduction, was found in structured catalysts impregnated with urea. The presence of transition metals in catalysts is essential for the reduction of NO to N-2 and the introduction of nitrogenous precursors makes this evident. The synthesis and application of carbon-supported structured catalysts containing transition metals for NO reduction is demonstrated in this work for the first time, as well as the study of the factors influencing their performance.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Nitrogen oxides (NOx) are one of the pollutants of greatest concern in terms of atmospheric contamination and, consequently, human health. The main objective of this work, is the synthesis of structured carbon catalysts, introducing on their surface metals and nitrogen groups, catalytically active in NO reduction. Structured catalysts represent an attractive alternative to powder catalysts because they have better thermal stability and lower pressure drop. The catalysts were synthesized by coating a melamine foam using precursor solutions of carbon xerogels with and without nitrogen (using melamine and urea as precursors), and impregnated with transition metals (Fe, Ni and Cu). The introduction of nitrogen and metals modified the textural properties of the materials. Samples synthesized with melamine presented the highest amount of nitrogen, while the highest content of copper, found to be the most active transition metal for NO reduction, was found in structured catalysts impregnated with urea. The presence of transition metals in catalysts is essential for the reduction of NO to N-2 and the introduction of nitrogenous precursors makes this evident. The synthesis and application of carbon-supported structured catalysts containing transition metals for NO reduction is demonstrated in this work for the first time, as well as the study of the factors influencing their performance.Ricardo M R Adão, Tiago L Alves, Christian Maibohm, Bruno Romeira, Jana B Nieder
Two-photon polymerization simulation and fabrication of 3D microprinted suspended waveguides for on-chip optical interconnects Journal Article
OPTICS EXPRESS, 30 (6), pp. 9623-9642, 2022.
@article{Adão2022,
title = { Two-photon polymerization simulation and fabrication of 3D microprinted suspended waveguides for on-chip optical interconnects},
author = {Ricardo M R Adão, Tiago L Alves, Christian Maibohm, Bruno Romeira, Jana B Nieder},
doi = {10.1364/OE.449641},
year = {2022},
date = {2022-03-26},
journal = {OPTICS EXPRESS},
volume = {30},
number = {6},
pages = {9623-9642},
abstract = {Quantum and neuromorphic computational platforms in integrated photonic circuits require next-generation optical functionalities. Often, increasingly complex on-chip light-routing that allow superpositions not attainable by planar technologies are paramount e.g. for artificial neural networks. Versatile 3D waveguides are achievable via two-photon polymerization (TPP)-based microprinting. Here, a 3D morphology prediction tool which considers experimental TPP parameters, is presented, enabling on-chip 3D waveguide performance simulations. The simulations allow reducing the cost-intensive systematic experimental optimization process. Fabricated 3D waveguides show optical transmission properties in agreement with simulations, demonstrating that the developed morphology prediction methodology is beneficial for the development of versatile on-chip and potentially inter-chip photonic interconnect technology.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Quantum and neuromorphic computational platforms in integrated photonic circuits require next-generation optical functionalities. Often, increasingly complex on-chip light-routing that allow superpositions not attainable by planar technologies are paramount e.g. for artificial neural networks. Versatile 3D waveguides are achievable via two-photon polymerization (TPP)-based microprinting. Here, a 3D morphology prediction tool which considers experimental TPP parameters, is presented, enabling on-chip 3D waveguide performance simulations. The simulations allow reducing the cost-intensive systematic experimental optimization process. Fabricated 3D waveguides show optical transmission properties in agreement with simulations, demonstrating that the developed morphology prediction methodology is beneficial for the development of versatile on-chip and potentially inter-chip photonic interconnect technology.C Milho, S Sillankorva
Implication of a gene deletion on a Salmonella Enteritidis phage growth parameters Journal Article
VIRUS RESEARCH, 308 (198654), 2022.
@article{Milho2022,
title = {Implication of a gene deletion on a Salmonella Enteritidis phage growth parameters},
author = {C Milho, S Sillankorva},
doi = {10.1016/j.virusres.2021.198654},
year = {2022},
date = {2022-03-24},
journal = {VIRUS RESEARCH},
volume = {308},
number = {198654},
abstract = {Synthetic biology has been applied countless times for the modification and improvement of bacterial strains and for the synthesis of products that do not exist in nature. Phages are natural predators of bacteria controlling their population levels; however, their genomes carry several genes with unknown functions. In this work, Bacteriophage Recombineering of Electroporated DNA was used to assess the influence of deletion of a single gene with unknown function in the overall replication parameters of Salmonella phage PVP-SE2. Deletion of ORF_01, transcribed immediately after infection, reduced both the latent and rise periods by 5 min in PVP-SE2 Delta ORF_01 compared to the wild-type phage. A direct consequence of the deletion led to a smaller progeny release per infected cell by the mutant compared to the wild-type phage. Despite the difference in growth characteristics, the mutant phage remained infective towards exponentially growing cells. The mutation engineered endured for at least ten passages, showing that there is no reversion back to the wild-type sequence. This study provides proof of concept that methodologies used for phage engineering should always be complemented by phage growth characterization to assess whether a mutation can trigger undesirable characteristics.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Synthetic biology has been applied countless times for the modification and improvement of bacterial strains and for the synthesis of products that do not exist in nature. Phages are natural predators of bacteria controlling their population levels; however, their genomes carry several genes with unknown functions. In this work, Bacteriophage Recombineering of Electroporated DNA was used to assess the influence of deletion of a single gene with unknown function in the overall replication parameters of Salmonella phage PVP-SE2. Deletion of ORF_01, transcribed immediately after infection, reduced both the latent and rise periods by 5 min in PVP-SE2 Delta ORF_01 compared to the wild-type phage. A direct consequence of the deletion led to a smaller progeny release per infected cell by the mutant compared to the wild-type phage. Despite the difference in growth characteristics, the mutant phage remained infective towards exponentially growing cells. The mutation engineered endured for at least ten passages, showing that there is no reversion back to the wild-type sequence. This study provides proof of concept that methodologies used for phage engineering should always be complemented by phage growth characterization to assess whether a mutation can trigger undesirable characteristics.Foteini Roumani, Cristina Rodrigues, Jorge Barros-Velázquez, Alejandro Garrido-Maestu & Marta Prado
FOOD ANALYTICAL METHODS, 2022.
