A5050501477- Advanced Memory and Neural Computing
- Neuroscience and Neural Engineering
- Ferroelectric and Negative Capacitance Devices
- Photoreceptor and optogenetics research
- Graphene research and applications
- MXene and MAX Phase Materials
- Advancements in Battery Materials
- Nanomaterials for catalytic reactions
- Quantum Dots Synthesis And Properties
- Supercapacitor Materials and Fabrication
- Graphene and Nanomaterials Applications
- Chalcogenide Semiconductor Thin Films
- Neural dynamics and brain function
- Chromosomal and Genetic Variations
- Allergic Rhinitis and Sensitization
- Animal Genetics and Reproduction
- Pigment Synthesis and Properties
- Building Energy and Comfort Optimization
- Hydrogen Storage and Materials
- Electrospun Nanofibers in Biomedical Applications
- Food Allergy and Anaphylaxis Research
- Developmental Biology and Gene Regulation
- Urban Heat Island Mitigation
- Quasicrystal Structures and Properties
- Health Education and Validation
Universidade do Porto
2016-2025
University of Lisbon
2024
Centro Hospitalar do Porto
2022
University of Aveiro
2022
ISPA - Instituto Universitário
2021
Northwestern University
1997
Neurons are specialized cells for information transmission and processing. In fact, many neurologic disorders directly linked not to cellular viability/homeostasis issues but rather specific anomalies in electrical activity dynamics. Consequently, therapeutic strategies based on the direct modulation of neuronal have been producing remarkable results, with successful examples ranging from cochlear implants deep brain stimulation. Developments these implantable devices hindered, however, by...
We investigate the interplay of magnetization and lattice vibrations in rare-earth orthoferrites RFeO3, with a specific focus on non-symmetry-breaking anomalies. To do so, we study magnetization, magnon excitations dynamics as function temperature NdFeO3, TbFeO3, EuFeO3 GdFeO3. The shows distinct anomalous behavior for all investigated orthoferrites, even compounds no phase transitions occurring at those temperatures. Through spin-phonon coupling, these magnetic changes are mirrored by FeO6...
Carbon materials derived from marine waste have been drawing attention for supercapacitor applications. In this work, chitins squid and prawn wastes were used as carbon precursors further application electrodes energy storage devices. Chitins obtained through a deproteinization method based on enzymatic hydrolysis an alternative to chemical commonly presented in the literature. The porous carbons characterized using BET surface area analyzer determine specific pore size, well scanning...
Under which condition is quantization optimal? We address this question in the context of additive uniform noise channel under peak amplitude and power constraints. compute analytically capacity-achieving input distribution as a function level, average constraint exponent constraint. found that when cost tight concave, discrete, whereas convex, support spans entire interval.
A educação especial integrada ao ensino colaborativo se destaca como uma abordagem essencial para promover a inclusão e equidade nas escolas contemporâneas. Considerando crescente diversidade salas de aula, adoção modelos coensino torna necessária atender às variadas necessidades dos estudantes, especialmente aqueles com deficiência. O coensino, caracterizado pela parceria entre educadores em diferentes contextos, é analisado estratégia eficaz criar um ambiente aprendizagem mais inclusivo....
The resistive switching (RS) mechanism in Ni-doped graphene oxide (GO) devices is studied. We found that RS depends strongly on the fabrication method of GO sheet and electrode material. Resistive GO-devices can be caused by diffusion ions from metallic or migration oxygen groups, depending process. also show GO-based structures possess activity-dependent modification capabilities, emphasized increase/decrease device conductance after consecutive voltage sweeps opposite polarity. Our results...
The growing concern on energy savings in buildings, particularly related with cooling needs, has led to the search of new constructive solutions. Frequently, darker colour coatings are used buildings for aesthetics purposes. However, such have low reflectance, absorbing a large portion solar radiation. associated heat gains enhance building demand and may reduce service life renderings owing increased thermal stresses comparison light coatings. aim this study was assess influence size...
As new materials are required to overcome the challenges presented by non-volatile resistive switching (RS) devices, organic based composites gaining attention due their easy preparation, tunability, scalability and good mechanical properties. Here, we study how interaction between MXene Polyvinylidene fluoride (PVDF) contribute RS phenomenon, different electrode [Ag (top) W, ITO (bottom)] affect conduction in these devices. Our detailed structural electrical analyses of composite layer...
This paper presents the results of Computational Fluid Dynamics (CFD) oriented geometrical optimization using GeN-Foam solver applied to subchannels fuel assembly in a PWR-type nuclear reactor. is coarse mesh OpenFOAM designed study engineering problems involving coupled solution thermohydraulics, neutronics and thermomechanics. However, could be used for complex geometry simulations, enabling multi-scale simulations. To use under these conditions, code simulation had evaluated. assessment...
Abstract The ongoing search to decode the brain communication system has propelled major advancements in bioelectronics research. From these, planar microelectrode arrays (MEAs) offer possibility record neuronal signals for extremely long periods of time and probe fundamental principles learning adaptation. Unfortunately, MEAs have low coupling are thus insensitive sub‐threshold such as post‐synaptic responses. To surpass this limitation, a novel category based on 3D high aspect ratio...
In the present study, we report a facile synthesis of novel Pd–Ni<italic>x</italic>B–SiO<sub>2</sub>/RGO (Pd@NSG) nanocomposite and discuss its enhanced H<sub>2</sub>spillover mechanism high catalytic performance towards reduction 4-nitrophenol (4-NP) to 4-aminopehol (4-AP).
The variability of resistive switching parameters can be minimized by choosing the proper voltage-polarity mode.
We report fabrication of reduced graphene oxide (rGO) films using chemical reduction by hydrazine hydrate and rGO paper-like samples low temperature treatment reduction. Structural analysis confirms the formation structure for both samples. Current-voltage (I–V) measurements film reveal semiconductor behavior with maximum current value ∼3 × 10−4A. The paper sample is found to be, at least, one order magnitude higher. Moreover, bipolar resistance switching, corresponding memristive type II,...
Soybean is a legume with high technological functionality, commonly used by the food industry as an ingredient in different products. However, soybean allergenic whose undeclared presence processed foods may represent public health risk. In this work, it was developed efficient electrochemical immunosensor, targeting trypsin inhibitor (Gly m TI) allergen using commercial anti-Gly TI IgG, aiming at detecting/quantifying minute amounts of formulations. For purpose, model mixtures (sausages,...
The recent realization of memristors, nanodevices remarkably similar to biological synapses, opened the possibility fabricate highly scalable artificial neural networks. While physical implementation such networks is still emerging, it useful perform simulations determine impact non-ideal devices or device faults in performance memory Here, we numerically evaluate a memristor-based Willshaw associative network, studying its capacity and robustness noise as function defects probability...