Author, as appears in the article.: Blondeau, P.; Hoekstra, R.; Andrade, F. J.
Department: Química Analítica i Química Orgànica
URV's Author/s: BLONDEAU , PASCAL JEAN CLAUDE LEON; Hoekstra, R.; ANDRADE , FRANCISCO JAVIER
Abstract: 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.
Research group: Grup de Quimiometria, Qualimetria i Nanosensors
Thematic Areas: Química Química Chemistry
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 1040-0397
Author identifier: 0000-0003-1331-5055; 0000-0003-3778-2395; 0000-0003-1199-2837
Record's date: 2018-07-27
Last page: 1544
Journal volume: 30
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://onlinelibrary.wiley.com/doi/abs/10.1002/elan.201800128
Funding program: plan; Retos; CTQ2016-77128-R plan; Retos; CTQ2013-46404-R altres; Contratos predoctorales para la formación de doctores; FPI; BES-2014-067661
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Article's DOI: 10.1002/elan.201800128
Entity: Universitat Rovira i Virgili
Journal publication year: 2018
First page: 1536
Publication Type: Article Artículo Article