@article{Roumani2022,
title = {Development of a Panfungal Recombinase Polymerase Amplification (RPA) Method Coupled with Lateral Flow Strips for the Detection of Spoilage Fungi},
author = {Foteini Roumani, Cristina Rodrigues, Jorge Barros-Velázquez, Alejandro Garrido-Maestu & Marta Prado },
doi = {10.1007/s12161-022-02242-1},
year = {2022},
date = {2022-03-21},
journal = {FOOD ANALYTICAL METHODS},
abstract = {Recombinase Polymerase Amplification combined with Lateral Flow (RPA-LF) detection was reported to be a good alternative to traditional culture-based methods, as well as other molecular techniques such as qPCR, PCR and Loop-Mediated Isothermal Amplification. The reasons for this are its simplicity, high sensitivity/specificity and ability for point of care (POC) applications. In this study, an RPA-LF assay was developed and evaluated for the detection of spoilage fungi in fruit-based products. In this sense, the universal primers ITS3 and ITS4 were labelled with digoxigenin and biotin, respectively. The method proved to be very sensitive with the ability to detect down to 1.2 pg/µL of pure fungal DNA. Furthermore, when the assay was applied in artificially contaminated samples, low detection limits were determined, in particular 1.0 CFU/50 g and 45.7 spores/50 g for yeasts and moulds, respectively. Overall, a rapid (24–48 h) and reliable assay was developed for the detection of fungi that could be applied for POC applications.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Recombinase Polymerase Amplification combined with Lateral Flow (RPA-LF) detection was reported to be a good alternative to traditional culture-based methods, as well as other molecular techniques such as qPCR, PCR and Loop-Mediated Isothermal Amplification. The reasons for this are its simplicity, high sensitivity/specificity and ability for point of care (POC) applications. In this study, an RPA-LF assay was developed and evaluated for the detection of spoilage fungi in fruit-based products. In this sense, the universal primers ITS3 and ITS4 were labelled with digoxigenin and biotin, respectively. The method proved to be very sensitive with the ability to detect down to 1.2 pg/µL of pure fungal DNA. Furthermore, when the assay was applied in artificially contaminated samples, low detection limits were determined, in particular 1.0 CFU/50 g and 45.7 spores/50 g for yeasts and moulds, respectively. Overall, a rapid (24–48 h) and reliable assay was developed for the detection of fungi that could be applied for POC applications.Lena Du, Zhongchang Wang & Guozhong Zhao
Novel intelligent devices: Two-dimensional materials based memristors Journal Article
FRONTIERS OF PHYSICS, 17 (2), pp. 23602, 2022.
@article{Du2022,
title = {Novel intelligent devices: Two-dimensional materials based memristors},
author = {Lena Du, Zhongchang Wang & Guozhong Zhao },
doi = {10.1007/s11467-022-1152-7},
year = {2022},
date = {2022-03-17},
journal = {FRONTIERS OF PHYSICS},
volume = {17},
number = {2},
pages = {23602},
abstract = {Two-dimensional (2D) materials with atomic thickness, non-volatile resistive switching feature and compatibility with the semiconducting technology are naturally a good media of memristors. 2D materials-based memristors with excellent performance, low-power consumption and high integration density can be integrated with other circuit components to implement the complicate logic computing, which will become a key driving force for the development of artificial intelligence.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Two-dimensional (2D) materials with atomic thickness, non-volatile resistive switching feature and compatibility with the semiconducting technology are naturally a good media of memristors. 2D materials-based memristors with excellent performance, low-power consumption and high integration density can be integrated with other circuit components to implement the complicate logic computing, which will become a key driving force for the development of artificial intelligence.Julio Vacacela, Anna-Lisa Schaap-Johansen, Patricia Manikova, Paolo Marcatili, Marta Prado, Yi Sun, Jon Ashley
The Protein-Templated Synthesis of Enzyme-Generated Aptamers Journal Article
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, (e202201061), 2022.
@article{Vacacela2022,
title = {The Protein-Templated Synthesis of Enzyme-Generated Aptamers},
author = {Julio Vacacela, Anna-Lisa Schaap-Johansen, Patricia Manikova, Paolo Marcatili, Marta Prado, Yi Sun, Jon Ashley},
url = {10.1002/anie.202201061},
year = {2022},
date = {2022-03-13},
journal = {ANGEWANDTE CHEMIE-INTERNATIONAL EDITION},
number = {e202201061},
abstract = {Inspired by the chemical synthesis of molecularly imprinted polymers, we demonstrated for the first time, the protein-target mediated synthesis of enzyme-generated aptamers (EGAs). We prepared pre-polymerisation mixtures containing different ratios of nucleotides, an initiator sequence and protein template and incubated each mixture with terminal deoxynucleotidyl transferase (TdT). Upon purification and rebinding of the EGAs against the target, we observed an enhancement in binding of templated-EGAs towards the target compared to a non-templated control. These results demonstrate the presence of two primary mechanisms for the formation of EGAs, namely, the binding of random sequences to the target as observed in systematic evolution of ligands by exponential enrichment (SELEX) and the dynamic competition between TdT enzyme and the target protein for binding of EGAs during synthesis. The latter mechanism serves to increase the stringency of EGA-based screening and represents a new way to develop aptamers that relies on rational design.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Inspired by the chemical synthesis of molecularly imprinted polymers, we demonstrated for the first time, the protein-target mediated synthesis of enzyme-generated aptamers (EGAs). We prepared pre-polymerisation mixtures containing different ratios of nucleotides, an initiator sequence and protein template and incubated each mixture with terminal deoxynucleotidyl transferase (TdT). Upon purification and rebinding of the EGAs against the target, we observed an enhancement in binding of templated-EGAs towards the target compared to a non-templated control. These results demonstrate the presence of two primary mechanisms for the formation of EGAs, namely, the binding of random sequences to the target as observed in systematic evolution of ligands by exponential enrichment (SELEX) and the dynamic competition between TdT enzyme and the target protein for binding of EGAs during synthesis. The latter mechanism serves to increase the stringency of EGA-based screening and represents a new way to develop aptamers that relies on rational design.A. T. Costa, N. M. R. Peres
Enhancing the hybridization of plasmons in graphene with 2D superconductor collective modes Journal Article
JOURNAL OF PHYSICS-CONDENSED MATTER, 34 (105304), 2022.
@article{Costa2022,
title = {Enhancing the hybridization of plasmons in graphene with 2D superconductor collective modes},
author = {A. T. Costa, N. M. R. Peres},
doi = {10.1088/1361-648X/ac3e1d},
year = {2022},
date = {2022-03-09},
journal = {JOURNAL OF PHYSICS-CONDENSED MATTER},
volume = {34},
number = {105304},
abstract = {We explore ways in which the close proximity between graphene sheets and monolayers of 2D superconductors can lead to hybridization between their collective excitations. We consider heterostructures formed by combinations of graphene sheets and 2D superconductor monolayers. The broad range of energies in which the graphene plasmon can exist, together with its tunability, makes such heterostructures promising platforms for probing the many-body physics of superconductors. We show that the hybridization between the graphene plasmon and the Bardasis-Schrieffer mode of a 2D superconductor results in clear signatures on the near-field reflection coefficient of the heterostructure, which in principle can be observed in scanning near-field microscopy experiments.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}We explore ways in which the close proximity between graphene sheets and monolayers of 2D superconductors can lead to hybridization between their collective excitations. We consider heterostructures formed by combinations of graphene sheets and 2D superconductor monolayers. The broad range of energies in which the graphene plasmon can exist, together with its tunability, makes such heterostructures promising platforms for probing the many-body physics of superconductors. We show that the hybridization between the graphene plasmon and the Bardasis-Schrieffer mode of a 2D superconductor results in clear signatures on the near-field reflection coefficient of the heterostructure, which in principle can be observed in scanning near-field microscopy experiments.Sebastian Calderon V, Rafael V. Ferreira, Deepyanti Taneja, RT Jayanth, Langyan Zhou, Ricardo M. Ribeiro, Deji Akinwande, and Paulo J. Ferreira
Atomic Electrostatic Maps of Point Defects in MoS2 Journal Article
NANO LETTERS, 21 (24), pp. 10157-10164, 2022.
