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IonSens: A Wearable Potentiometric Sensor Patch for Monitoring Total Ion Content in Sweat

  • Datos identificativos

    Identificador: PC:3321
    Autores:
    Blondeau, P.Hoekstra, R.Andrade, F. J.
    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.
  • Otros:

    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
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    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
  • Palabras clave:

    Bescanvi iònic
    Sensors electroquímics
    Química
    Química
    Chemistry
    1040-0397
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