Communications of the ACM
Sweating Big Human-Body Data Challenge
A team at the University of California, Berkeley has developed a wearable sweat biosensor to help researchers investigate sweat biomarkers.
Credit: 2016 International Electron Devices Meeting
University of California, Berkeley professor Ali Javey heads a project involving wearable electronics to help address an inability to "monitor health conditions of an individual at the molecular level."
Javey says his team's "wearable sweat bionsensor" is designed to help researchers investigate "on-body monitoring of a wide spectrum of sweat biomarkers."
Javey notes wearable biosensors have been employed to "measure the detailed sweat profiles of a wide spectrum of analytes, including metabolites, electrolytes, and heavy metals during various indoor and outdoor physical activities."
The technology offers what he calls "real-time on body sweat analysis." His team has developed a fully integrated multiplexed sweat-sensing system by combining plastic-based sensors that interface with the skin and silicon integrated circuits consolidated on a flexible circuit board for sophisticated signal processing. The sweat-sensor array consists of two metabolite sensors, two electrolyte sensors, and a sensor to measure skin temperature.
Javey says the data is wirelessly routed to a cellphone display in a custom-developed application. In addition, signal processing is required to perform real-time calibration and signal compensation.
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