@article{V2022,
title = {Atomic Electrostatic Maps of Point Defects in MoS2},
author = {Sebastian Calderon V, Rafael V. Ferreira, Deepyanti Taneja, RT Jayanth, Langyan Zhou, Ricardo M. Ribeiro, Deji Akinwande, and Paulo J. Ferreira},
doi = {10.1021/acs.nanolett.1c02334},
year = {2022},
date = {2022-03-05},
journal = {NANO LETTERS},
volume = {21},
number = {24},
pages = {10157-10164},
abstract = {In this study, we use differential phase contrast images obtained by scanning transmission electron microscopy combined with computer simulations to map the atomic electrostatic fields of MoS2 monolayers and investigate the effect of sulfur monovacancies and divancancies on the atomic electric field and total charge distribution. A significant redistribution of the electric field in the regions containing defects is observed, with a progressive decrease in the strength of the projected electric field for each sulfur atom removed from its position. The electric field strength at the sulfur monovacancy sites is reduced by approximately 50% and nearly vanishes at the divacancy sites, where it drops to around 15% of the original value, demonstrating the tendency of these defects to attract positively charged ions or particles. In addition, the absence of the sulfur atoms leads to an inversion in the polarity of the total charge distribution in these regions.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}In this study, we use differential phase contrast images obtained by scanning transmission electron microscopy combined with computer simulations to map the atomic electrostatic fields of MoS2 monolayers and investigate the effect of sulfur monovacancies and divancancies on the atomic electric field and total charge distribution. A significant redistribution of the electric field in the regions containing defects is observed, with a progressive decrease in the strength of the projected electric field for each sulfur atom removed from its position. The electric field strength at the sulfur monovacancy sites is reduced by approximately 50% and nearly vanishes at the divacancy sites, where it drops to around 15% of the original value, demonstrating the tendency of these defects to attract positively charged ions or particles. In addition, the absence of the sulfur atoms leads to an inversion in the polarity of the total charge distribution in these regions.Maria Daniela Silva, António Lima, Nuno Marçal, Luís Dias, Miguel Gama, Sanna Sillankorva
Identification of the Bacterial Pathogens in Children with Otitis Media: A Study in the Northwestern Portuguese District of Braga Journal Article
MICROORGANISMS, 10 (1), 2022.
@article{Silva2022,
title = {Identification of the Bacterial Pathogens in Children with Otitis Media: A Study in the Northwestern Portuguese District of Braga},
author = {Maria Daniela Silva, António Lima, Nuno Marçal, Luís Dias, Miguel Gama, Sanna Sillankorva},
doi = {10.3390/microorganisms10010054},
year = {2022},
date = {2022-03-04},
journal = {MICROORGANISMS},
volume = {10},
number = {1},
abstract = {Understanding the bacterial etiology of otitis media (OM) is important when designing and evaluating the best course of treatment. This study analyzed middle ear fluid (MEF) and nasopharynx (NP) samples collected from 49 children with OM undergoing myringotomy in the northwestern Portuguese district of Braga. A correlation between species in the NP and MEF was observed following pathogen detection by culture and quantitative polymerase chain reaction (qPCR) methods. Bacterial identification using culturing methods showed that Moraxella catarrhalis was the most representative in NP and MEF, followed by Streptococcus pneumoniae. However, qPCR of MEF showed a higher prevalence (61%) of Haemophilus influenzae. S. pneumoniae was not the most frequently identified species, but it still remains one of the leading causes of OM in this region despite 93.9% of the children being vaccinated with the pneumococcal conjugate vaccine. Furthermore, 46% of the samples analyzed by qPCR identified more than two bacterial species. M. catarrhalis and S. pneumoniae were the most frequent combination identified in NP and MEF samples by culturing methods. Additionally, a few NP and MEF samples simultaneously presented the three main otopathogens. These results point out that polymicrobial infections play an important role in OM. Further studies characterizing the serotypes of the strains isolated, their resistance profile, and their biofilm forming ability would help in the development of more targeted strategies against otitis media.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Understanding the bacterial etiology of otitis media (OM) is important when designing and evaluating the best course of treatment. This study analyzed middle ear fluid (MEF) and nasopharynx (NP) samples collected from 49 children with OM undergoing myringotomy in the northwestern Portuguese district of Braga. A correlation between species in the NP and MEF was observed following pathogen detection by culture and quantitative polymerase chain reaction (qPCR) methods. Bacterial identification using culturing methods showed that Moraxella catarrhalis was the most representative in NP and MEF, followed by Streptococcus pneumoniae. However, qPCR of MEF showed a higher prevalence (61%) of Haemophilus influenzae. S. pneumoniae was not the most frequently identified species, but it still remains one of the leading causes of OM in this region despite 93.9% of the children being vaccinated with the pneumococcal conjugate vaccine. Furthermore, 46% of the samples analyzed by qPCR identified more than two bacterial species. M. catarrhalis and S. pneumoniae were the most frequent combination identified in NP and MEF samples by culturing methods. Additionally, a few NP and MEF samples simultaneously presented the three main otopathogens. These results point out that polymicrobial infections play an important role in OM. Further studies characterizing the serotypes of the strains isolated, their resistance profile, and their biofilm forming ability would help in the development of more targeted strategies against otitis media.Rúben F Santos, Bruno M C Oliveira, Liliane C G Savaris, Paulo J Ferreira, Manuel F Vieira
Seedless Cu Electroplating on Ru-W Thin Films for Metallisation of Advanced Interconnects Journal Article
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 23 (1891), 2022.
@article{Santos2022,
title = {Seedless Cu Electroplating on Ru-W Thin Films for Metallisation of Advanced Interconnects},
author = {Rúben F Santos, Bruno M C Oliveira, Liliane C G Savaris, Paulo J Ferreira, Manuel F Vieira},
doi = {10.3390/ijms23031891},
year = {2022},
date = {2022-03-03},
journal = {INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES},
volume = {23},
number = {1891},
abstract = {For decades, Ta/TaN has been the industry standard for a diffusion barrier against Cu in interconnect metallisation. The continuous miniaturisation of transistors and interconnects into the nanoscale are pushing conventional materials to their physical limits and creating the need to replace them. Binary metallic systems, such as Ru-W, have attracted considerable attention as possible replacements due to a combination of electrical and diffusion barrier properties and the capability of direct Cu electroplating. The process of Cu electrodeposition on Ru-W is of fundamental importance in order to create thin, continuous, and adherent films for advanced interconnect metallisation. This work investigates the effects of the current density and application method on the electro-crystallisation behaviour of Cu. The film structure, morphology, and chemical composition were assessed by digital microscopy, atomic force microscopy, scanning and transmission electron microscopies, energy-dispersive X-ray spectroscopy, and X-ray diffraction. The results show that it was possible to form a thin Cu film on Ru-W with interfacial continuity for current densities higher than 5 mA center dot cm(-2); however, the substrate regions around large Cu particles remained uncovered. Pulse-reverse current application appears to be more beneficial than direct current as it decreased the average Cu particle size.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}For decades, Ta/TaN has been the industry standard for a diffusion barrier against Cu in interconnect metallisation. The continuous miniaturisation of transistors and interconnects into the nanoscale are pushing conventional materials to their physical limits and creating the need to replace them. Binary metallic systems, such as Ru-W, have attracted considerable attention as possible replacements due to a combination of electrical and diffusion barrier properties and the capability of direct Cu electroplating. The process of Cu electrodeposition on Ru-W is of fundamental importance in order to create thin, continuous, and adherent films for advanced interconnect metallisation. This work investigates the effects of the current density and application method on the electro-crystallisation behaviour of Cu. The film structure, morphology, and chemical composition were assessed by digital microscopy, atomic force microscopy, scanning and transmission electron microscopies, energy-dispersive X-ray spectroscopy, and X-ray diffraction. The results show that it was possible to form a thin Cu film on Ru-W with interfacial continuity for current densities higher than 5 mA center dot cm(-2); however, the substrate regions around large Cu particles remained uncovered. Pulse-reverse current application appears to be more beneficial than direct current as it decreased the average Cu particle size.R. Silva-Carvalho, T. Leão, A. I. Bourbon, C. Gonçalves, L. M. Pastrana, P. Parpot, I. Amorim, A. M. Tomás and F. M. Gama
Hyaluronic acid-amphotericin B nanocomplexes: a promising anti-leishmanial drug delivery system Journal Article
BIOMATERIALS SCIENCE, 2022.
