14 documents found, page 1 of 2
Lignin-based nanoparticles loaded with essential oils: potential for diabetic f...
Domingues, Joana Margarida Dias; Noro, Jennifer Martins; Novoa-Carballal, Ramón; Ribeiro, Artur; Monteiro, R.; Silva, C.; Felgueiras, Helena PradoEssential oils (EOs) play a pivotal role in wound healing as sustainable bioactive agents capable of counteracting infections and enhancing wound healing. Nevertheless, their application remains limited by challenges such as high volatility, photothermal resistance, and a tendency toward oxidative degradation. Encapsulation of EOs offers a promising strategy to overcome these issues by enhancing their chemical ...
Sustainable dyeing and functionalization of knitted cotton fabrics with algae e...
Oliveira, Helena S.; Santos, Joana; Ferreira, Tânia; Ribeiro, Artur; Silva, C.; Antunes, Joana C.; Bessa, João; Oliveira, Luís Miguel; Fangueiro, RaúlAlgae extracts have emerged as a sustainable and eco-friendly alternative to synthetic dyes and functional additives in the textile industry, particularly for dyeing and functionalizing of cotton fabrics. Herein, two types of water-soluble algae extracts from Arthrospira platensis and Porphyridium cruentum were characterized in terms of thermal, structural, and functional properties and used as dye and/or funct...
Textile-based electrochemical sensor to detect ethanol using platinum nanoparti...
Costa, Nuna G.; Vanoni, Caio R.; Barros, Aline; Silva, C.; Gonzalez, Arturo; Antunes, Joana C.; Rocha, A. M.The development of textile-based electrochemical sensors for monitoring biomarkers in biological fluids, particularly alcohol, is a key area of research for real-time health monitoring. Alcohol, a widely consumed psychoactive substance, is a leading cause of fatal road accidents. This study explores the characterization and functionalization of a novel textile-based screen-printed electrode (SPE) for ethanol de...
Innovative textile-based electrochemical sensor for ethanol detection in sweat:...
Costa, Nuno G.; Vanoni, Caio R.; Silva, C.; Gonzalez, Arturo; Antunes, Joana C.; Rocha, Ana M.The development of textile-based biosensors capable of quantifying biometric data in biological fluids is a major topic of research. The ultimate goal is to provide information about an individuals medical state anytime and anywhere. Alcohol is considered the most commonly used addictive substance worldwide, being one of the main causes of death in road accidents. This work demonstrates a method to produce a no...
Layer-by-layer electrospun PCL/PVA mats loaded with nisin Z for enhanced diabet...
Tavares, Tânia; Pinho, Sonia L. C.; Delgado-Pujol, Ernesto J.; Begines, Belén; Alcudia, Ana; Silva, C.; Antunes, Joana C.; Felgueiras, Helena PradoDiabetic foot ulcers (DFUs) represent a significant clinical challenge due to impaired healing and high susceptibility to infections, underscoring the urgent need for multifunctional wound dressings. This study explores the potential of multilayered electrospun mats composed of polycaprolactone (PCL) and poly(vinyl alcohol) (PVA) engineered by a layer-by-layer (LbL) electrospun-based deposition, and functionali...
Durable and breathable ZnO/graphene-coated fabrics for enhanced BQR protection
Ferreira, Tânia; Vale, A. Catarina; Gonçalves, Afonso; Pinto, Alexandra C.; Sousa, Diana; Guimarães, Humberto; Moreira, Inês P.; Silva, CarlosThis work developed a new strategy to create active protection against chemical, biological, radiological and nuclear (CBRN) threats, based on polyurethane-based coatings for outer (water and oil-repellency) and inner (CBRN protection) functionalization of fabric. The internal coatings were functionalized with varying concentrations of zinc oxide nanoparticles (ZnO) and/or graphene nanoplatelets (Gf) and carefu...
Development and optimization of a SPME-GC-FID method for ethanol detection
Costa, Nuna G.; Freitas, David Silva; Barros, Aline Magalhães; Silva, Carla; Antunes, Joana C.; Rocha, Ana M.A solid-phase microextraction (SPME) injection gas chromatography was validated with the flame ionization detection method (GC-FID) using a capillary column to detect ethanol. The method was used to determine ethanol in fluids with biomedical, clinical, and forensic importance, including water, phosphate-buffered saline (PBS), and artificial sweat. The strategy produced good peak resolution and showed a linear ...
Comparison of zinc oxide nanoparticle integration into non-woven fabrics using ...
Ferreira, Tânia; Vale, Ana Catarina; Pinto, Alexandra C.; Costa, Rita V.; Pais, Vânia; Sousa, Diana; Gomes, Fernanda Isabel Antunes; Pinto, GraçaThe development of advanced facemasks stands out as a paramount priority in enhancing healthcare preparedness. In this work, different polypropylene non-woven fabrics (NWF) were characterised regarding their structural, physicochemical and comfort-related properties. The selected NWF for the intermediate layer was functionalised with zinc oxide nanoparticles (ZnO NPs) 0.3 and 1.2wt% using three different method...
A review on flexible electrochemical biosensors to monitor alcohol in sweat
Costa, Nuna G.; Antunes, Joana C.; Paleo, Antonio J.; Rocha, A. M.The continued focus on improving the quality of human life has encouraged the development of increasingly efficient, durable, and cost-effective products in healthcare. Over the last decade, there has been substantial development in the field of technical and interactive textiles that combine expertise in electronics, biology, chemistry, and physics. Most recently, the creation of textile biosensors capable of ...
Multifunctional coated textiles for active biological protection
Antunes, Joana C.; Ferreira, Tânia; Arruda, Luisa M.; Sousa-Silva, M.; Gomes, Fernanda Isabel; Cunha, Fernando; Moreira, Inês P.; Henriques, MarianaThe rising threats to the worldwide security (military and civilian) attest the need to develop efficient and versatile technological solutions to protect the human being [...]