A Wearable and Multiplexed Electrochemical Sensor Suite for Real-Time Sweat Ionic Content and pH Monitoring with IoT Integration

Noninvasive sweat sensor integrated with electronic devices has great potential to monitor health condition and diagnose several diseases in their early stages. In this report, we present multiplexed flexible skin patches consisting of electrochemical sensors for monitoring potassium (K + ), calcium...

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Bibliographic Details
Published in:IEEE sensors letters 2023-09, Vol.7 (9), p.1-4
Main Authors: Hossain, Nafize Ishtiaque, Sharma, Atul, Sonkusale, Sameer
Format: Article
Language:English
Subjects:
Biosensors
Calcium
Calcium ions
calcium sensor
Chemical sensors
Electrodes
flexible electronics
Internet of Things
Ion Selective Electrode
Ions
IoT
Monitoring
multiplexed sensor
Multiplexing
pH sensor
Potassium
potassium sensor
Real-time systems
Sensors
Sweat
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Summary:Noninvasive sweat sensor integrated with electronic devices has great potential to monitor health condition and diagnose several diseases in their early stages. In this report, we present multiplexed flexible skin patches consisting of electrochemical sensors for monitoring potassium (K + ), calcium (Ca 2+ ), and pH levels in sweat with Internet of Things (IoT) connectivity. The sensor suite demonstrates dynamic and repeatable characteristics with a high degree of sensitivity (S K + =64.17mV/dec., SCa 2+ =38.33mV/dec., and S pH =-46.33mV/dec.), and selectivity for the detection of desired ions. The sensor suite was tested for on-body during running exercise for over 60 minutes; results show an increasing trend in K + , and pH levels and decreasing trend of Ca 2+ levels in real sweat as expected. The developed device can be a pivotal tool for point-of-care (POCT) applications for in-field sweat ionic content and pH analysis.
ISSN:2475-1472
2475-1472
DOI:10.1109/LSENS.2023.3300827