@article{Silva-Carvalho2022,
title = {Hyaluronic acid-amphotericin B nanocomplexes: a promising anti-leishmanial drug delivery system},
author = {R. Silva-Carvalho, T. Leão, A. I. Bourbon, C. Gonçalves, L. M. Pastrana, P. Parpot, I. Amorim, A. M. Tomás and F. M. Gama },
url = {https://doi.org/10.1039/D1BM01769A},
doi = {10.1039/d1bm01769a},
year = {2022},
date = {2022-02-23},
journal = {BIOMATERIALS SCIENCE},
abstract = {The development of an effective amphotericin B (AmB) formulation to replace actual treatments available for leishmaniasis, which present serious drawbacks, is a challenge. Here we report the development of hyaluronic acid–amphotericin B self-assembled nanocomplexes (HA–AmB), processed by freeze-drying (FD) or nano spray-drying (SD), using a simple process that favors the non-covalent drug–polysaccharide association in an amorphous state. These water-soluble formulations, which presented a nanometric size (300–600 nm), high colloidal stability (zeta potential around −39 mV) and an AmB loading (15–18%) in aggregated and super aggregated states, demonstrated less in vitro cytotoxic and hemolytic effects compared to the free-drug. A significant decrease in the number of intramacrophagic L. infantum amastigotes upon treatment (IC50 of 0.026 and 0.030 μM for HA–AmB FD and HA–AmB SD, respectively) was also observed, and the best selectivity index (SI) was observed for the HA–AmB SD nanocomplex (SI of 651). Intravenous administration of the HA–AmB SD nanocomplex for 3 alternate days showed an effective parasite reduction in the spleen and liver of C57BL/6 mice without signs of toxicity commonly observed upon free-AmB treatment. Although lower than that achieved with AmBisome® in the liver, the observed parasite reduction for the nanocomplex was of a similar order of magnitude. The efficacy, stability, safety and low cost of the HA–AmB SD nanocomplex highlight its potential as an alternative treatment for leishmaniasis.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}The development of an effective amphotericin B (AmB) formulation to replace actual treatments available for leishmaniasis, which present serious drawbacks, is a challenge. Here we report the development of hyaluronic acid–amphotericin B self-assembled nanocomplexes (HA–AmB), processed by freeze-drying (FD) or nano spray-drying (SD), using a simple process that favors the non-covalent drug–polysaccharide association in an amorphous state. These water-soluble formulations, which presented a nanometric size (300–600 nm), high colloidal stability (zeta potential around −39 mV) and an AmB loading (15–18%) in aggregated and super aggregated states, demonstrated less in vitro cytotoxic and hemolytic effects compared to the free-drug. A significant decrease in the number of intramacrophagic L. infantum amastigotes upon treatment (IC50 of 0.026 and 0.030 μM for HA–AmB FD and HA–AmB SD, respectively) was also observed, and the best selectivity index (SI) was observed for the HA–AmB SD nanocomplex (SI of 651). Intravenous administration of the HA–AmB SD nanocomplex for 3 alternate days showed an effective parasite reduction in the spleen and liver of C57BL/6 mice without signs of toxicity commonly observed upon free-AmB treatment. Although lower than that achieved with AmBisome® in the liver, the observed parasite reduction for the nanocomplex was of a similar order of magnitude. The efficacy, stability, safety and low cost of the HA–AmB SD nanocomplex highlight its potential as an alternative treatment for leishmaniasis.Miguel A. Castillo, William P. Wardley, and Martin Lopez-Garcia
ACS PHOTONICS, 8 (12), pp. 3651-3651, 2022.
@article{Castillo2022,
title = {Light-Dependent Morphological Changes Can Tune Light Absorption in Iridescent Plant Chloroplasts: A Numerical Study Using Biologically Realistic Data},
author = {Miguel A. Castillo, William P. Wardley, and Martin Lopez-Garcia},
url = {https://doi.org/10.1021/acsphotonics.0c01600},
doi = {10.1021/acsphotonics.0c01600},
year = {2022},
date = {2022-02-20},
journal = {ACS PHOTONICS},
volume = {8},
number = {12},
pages = {3651-3651},
abstract = {In higher plants and algae, chloroplasts are the organelle responsible for photosynthesis. Previous work has focused mostly on the role of the photosynthetic pigments; however, recent advances demonstrated that light interactions within chloroplasts could make use of intrinsic nanophotonic properties to manipulate light to enhance light-harvesting efficiency. We hypothesize that the documented morphological changes undergone by chloroplasts under varying light conditions can highly influence the light-harvesting properties due to nanophotonic effects. In this work, we focused on a type of specialized chloroplast known as the iridoplast, which has intrinsic photonic crystal properties such as strong reflectance and slow light effects. We studied how the photonic properties of iridoplasts are affected by light-induced dynamic changes using realistic data extracted from previous reports. The results show a reflectance red-shift from blue to green under increasing light intensity. Consequently, the light absorption enhancement induced by slow light is also red-shifted. We also showed that the photonic properties are resilient to biologically realistic levels of disorder in the structure. We extended this analysis to another photonic nanostructure-containing chloroplast, known as a bizonoplast, and found similar results, pointing toward similar properties in different plant species. We finally demonstrated that all types of chloroplasts can tune light absorption depending on light conditions. In general, our study opens the door to understanding how dynamic morphological changes in chloroplasts can affect light scattering and absorption.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}In higher plants and algae, chloroplasts are the organelle responsible for photosynthesis. Previous work has focused mostly on the role of the photosynthetic pigments; however, recent advances demonstrated that light interactions within chloroplasts could make use of intrinsic nanophotonic properties to manipulate light to enhance light-harvesting efficiency. We hypothesize that the documented morphological changes undergone by chloroplasts under varying light conditions can highly influence the light-harvesting properties due to nanophotonic effects. In this work, we focused on a type of specialized chloroplast known as the iridoplast, which has intrinsic photonic crystal properties such as strong reflectance and slow light effects. We studied how the photonic properties of iridoplasts are affected by light-induced dynamic changes using realistic data extracted from previous reports. The results show a reflectance red-shift from blue to green under increasing light intensity. Consequently, the light absorption enhancement induced by slow light is also red-shifted. We also showed that the photonic properties are resilient to biologically realistic levels of disorder in the structure. We extended this analysis to another photonic nanostructure-containing chloroplast, known as a bizonoplast, and found similar results, pointing toward similar properties in different plant species. We finally demonstrated that all types of chloroplasts can tune light absorption depending on light conditions. In general, our study opens the door to understanding how dynamic morphological changes in chloroplasts can affect light scattering and absorption.Lorena García-Hevia, Íñigo Casafont, Jessica Oliveira, Nuria Terán, Mónica L.Fanarraga, Juan Gallo, Manuel Bañobre-López
Bioactive Materials, (8), pp. 153-164, 2022.
