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

  • Identification data

    Identifier: imarina:5132282
    Authors:
    Hoekstra RBlondeau PAndrade F
    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.
  • Others:

    Author, as appears in the article.: Hoekstra R; Blondeau P; Andrade F
    Department: Química Analítica i Química Orgànica
    URV's Author/s: Andrade, Francisco Javier / Blondeau, Pascal Jean Claude Leon
    Keywords: Wearable sensor Solid contact potentiometry Ion-exchange membrane Conductivity
    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.
    Thematic Areas: Saúde coletiva Química Psicología Medicina ii Medicina i Materiais Interdisciplinar Geociências Farmacia Engenharias iii Engenharias ii Electrochemistry Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Chemistry, analytical Biotecnología Biodiversidade Astronomia / física Analytical chemistry
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: pascal.blondeau@urv.cat franciscojavier.andrade@urv.cat
    Author identifier: 0000-0003-1331-5055 0000-0003-1199-2837
    Record's date: 2024-09-07
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: https://onlinelibrary.wiley.com/doi/abs/10.1002/elan.201800128
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Electroanalysis. 30 (7): 1536-1544
    APA: Hoekstra R; Blondeau P; Andrade F (2018). IonSens: A Wearable Potentiometric Sensor Patch for Monitoring Total Ion Content in Sweat. Electroanalysis, 30(7), 1536-1544. DOI: 10.1002/elan.201800128
    Article's DOI: 10.1002/elan.201800128
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2018
    Publication Type: Journal Publications
  • Keywords:

    Analytical Chemistry,Chemistry, Analytical,Electrochemistry
    Wearable sensor
    Solid contact potentiometry
    Ion-exchange membrane
    Conductivity
    Saúde coletiva
    Química
    Psicología
    Medicina ii
    Medicina i
    Materiais
    Interdisciplinar
    Geociências
    Farmacia
    Engenharias iii
    Engenharias ii
    Electrochemistry
    Ciências biológicas ii
    Ciências biológicas i
    Ciências ambientais
    Ciências agrárias i
    Chemistry, analytical
    Biotecnología
    Biodiversidade
    Astronomia / física
    Analytical chemistry
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