Autor según el artículo: Blondeau, P.; Hoekstra, R.; Andrade, F. J.

Departamento: Química Analítica i Química Orgànica

Autor/es de la URV: BLONDEAU , PASCAL JEAN CLAUDE LEON; Hoekstra, R.; ANDRADE , FRANCISCO JAVIER

Resumen: A sensor for monitoring total ion activity is described, and its performance as a wearable device for monitoring the total ion levels of sweat is evaluated. The sensor works by tracking changes in the Donnan potential generated across a Nafion® membrane. This cation-exchange polymer was cast on a paper coated with carbon-ink, making the platform elegantly simple. Analytical parameters during calibration in aqueous solution include a sensitivity of 56.3±1.0 mV/dec.a(Na+) and a standard deviation between standard electrode potentials of 5.3 mV (N=5) for first time use. By integrating a paper based pseudo reference electrode, a miniature disposable electrochemical cell (the “IonSens” device) was created and demonstrated as a wearable sensor. Potentiometric measurements estimating the total ion activities were validated against conductivity measurements. Recoveries of eleven raw sweat samples were determined to be 95.2±6.6% (n=3). The perspiration conductivity profile of an athlete during exercise was monitored in real-time and visualized on a mobile phone application connected via Bluetooth®. The excellent reproducibility of the electrode without any conditioning is noteworthy and lends itself to applications including – but not limited to – the monitoring of total ion activity in sweat.

Grupo de investigación: Grup de Quimiometria, Qualimetria i Nanosensors

Áreas temáticas: Química Química Chemistry

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 1040-0397

Identificador del autor: 0000-0003-1331-5055; 0000-0003-3778-2395; 0000-0003-1199-2837

Fecha de alta del registro: 2018-07-27

Página final: 1544

Volumen de revista: 30

Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion

Enlace a la fuente original: https://onlinelibrary.wiley.com/doi/abs/10.1002/elan.201800128

Programa de financiación: plan; Retos; CTQ2016-77128-R plan; Retos; CTQ2013-46404-R altres; Contratos predoctorales para la formación de doctores; FPI; BES-2014-067661

DOI del artículo: 10.1002/elan.201800128

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2018

Página inicial: 1536

Tipo de publicación: Article Artículo Article