@article{García-Hevia2022,
title = {Magnetic lipid nanovehicles synergize the controlled thermal release of chemotherapeutics with magnetic ablation while enabling non-invasive monitoring by MRI for melanoma theranostics},
author = {Lorena García-Hevia, Íñigo Casafont, Jessica Oliveira, Nuria Terán, Mónica L.Fanarraga, Juan Gallo, Manuel Bañobre-López},
url = {https://doi.org/10.1016/j.bioactmat.2021.06.009},
doi = {10.1016/j.bioactmat.2021.06.009},
year = {2022},
date = {2022-02-18},
journal = {Bioactive Materials},
number = {8},
pages = {153-164},
abstract = {Nowadays, a number of promising strategies are being developed that aim at combining diagnostic and therapeutic capabilities into clinically effective formulations. Thus, the combination of a modified release provided by an organic encapsulation and the intrinsic physico-chemical properties from an inorganic counterpart opens new perspectives in biomedical applications. Herein, a biocompatible magnetic lipid nanocomposite vehicle was developed through an efficient, green and simple method to simultaneously incorporate magnetic nanoparticles and an anticancer drug (doxorubicin) into a natural nano-matrix. The theranostic performance of the final magnetic formulation was validated in vitro and in vivo, in melanoma tumors. The systemic administration of the proposed magnetic hybrid nanocomposite carrier enhanced anti-tumoral activity through a synergistic combination of magnetic hyperthermia effects and antimitotic therapy, together with MRI reporting capability. The application of an alternating magnetic field was found to play a dual role, (i) acting as an extra layer of control (remote, on-demand) over the chemotherapy release and (ii) inducing a local thermal ablation of tumor cells. This combination of chemotherapy with thermotherapy establishes a synergistic platform for the treatment of solid malignant tumors under lower drug dosing schemes, which may realize the dual goal of reduced systemic toxicity and enhanced anti-tumoral efficacy.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Nowadays, a number of promising strategies are being developed that aim at combining diagnostic and therapeutic capabilities into clinically effective formulations. Thus, the combination of a modified release provided by an organic encapsulation and the intrinsic physico-chemical properties from an inorganic counterpart opens new perspectives in biomedical applications. Herein, a biocompatible magnetic lipid nanocomposite vehicle was developed through an efficient, green and simple method to simultaneously incorporate magnetic nanoparticles and an anticancer drug (doxorubicin) into a natural nano-matrix. The theranostic performance of the final magnetic formulation was validated in vitro and in vivo, in melanoma tumors. The systemic administration of the proposed magnetic hybrid nanocomposite carrier enhanced anti-tumoral activity through a synergistic combination of magnetic hyperthermia effects and antimitotic therapy, together with MRI reporting capability. The application of an alternating magnetic field was found to play a dual role, (i) acting as an extra layer of control (remote, on-demand) over the chemotherapy release and (ii) inducing a local thermal ablation of tumor cells. This combination of chemotherapy with thermotherapy establishes a synergistic platform for the treatment of solid malignant tumors under lower drug dosing schemes, which may realize the dual goal of reduced systemic toxicity and enhanced anti-tumoral efficacy.Alejandro Garrido-Maestu, Marta Prado
Naked-eye detection strategies coupled with isothermal nucleic acid amplification techniques for the detection of human pathogens Journal Article
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY, 2022.
@article{Garrido-Maestu2022,
title = {Naked-eye detection strategies coupled with isothermal nucleic acid amplification techniques for the detection of human pathogens},
author = {Alejandro Garrido-Maestu, Marta Prado},
url = {https://doi.org/10.1111/1541-4337.12902},
doi = {10.1111/1541-4337.12902},
year = {2022},
date = {2022-02-04},
journal = {COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY},
abstract = {Nucleic acid amplification-based techniques have gained acceptance by the scientific, and general, community as reference methodologies for many different applications. Since the development of the gold standard of these techniques, polymerase chain reaction (PCR), back in the 1980s many improvements have been made, and alternative techniques emerged reporting improvements over PCR. Among these, isothermal amplification approaches resulted of particular interest as could overcome the need of specialized equipment to accurately control temperature changes, but it was after year 2000 that these techniques have flourished in a huge number of novel alternatives with many different degrees of complexities and requirements. An added value is their possibility to be combined with many different naked-eye detection strategies, simplifying the resources needed, allowing to reduce cost, and serving as the basis for novel developments of lab-on-chip systems, and miniaturized devices, for point-of-care testing. In this review, we will go over different types of naked-eye detection strategies, combined with isothermal amplification. This will provide the readers up-to-date information for them to select the most appropriate strategies depending on the particular needs and resources for their experimental setup.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Nucleic acid amplification-based techniques have gained acceptance by the scientific, and general, community as reference methodologies for many different applications. Since the development of the gold standard of these techniques, polymerase chain reaction (PCR), back in the 1980s many improvements have been made, and alternative techniques emerged reporting improvements over PCR. Among these, isothermal amplification approaches resulted of particular interest as could overcome the need of specialized equipment to accurately control temperature changes, but it was after year 2000 that these techniques have flourished in a huge number of novel alternatives with many different degrees of complexities and requirements. An added value is their possibility to be combined with many different naked-eye detection strategies, simplifying the resources needed, allowing to reduce cost, and serving as the basis for novel developments of lab-on-chip systems, and miniaturized devices, for point-of-care testing. In this review, we will go over different types of naked-eye detection strategies, combined with isothermal amplification. This will provide the readers up-to-date information for them to select the most appropriate strategies depending on the particular needs and resources for their experimental setup.Xiaojuan Gong, Jiapeng Liu, Jianwei Teng, Xianjue Ye, Zhongchang Wang, Ruilin Laia Yunping Li
ADVANCED POWDER TECHNOLOGY, 33 (103436), 2022.
