A5058437503- Metal and Thin Film Mechanics
- Water Quality and Pollution Assessment
- Neuroscience and Neural Engineering
- Aquatic Ecosystems and Phytoplankton Dynamics
- EEG and Brain-Computer Interfaces
- Advanced Sensor and Energy Harvesting Materials
- Copper Interconnects and Reliability
- ZnO doping and properties
- Marine and coastal ecosystems
- Semiconductor materials and devices
- Gas Sensing Nanomaterials and Sensors
- Advanced Memory and Neural Computing
- Fish biology, ecology, and behavior
- Gold and Silver Nanoparticles Synthesis and Applications
- Optical Coatings and Gratings
- Transition Metal Oxide Nanomaterials
- Conducting polymers and applications
- Additive Manufacturing and 3D Printing Technologies
- Copper-based nanomaterials and applications
- MXene and MAX Phase Materials
- Geography and Environmental Studies
- Molecular Junctions and Nanostructures
- Neural dynamics and brain function
- Plasmonic and Surface Plasmon Research
- Soil Management and Crop Yield
University of Minho
2011-2023
State University of Norte Fluminense
1999-2019
Université Bourgogne Franche-Comté
2016-2019
Centre National de la Recherche Scientifique
2016-2019
Franche-Comté Électronique Mécanique Thermique et Optique - Sciences et Technologies
2016-2019
Universidade do Porto
2009-2018
University of Coimbra
2011-2018
Université de Bourgogne
2016
Northern State University
2009
Ministério Público
2007
In state-of-the-art electroencephalography (EEG) Silver/Silver-Chloride electrodes are applied together with electrolyte gels or pastes. Their application requires extensive preparation, trained medical staff and limits measurement time mobility. We recently proposed a novel multichannel cap system for dry EEG mobile out-of-the-lab acquisition. During the tests these polymer-based multipin electrodes, we observed that quality of recording depends on normal force resulting contact pressure....
In this work, a versatile method is proposed to increase the sensitivity of optical sensors based on localized surface plasmon resonance (LSPR) phenomenon. It combines physical deposition with oblique angle technique, allowing preparation plasmonic thin films tailored porosity. Thin Au-TiO2 were deposited by reactive magnetron sputtering in 3D nanostructure (zigzag growth), at different incidence angles (0° ≤ α 80°), followed in-air thermal annealing 400 °C induce growth Au nanoparticles....
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOn the glass transition behavior, interaction energies, and hydrogen-bonding strengths of binary poly(p-vinylphenol)/polyether blendsP. Pedrosa, J. A. Pomposo, E. Calahorra, M. CortazarCite this: Macromolecules 1994, 27, 1, 102–109Publication Date (Print):January 1994Publication History Published online1 May 2002Published inissue 1 January 1994https://pubs.acs.org/doi/10.1021/ma00079a016https://doi.org/10.1021/ma00079a016research-articleACS...
Several plasma treatments using argon, oxygen, and nitrogen are studied in order to increase the interfacial adhesion of polyurethane/Ag:TiN system be used as biopotential electrodes. The optimized conditions (100 W, 15 min, regardless gas) promote a steep decrease water contact angle values. observed chemical topographic alterations translate into excellent treated samples. in‐service validation proposed Ag:TiN‐coated PU multipin electrodes is performed by acquiring EEG signals parallel...
Inclined, zigzag and spiral TiAg films were prepared by glancing angle co-deposition, using two distinct Ti Ag targets with a particle incident of 80° contents ranging from 20 to 75 at%. The effect increasing incorporation columnar architecture change on the morphological, structural electrical properties was investigated. It is shown that inclined features (β = 47°) high porosity obtained for at% Ag, column sharply decreasing 21°) 50 steeply afterwards until β 37° film Ag. sputtered exhibit...
Abstract A novel quasi-dry electrode prototype, based on a polymer wick structure filled with specially designed hydrating solution is proposed for electroencephalography (EEG) applications. The new does not require the use of conventional electrolyte paste to achieve wet, low-impedance scalp contact. When compared standard commercial Ag/AgCl sensors, electrodes exhibit similar electrochemical noise and potential drift values. Lower impedances are observed when tested in human volunteers due...
To evaluate the effects of different concentrations noble metal in a TiO 2 matrix, films both Ag/TiO and Au/TiO systems were prepared. Mechanical tribological characterisation was carried out to coating response as function composition (micro)structure films. The overall set results indicates that amorphous reveal better than crystalline ones. For samples, reduced Young's modulus adhesion critical loads followed similar tendencies sets Wear rates for all samples except one with highest...