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Sweat monitoring beneath garments using passive, wireless resonant sensors interfaced with laser-ablated microfluidics

Engineering and Technology

Sweat monitoring beneath garments using passive, wireless resonant sensors interfaced with laser-ablated microfluidics

A. R. Carr, Y. H. Patel, et al.

Discover a groundbreaking wireless sweat sensor sticker created by Adam R Carr, Yash H Patel, Charles R Neff, and colleagues! This innovative device measures sweat loss volume and conductivity seamlessly under clothing using advanced microfluidic technology. Perfect for real-time health monitoring, this research promises to transform our approach to hydration and fitness.

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Playback language: English
Abstract
This paper introduces a wireless, passive, conformable sweat sensor sticker for measuring sweat loss volume and conductivity under clothing. The sticker uses a laser-ablated microfluidic channel and a resonant sensor, wirelessly interrogated by a handheld vector network analyzer. Sweat conductivity and volume are determined from the peak transmission loss magnitude and frequency, respectively. A four-person study assessed sensor variance due to tissue heterogeneity and sensor-reader orientation.
Publisher
npj Digital Medicine
Published On
Apr 30, 2020
Authors
Adam R Carr, Yash H Patel, Charles R Neff, Sadaf Charkhabi, Nathaniel E Kallmyer, Hector F Angus, Nigel F Reuel
DOI
https://doi.org/10.1038/s41746-020-0270-2
Tags
sweat sensor
wireless technology
microfluidics
health monitoring
conductivity measurement
passive sensor

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