@article{Gong2022,
title = { Context Sensitive Links 1 de 1 Particle size dependent Ag precipitation at different temperature and the resultant oxidation behavior of Cu-5Ag powders},
author = {Xiaojuan Gong, Jiapeng Liu, Jianwei Teng, Xianjue Ye, Zhongchang Wang, Ruilin Laia Yunping Li},
doi = {10.1016/j.apt.2022.103436},
year = {2022},
date = {2022-01-31},
journal = {ADVANCED POWDER TECHNOLOGY},
volume = {33},
number = {103436},
abstract = {Ag precipitation and the resultant oxidation behavior of Cu-5wt.%Ag powder of various particle sizes were investigated. During low-temperature aging (250 celcius), Ag precipitation along grain boundaries (GBs) in particle surface is closely dependent on particle size. The depth of Ag precipitation-free area (Ag-PFA) are 0 mu m, 1.17 mu m and 2.78 mu m for S, M and L samples, respectively. While for high-temperature aging (550 degrees C), the Ag precipitation was independent on particle size. This is ascribed to that Ag diffusion in particles at low temperature is dominated by both surface diffusion and GB diffusion, while at the higher temperature, the volume diffusion also becomes dominant. The formation of a continuous 3D-Ag network along GBs in particle surface can significantly improve the oxidation resistance of powders. (C) 2022 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Ag precipitation and the resultant oxidation behavior of Cu-5wt.%Ag powder of various particle sizes were investigated. During low-temperature aging (250 celcius), Ag precipitation along grain boundaries (GBs) in particle surface is closely dependent on particle size. The depth of Ag precipitation-free area (Ag-PFA) are 0 mu m, 1.17 mu m and 2.78 mu m for S, M and L samples, respectively. While for high-temperature aging (550 degrees C), the Ag precipitation was independent on particle size. This is ascribed to that Ag diffusion in particles at low temperature is dominated by both surface diffusion and GB diffusion, while at the higher temperature, the volume diffusion also becomes dominant. The formation of a continuous 3D-Ag network along GBs in particle surface can significantly improve the oxidation resistance of powders. (C) 2022 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.Briliant Adhi Prabowo, Elisabete Fernandes, Paulo Freitas
A pump-free microfluidic device for fast magnetic labeling of ischemic stroke biomarkers Journal Article
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2022.
@article{Prabowo2022,
title = { A pump-free microfluidic device for fast magnetic labeling of ischemic stroke biomarkers},
author = {Briliant Adhi Prabowo, Elisabete Fernandes, Paulo Freitas},
url = {https://doi.org/10.1007/s00216-022-03915-w},
doi = {10.1007/s00216-022-03915-w},
year = {2022},
date = {2022-01-27},
journal = {ANALYTICAL AND BIOANALYTICAL CHEMISTRY},
abstract = {This research proposes a low-cost and simple operation microfluidic chip to enhance the magnetic labeling efficiency of two ischemic stroke biomarkers: cellular fibronectin (c-Fn) and matrix metallopeptidase 9 (MMP9). This fully portable and pump-free microfluidic chip is operated based on capillary attractions without any external power source and battery. It uses an integrated cellulose sponge to absorb the samples. At the same time, a magnetic field is aligned to hold the target labeled by the magnetic nanoparticles (MNPs) in the pre-concentrated chamber. By using this approach, the specific targets are labeled from the beginning of the sampling process without preliminary sample purification. The proposed study enhanced the labeling efficiency from 1 h to 15 min. The dynamic interactions occur in the serpentine channel, while the crescent formation of MNPs in the pre-concentrated chamber, acting as a magnetic filter, improves the biomarker-MNP interaction. The labeling optimization by the proposed device influences the dynamic range by optimizing the MNP ratio to fit the linear range across the clinical cutoff value. The limits of detection (LODs) of 2.8 ng/mL and 54.6 ng/mL of c-Fn measurement were achieved for undiluted and four times dilutions of MNP, respectively. While for MMP9, the LODs were 11.5 ng/mL for undiluted functionalized MNP and 132 ng/mL for four times dilutions of functionalized MNP. The results highlight the potential use of this device for clinical sample preparation and specific magnetic target labeling. When combined with a detection system, it could also be used as an integrated component of a point-of-care platform.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}This research proposes a low-cost and simple operation microfluidic chip to enhance the magnetic labeling efficiency of two ischemic stroke biomarkers: cellular fibronectin (c-Fn) and matrix metallopeptidase 9 (MMP9). This fully portable and pump-free microfluidic chip is operated based on capillary attractions without any external power source and battery. It uses an integrated cellulose sponge to absorb the samples. At the same time, a magnetic field is aligned to hold the target labeled by the magnetic nanoparticles (MNPs) in the pre-concentrated chamber. By using this approach, the specific targets are labeled from the beginning of the sampling process without preliminary sample purification. The proposed study enhanced the labeling efficiency from 1 h to 15 min. The dynamic interactions occur in the serpentine channel, while the crescent formation of MNPs in the pre-concentrated chamber, acting as a magnetic filter, improves the biomarker-MNP interaction. The labeling optimization by the proposed device influences the dynamic range by optimizing the MNP ratio to fit the linear range across the clinical cutoff value. The limits of detection (LODs) of 2.8 ng/mL and 54.6 ng/mL of c-Fn measurement were achieved for undiluted and four times dilutions of MNP, respectively. While for MMP9, the LODs were 11.5 ng/mL for undiluted functionalized MNP and 132 ng/mL for four times dilutions of functionalized MNP. The results highlight the potential use of this device for clinical sample preparation and specific magnetic target labeling. When combined with a detection system, it could also be used as an integrated component of a point-of-care platform.Vanesa Romero, Isela Lavilla, Alicia Álvarez, Carlos Bendicho, Begoña Espiña, Laura M Salonen
ANALYTICA CHIMICA ACTA, 1191 (339293), 2022.
@article{Romero2022,
title = {Covalent organic framework as adsorbent for ultrasound-assisted dispersive (micro)solid phase extraction of polycyclic synthetic fragrances from seawater followed by fluorescent determination},
author = {Vanesa Romero, Isela Lavilla, Alicia Álvarez, Carlos Bendicho, Begoña Espiña, Laura M Salonen},
url = {https://doi.org/10.1016/j.aca.2021.339293},
doi = {10.1016/j.aca.2021.339293},
year = {2022},
date = {2022-01-25},
journal = {ANALYTICA CHIMICA ACTA},
volume = {1191},
number = {339293},
abstract = {In this work, a new analytical approach based on ultrasound-assisted dispersive (micro)solid phase extraction (US-D-μSPE) using TpBD-Me2 covalent organic framework (COF) as adsorbent for simple, rapid and selective fluorescent determination of two polycyclic synthetic fragrances in seawater, i.e., 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethyl-cyclopenta-(γ)-2-benzopyran (HHCB), branded galaxolide®, and 7-acetyl-1,1,3,4,4,6-hexamethyltetralin (AHTN), branded tonalide®, is proposed. Different parameters involved in both adsorption and desorption steps were optimized in order to obtain the best results. High adsorption efficiencies in the range of 91.2-97.8% were achieved for both analytes. Desorption efficiencies of ∼98% for AHTN and HHCB were obtained using methanol as solvent, rendering the material recyclable with merely minor losses in adsorption efficiency after five consecutive cycles of adsorption/desorption. Limits of detection (LODs) were 0.082 μg L-1 and 0.070 μg L-1 for AHTN and HHCB, respectively. The proposed method was successfully applied for the analysis of seawater without the need for a previous sample treatment, e.g., pH adjustment. Recoveries in the range of 90.4-101.2% with a relative standard deviation of 5.8% were obtained for both fragrances. The results proved the great capacity of TpBD-Me2 COF for the selective sorption of polycyclic fragrances in combination with fluorescent detection, being highly promising for application to environmental monitoring of other emerging organic pollutants.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}In this work, a new analytical approach based on ultrasound-assisted dispersive (micro)solid phase extraction (US-D-μSPE) using TpBD-Me2 covalent organic framework (COF) as adsorbent for simple, rapid and selective fluorescent determination of two polycyclic synthetic fragrances in seawater, i.e., 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethyl-cyclopenta-(γ)-2-benzopyran (HHCB), branded galaxolide®, and 7-acetyl-1,1,3,4,4,6-hexamethyltetralin (AHTN), branded tonalide®, is proposed. Different parameters involved in both adsorption and desorption steps were optimized in order to obtain the best results. High adsorption efficiencies in the range of 91.2-97.8% were achieved for both analytes. Desorption efficiencies of ∼98% for AHTN and HHCB were obtained using methanol as solvent, rendering the material recyclable with merely minor losses in adsorption efficiency after five consecutive cycles of adsorption/desorption. Limits of detection (LODs) were 0.082 μg L-1 and 0.070 μg L-1 for AHTN and HHCB, respectively. The proposed method was successfully applied for the analysis of seawater without the need for a previous sample treatment, e.g., pH adjustment. Recoveries in the range of 90.4-101.2% with a relative standard deviation of 5.8% were obtained for both fragrances. The results proved the great capacity of TpBD-Me2 COF for the selective sorption of polycyclic fragrances in combination with fluorescent detection, being highly promising for application to environmental monitoring of other emerging organic pollutants.Jessica Caldwell, Patricia Taladriz-Blanco, Roman Lehnera, Andriy Lubskyy, Roberto Diego Ortuso, Barbara Rothen-Rutishauser, Alke Petri-Finkad
The micro-, submicron-, and nanoplastic hunt: A review of detection methods for plastic particles Journal Article
Chemosphere, 293 , pp. 133514, 2022.
