A5071132663- Metal and Thin Film Mechanics
- Advanced Sensor and Energy Harvesting Materials
- Gold and Silver Nanoparticles Synthesis and Applications
- Semiconductor materials and devices
- Copper Interconnects and Reliability
- ZnO doping and properties
- Optical Coatings and Gratings
- Dental materials and restorations
- Plasmonic and Surface Plasmon Research
- Endodontics and Root Canal Treatments
- Muscle activation and electromyography studies
- MXene and MAX Phase Materials
- Conducting polymers and applications
- Advanced Thermoelectric Materials and Devices
- GaN-based semiconductor devices and materials
- High-Temperature Coating Behaviors
- Dielectric materials and actuators
- Adhesion, Friction, and Surface Interactions
- Advanced Antenna and Metasurface Technologies
- Metallic Glasses and Amorphous Alloys
- Advanced Nanomaterials in Catalysis
- Diamond and Carbon-based Materials Research
- Tendon Structure and Treatment
- Ferroelectric and Piezoelectric Materials
- Electrodeposition and Electroless Coatings
University of Minho
2015-2024
Universidade do Porto
2016-2022
Swedish Defence Research Agency
2018
Instituto Pedro Nunes
2015
Laboratório de Ensaios Desgaste e Materiais
2014-2015
This work presents a comprehensive review on gas sensors based localized surface plasmon resonance (LSPR) phenomenon, including the theory of LSPR, synthesis nanoparticle-embedded oxide thin films, and strategies to enhance sensitivity these optical sensors, supported by simulations electromagnetic properties. The LSPR phenomenon is known be responsible for unique colour effects observed in ancient Roman Lycurgus Cup at windows medieval cathedrals. In both cases, result from interaction...
Electrodes of silver/silver chloride (Ag/AgCl) are dominant in clinical settings for surface electromyography (sEMG) recordings. These electrodes need a conductive electrolyte gel to ensure proper performance, which dries during long-term measurements inhibiting the immediate electrode's reuse and is often linked skin irritation episodes. To overcome these drawbacks, new type dry based on architectured titanium (Ti) thin films were proposed this work. The microstructures zigzags, obtained...
Nanocarriers (NCs) have emerged as a revolutionary approach in targeted drug delivery, promising to enhance efficacy and reduce toxicity through precise targeting controlled release mechanisms. Despite their potential, the clinical adoption of NCs is hindered by challenges physicochemical characterization, essential for ensuring safety, efficacy, quality control. Traditional characterization methods, such dynamic light scattering nanoparticle tracking analysis, offer limited insights,...
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...
This research reports a novel concept of dry surface electrodes designed to act in dual-role biofeedback process: monitoring and stimulating the muscle's electrical activity. A new strategy based on 3-D printed polymeric disk-shaped substrates functionalized with nanostructured (Ti,Cu)N thin films be integrated into rehabilitation wearables. Five different chemical compositions microstructural features were grown by dc magnetron sputtering polyurethane (PU), polylactide, cellulose polymers...
This paper reports a suitable piezoresistive carbon nanotube (CNT)/PVDF composite capable of measuring the interface pressure within prosthetic stump/sockets. The transducers were prepared by hot pressing with CNTs sample concentrations up to 10 wt.%. sensibility (Gauge factor) composites was characterized using mechanical testing equipment and values reached 6.2. After optimization materials, tests conducted prototype placed in lower limb amputee patients, performing several standing...
High electrical conductivity, along with high piezoresistive sensitivity and stretchability, are crucial for designing developing nanocomposite strain sensors damage sensing on-line structural health monitoring of smart carbon fiber-reinforced polymer (CFRP) composites. In this study, the influence geometric features loadings carbon-based nanomaterials, including reduced graphene oxide (rGO) or nanofibers (CNFs), on tunable strain-sensing capabilities epoxy-based nanocomposites was...