RT info:eu-repo/semantics/article T1 Determination of halides using Ag nanoparticles-modified disposable electrodes. A first approach to a wearable sensor for quantification of chloride ions A1 Bujes Garrido, Julia A1 Izquierdo Bote, Daniel A1 Heras Vidaurre, Aránzazu A1 Colina Santamaría, Álvaro A1 Arcos Martínez, Julia K1 Halide ions electrochemical determination K1 Wearable screen-printed sensors K1 UV/Vis absorptometric spectroelectrochemistry K1 Silver nanoparticles K1 Sweat analysis K1 Chemistry, Analytic K1 Química analítica AB This work reports a simple voltammetric method for the determination of chloride, bromide, and iodide ions using screen-printed carbon electrodes modified with silver nanoparticles electrochemically deposited on the working electrode surface. UV/Vis absorption spectroelectrochemistry was used to study the electrodeposition of silver nanoparticles on the working carbon electrode on PET or Gore-Tex® supports, and their subsequent oxidation in the presence of halide ions.The main figures of merit of the developed sensors, such as reproducibility and detection limit, have been calculated. Reproducibility values of 2.22%, 2.83% and 3.23% were obtained for chloride, bromide and iodide determinations, respectively. Additionally, the lowest detected amount of chloride, bromide and iodide ions were 3.0·10−6 M, 5.0·10−6 M and 5.0·10−6 M, respectively.Taking into account the relevance of the determination of chloride ion concentration in sweat, the voltammetric method for the determination of halides has been successfully transferred to a Gore-Tex® support to build a first approach to a wearable sensor that facilitates the quantification of this ion in sweat samples. The Gore-Tex® sensor provides a good reproducibility (RSD = 1.61%). PB Elsevier SN 0003-2670 YR 2018 FD 2018-07 LK http://hdl.handle.net/10259/4780 UL http://hdl.handle.net/10259/4780 LA eng NO Spanish Ministry of Science and Innovation (MICINN), Ministry of Economy and Competitiveness (MINECO) and the European Regional Development Fund (TEC20013-40561-P and MUSSEL RTC-2015-4077-2). DS Repositorio Institucional de la Universidad de Burgos RD 28-mar-2024