@article{Caldwell2022,
title = {The micro-, submicron-, and nanoplastic hunt: A review of detection methods for plastic particles},
author = {Jessica Caldwell, Patricia Taladriz-Blanco, Roman Lehnera, Andriy Lubskyy, Roberto Diego Ortuso, Barbara Rothen-Rutishauser, Alke Petri-Finkad},
url = {https://doi.org/10.1016/j.chemosphere.2022.133514},
doi = {10.1016/j.chemosphere.2022.133514},
year = {2022},
date = {2022-01-25},
journal = {Chemosphere},
volume = {293},
pages = {133514},
abstract = {Plastic particle pollution has been shown to be almost completely ubiquitous within our surrounding environment. This ubiquity in combination with a variety of unique properties (e.g. density, hydrophobicity, surface functionalization, particle shape and size, transition temperatures, and mechanical properties) and the ever-increasing levels of plastic production and use has begun to garner heightened levels of interest within the scientific community. However, as a result of these properties, plastic particles are often reported to be challenging to study in complex (i.e. real) environments. Therefore, this review aims to summarize research generated on multiple facets of the micro- and nanoplastics field; ranging from size and shape definitions to detection and characterization techniques to generating reference particles; in order to provide a more complete understanding of the current strategies for the analysis of plastic particles. This information is then used to provide generalized recommendations for researchers to consider as they attempt to study plastics in analytically complex environments; including method validation using reference particles obtained via the presented creation methods, encouraging efforts towards method standardization through the reporting of all technical details utilized in a study, and providing analytical pathway recommendations depending upon the exact knowledge desired and samples being studied.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Plastic particle pollution has been shown to be almost completely ubiquitous within our surrounding environment. This ubiquity in combination with a variety of unique properties (e.g. density, hydrophobicity, surface functionalization, particle shape and size, transition temperatures, and mechanical properties) and the ever-increasing levels of plastic production and use has begun to garner heightened levels of interest within the scientific community. However, as a result of these properties, plastic particles are often reported to be challenging to study in complex (i.e. real) environments. Therefore, this review aims to summarize research generated on multiple facets of the micro- and nanoplastics field; ranging from size and shape definitions to detection and characterization techniques to generating reference particles; in order to provide a more complete understanding of the current strategies for the analysis of plastic particles. This information is then used to provide generalized recommendations for researchers to consider as they attempt to study plastics in analytically complex environments; including method validation using reference particles obtained via the presented creation methods, encouraging efforts towards method standardization through the reporting of all technical details utilized in a study, and providing analytical pathway recommendations depending upon the exact knowledge desired and samples being studied.R. Ortiz, J. C. Sancho-García, and J. Fernández-Rossier
Frustrated magnetic interactions in a cyclacene crystal Journal Article
PHYSICAL REVIEW MATERIALS, 6 (1), pp. 014406, 2022.
@article{Ortiz2022,
title = {Frustrated magnetic interactions in a cyclacene crystal},
author = {R. Ortiz, J. C. Sancho-García, and J. Fernández-Rossier},
url = {https://doi.org/10.1103/PhysRevMaterials.6.014406},
doi = {10.1103/PhysRevMaterials.6.014406},
year = {2022},
date = {2022-01-19},
journal = {PHYSICAL REVIEW MATERIALS},
volume = {6},
number = {1},
pages = {014406},
abstract = {We study the emergence of magnetism and its interplay with structural properties in a two-dimensional molecular crystal of cyclacenes, using density functional theory (DFT). Isolated cyclacenes with an even number of fused benzenes host two unpaired electrons in two topological protected zero modes, at the top and bottom carbon rings that form the molecule. We show that, in the gas phase, electron repulsion promotes an open-shell singlet with strong intramolecular antiferromagnetic exchange. We consider a closed packing triangular lattice crystal phase and we find a strong dependence of the band structure and magnetic interactions on the rotation angle of the cyclacenes with respect to the crystal lattice vectors. The orientational ground state maximizes the intermolecular hybridization, yet local moments survive. Intermolecular exchange is computed to be antiferromagnetic, and DFT predicts a broken symmetry 120 degrees spin phase reflecting the frustration of the intermolecular spin coupling. Thus, the cyclacene crystal realizes a bilayer of two antiferromagnetically coupled S = 1/2 triangular lattices. Our results provide a bottom-up route towards carbon based strongly correlated platforms in two dimensions.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}We study the emergence of magnetism and its interplay with structural properties in a two-dimensional molecular crystal of cyclacenes, using density functional theory (DFT). Isolated cyclacenes with an even number of fused benzenes host two unpaired electrons in two topological protected zero modes, at the top and bottom carbon rings that form the molecule. We show that, in the gas phase, electron repulsion promotes an open-shell singlet with strong intramolecular antiferromagnetic exchange. We consider a closed packing triangular lattice crystal phase and we find a strong dependence of the band structure and magnetic interactions on the rotation angle of the cyclacenes with respect to the crystal lattice vectors. The orientational ground state maximizes the intermolecular hybridization, yet local moments survive. Intermolecular exchange is computed to be antiferromagnetic, and DFT predicts a broken symmetry 120 degrees spin phase reflecting the frustration of the intermolecular spin coupling. Thus, the cyclacene crystal realizes a bilayer of two antiferromagnetically coupled S = 1/2 triangular lattices. Our results provide a bottom-up route towards carbon based strongly correlated platforms in two dimensions.Sarah Azinheiro, Joana Carvalho, Pablo Fuciños, Lorenzo Pastrana, Marta Prado, Alejandro Garrido-Maestu
Short pre-enrichment and modified matrix lysis. A comparative study towards same-day detection of Listeria monocytogenes Journal Article
LWT, 154 , 2022.
