11 documents found, page 1 of 2
NADES-based cork extractives as green ingredients for cosmetics and textiles
Rocha, Diana; Freitas, David; Magalhães, Jéssica; Marques, S. M.; Silva, Sónia Carina; Noro, Jennifer Martins; Ribeiro, Artur; Cavaco-Paulo, ArturThe demand for products based on natural ingredients is increasing among cosmetic and textile consumers. Cork extracts contain components of interest with special properties, including antioxidant, anti-inflammatory, and antibacterial activities, that might improve the effectiveness of cosmetic formulations currently on the market and may impart new characteristics to textiles. The main goal of this work was to...
Antimicrobial TiN-Ag coatings in leather insole for diabetic foot
Marques, S. M.; Carvalho, Isabel; Leite, Teófilo R.; Henriques, Mariana; Carvalho, SandraThis work reports on TiN-Ag antimicrobial coatings deposited by d.c. magnetron sputtering on leather used for insoles on the footwear industry, studies involving the antimicrobial properties of Ag-based functionalized leathers by sputtering techniques are shown. The X-ray diffraction (XRD) results suggested the presence of crystalline fcc-TiN phase for the sample without silver, and also a fcc-Ag phase in the s...
Surface functionalization of 3D printed structures: Aesthetic and antibiofoulin...
Castro, José D.; Carneiro, E.; Marques, S. M.; Figueiredo, Bruno; Pontes, A. J.; Sampaio, Álvaro M.; Carvalho, Isabel; Henriques, MarianaAdditive manufacturing (AM) is a hot topic nowadays, having a first order in importance in research trends, improving existent technologies and carrying them further. AM can be applied to ceramics, which have importance in current technologies. Their capability to maintain functional properties for long time periods, combined with the easiness to process and the abundance of raw materials, make them a fundament...
Strain analysis on Ti1-xAgx and Ag-TiNx electrodes deposited on polymer based s...
Marques, S. M.; Costa, P.; Lanceros-Méndez, S.; Carvalho, S.Electroactive polymers are among the most interesting class of polymers for sensors and actuators applications in the biomedical field, including as the area of smart prosthesis. Appropriate suitable electrodes can be produced from Ti based coatings with added tailored multifunctional properties as biocompatible properties, to acquire and/or apply the electrical signal from/to the piezoelectric material. Furthe...
Ag-TiN<inf>x</inf> electrodes deposited on piezoelectric poly(vinylidene fluori...
Marques, S. M.; Manninen, N. K.; Lanceros-Méndez, S.; Carvalho, S.Electroactive polymers are one of the most interesting class of polymers used as smart materials in various applications, such as the development of sensors and actuators for biomedical applications in areas such as smart prosthesis, implantable biosensors and biomechanical signal monitoring, among others. For acquiring or applying the electrical signal from/to the piezoelectric material, suitable electrodes ca...
PVD-grown antimicrobial thin films on PVDF substrates for sensors applications
Marques, S. M.; Carvalho, Isabel; Lanceros-Méndez, S.; Henriques, Mariana; Polcar, T.; Carvalho, S.Electroactive polymers are the most interesting class of polymers used as smart materials in various applications, such as the development of sensors and actuators for biomedical applications in areas as smart prosthesis, implantable biosensors and biomechanical signal monitoring, among others. For acquiring or applying the electrical signal from/to the piezoelectric material, suitable electrodes can be produce...
PVD-grown antibacterial Ag-TiN films on piezoelectric PVDF substrates for senso...
Marques, S. M.; Carvalho, I.; Henriques, Mariana; Polcar, T.; Carvalho, S.This work reports on Ti1-xAgx and Ag-TiNx electrodes deposited by dc/pulsed dc magnetron sputtering at room temperature on poly (vinylidene fluoride) (PVDF) with the purpose to develop sensors for prosthesis. In Ti1-xAgx electrodes, silver content was varied from 0 to 100 at.%; and for Ag-TiNx electrodes, the nitrogen content was varied between 34 to 43 at.% and the Ti/Ag ratio changed from 12.2 to 5.2. The ant...
Development of Ag/TiO2NM-treated leathers with antibacterial activity for footw...
Carvalho, I.; Marques, S. M.; Henriques, Mariana; Polcar, T.; Tavares, C. J.; Carvalho, S.This work aims to contribute to the industrial development of safer and advanced leathers using nanomaterials (NMs) that are based in titanium oxide doped with silver (Ag-TiO2NMs). These NMs present an ecological alternative to volatile organic biocides and organic solvents, frequently used nowadays. Safe application of these NMs brings added value to footwear and leather products and reduces the bulk chemical ...
Ti1−xAgx electrodes deposited on polymer based sensors
Marques, S. M.; Manninen, N. K.; Ferdov, Stanislav; Lanceros-Mendez, S.; Carvalho, S.Piezoelectric materials are interesting for the development of sensors and actuators for biomedical applications in areas such as smart prosthesis, implantable biosensors and biomechanical signal monitoring, among others. For acquiring or applying the electrical signal from/to the piezoelectric material, suitable electrodes can be produced from Ti based coatings with tailored multifunctional properties: conduct...
Ti1−xAgx electrodes deposited on polymer based sensors
Marques, S. M.; Manninen, Nora Kristiina Alves Sousa; Ferdov, S.; Lanceros-Méndez, S.; Carvalho, S.Piezoelectric materials are interesting for the development of sensors and actuators for biomedical applications in areas such as smart prosthesis, implantable biosensors and biomechanical signal monitoring, among others. For acquiring or applying the electrical signal from/to the piezoelectric material, suitable electrodes can be produced from Ti based coatings with tailored multifunctional properties: conduct...