@article{Azinheiro2022,
title = {Short pre-enrichment and modified matrix lysis. A comparative study towards same-day detection of Listeria monocytogenes},
author = {Sarah Azinheiro, Joana Carvalho, Pablo Fuciños, Lorenzo Pastrana, Marta Prado, Alejandro Garrido-Maestu},
url = {https://doi.org/10.1016/j.lwt.2021.112900},
doi = {10.1016/j.lwt.2021.112900},
year = {2022},
date = {2022-01-15},
journal = {LWT},
volume = {154},
abstract = {Listeria monocytogenes is a foodborne pathogen of particular concern in ready-to-eat foods. Different methodologies have been published in recent years, in order to reduce the time of analysis of this pathogen but, best case scenario, all these methods allow for “next-day detection”. There is permanent need in the food industry for faster methods capable of providing accurate results, without compromising the safety of the consumers, in order to cope with nowadays' intensive production system. In the present study, two sample treatment protocols namely, short pre-enrichment and matrix lysis, were compared to determine their suitability for “same-day detection” of L. monocytogenes. Both methodologies were sensitive, specific and accurate (100%), and allowed to obtain results in one working day. In addition to this, the results obtained matched those expected as observed by the Cohen's k value obtained (1.00). However, a the major difference was observed in their limit of detection (LOD95), as the short pre-enrichment allowed to detect L. monocytogenes in samples inoculated below 10 CFU/25 g, while the matrix lysis remained in the range of 105 CFU/25 g. These results indicate that whenever a “zero tolerance” is required, the short pre-enrichment protocol must be selected.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Listeria monocytogenes is a foodborne pathogen of particular concern in ready-to-eat foods. Different methodologies have been published in recent years, in order to reduce the time of analysis of this pathogen but, best case scenario, all these methods allow for “next-day detection”. There is permanent need in the food industry for faster methods capable of providing accurate results, without compromising the safety of the consumers, in order to cope with nowadays' intensive production system. In the present study, two sample treatment protocols namely, short pre-enrichment and matrix lysis, were compared to determine their suitability for “same-day detection” of L. monocytogenes. Both methodologies were sensitive, specific and accurate (100%), and allowed to obtain results in one working day. In addition to this, the results obtained matched those expected as observed by the Cohen's k value obtained (1.00). However, a the major difference was observed in their limit of detection (LOD95), as the short pre-enrichment allowed to detect L. monocytogenes in samples inoculated below 10 CFU/25 g, while the matrix lysis remained in the range of 105 CFU/25 g. These results indicate that whenever a “zero tolerance” is required, the short pre-enrichment protocol must be selected.Ricardo Gómez-García, Ana A. Vilas-Boas, Ana Oliveira, Manuela Amorim, José A. Teixeira, Lorenzo Pastrana, Maria Manuela Pintado, Débora A. Campos
Impact of Simulated Human Gastrointestinal Digestion on the Bioactive Fraction of Upcycled Pineapple By-Products Journal Article
Foods, 11 (1) (126), 2022.
@article{Gómez-García2022,
title = {Impact of Simulated Human Gastrointestinal Digestion on the Bioactive Fraction of Upcycled Pineapple By-Products},
author = {Ricardo Gómez-García, Ana A. Vilas-Boas, Ana Oliveira, Manuela Amorim, José A. Teixeira, Lorenzo Pastrana, Maria Manuela Pintado, Débora A. Campos},
url = {https://doi.org/10.3390/foods11010126},
doi = {10.3390/foods11010126},
year = {2022},
date = {2022-01-05},
journal = {Foods},
volume = {11 (1)},
number = {126},
abstract = {Pineapple by-products (peels and stems) from fruit processing industries were evaluated to understand its potential application as a functional food. Therefore, the bioactive compounds of pineapple by-products were characterized for prebiotic and antioxidant activities. A total characterization of soluble carbohydrates profile (simples and complex carbohydrates), as well as polyphenols was performed, after removal of enzymatic fraction from pineapple crude juice, allowing the decrease of proteolytic activity and improving the other biological activities. Results showed that pineapple liquid fraction, from stem and peels, can be applied as a prebiotic enhancer, promoting the growth of five probiotic microorganisms (two strains of Lactobacillus sp. and three strains of Bifidobacterium sp.), as a single carbohydrate source. Moreover, through HPLC (High Performance Liquid Chromatography) analysis, 10 polyphenols were identified in pineapple liquid fractions, with some expected differences between both evaluated by-products. Gastrointestinal tract was simulated, in a continuous mode to understand the impact of pH changes and gastrointestinal enzymes into pineapple liquid fractions. Results showed a digestion of high molecular weight polysaccharides into small molecular weight tri-, di-, and monosaccharides. There was an increase of samples antioxidant activity through the gastrointestinal stage, followed by the release of specific polyphenols, such as chlorogenic, coumaric, and ferulic acids. The prebiotic activity did not improve throughout the simulation, in fact, the prebiotic potential decreased throughout the different stages.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Pineapple by-products (peels and stems) from fruit processing industries were evaluated to understand its potential application as a functional food. Therefore, the bioactive compounds of pineapple by-products were characterized for prebiotic and antioxidant activities. A total characterization of soluble carbohydrates profile (simples and complex carbohydrates), as well as polyphenols was performed, after removal of enzymatic fraction from pineapple crude juice, allowing the decrease of proteolytic activity and improving the other biological activities. Results showed that pineapple liquid fraction, from stem and peels, can be applied as a prebiotic enhancer, promoting the growth of five probiotic microorganisms (two strains of Lactobacillus sp. and three strains of Bifidobacterium sp.), as a single carbohydrate source. Moreover, through HPLC (High Performance Liquid Chromatography) analysis, 10 polyphenols were identified in pineapple liquid fractions, with some expected differences between both evaluated by-products. Gastrointestinal tract was simulated, in a continuous mode to understand the impact of pH changes and gastrointestinal enzymes into pineapple liquid fractions. Results showed a digestion of high molecular weight polysaccharides into small molecular weight tri-, di-, and monosaccharides. There was an increase of samples antioxidant activity through the gastrointestinal stage, followed by the release of specific polyphenols, such as chlorogenic, coumaric, and ferulic acids. The prebiotic activity did not improve throughout the simulation, in fact, the prebiotic potential decreased throughout the different stages.Antonia F. J. Uchoa, Camila P. do Valle, Denise R. Moreira, Manuel Bañobre-López, Juan Gallo, Francisco S. Dias, Michael W. Anderson & Nágila M. P. S. Ricardo
Synthesis of a KIT-6 mesoporous sulfonic acid catalyst to produce biodiesel from cashew nut oil Journal Article
Brazilian Journal of Chemical Engineering (2022), 2022.
@article{Uchoa2022,
title = {Synthesis of a KIT-6 mesoporous sulfonic acid catalyst to produce biodiesel from cashew nut oil},
author = {Antonia F. J. Uchoa, Camila P. do Valle, Denise R. Moreira, Manuel Bañobre-López, Juan Gallo, Francisco S. Dias, Michael W. Anderson & Nágila M. P. S. Ricardo},
doi = {10.1007/s43153-021-00216-0},
year = {2022},
date = {2022-01-03},
journal = {Bra