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Noninvasive Sweat-Lactate Biosensor Emplsoying a Hydrogel-Based Touch Pad.


ABSTRACT: This study is the first report demonstrating proof-of-concept for a hydrogel-based touch sensor pad used for the non-invasive extraction and detection of sweat components. The sensor device was composed of an electrochemical L-lactate biosensor covered with an agarose gel in a phosphate buffer saline. When human skin contacts the agarose gel, L-lactate in sweat was continuously extracted into the gel, followed by in-situ potentiometric detection without controlled conditions. This novel type of sweat sensor is expected to enable the simple, non-invasive daily periodic monitoring of sweat biomarkers for advanced personal healthcare methods in the future.

SUBMITTER: Nagamine K 

PROVIDER: S-EPMC6626002 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Noninvasive Sweat-Lactate Biosensor Emplsoying a Hydrogel-Based Touch Pad.

Nagamine Kuniaki K   Mano Taisei T   Nomura Ayako A   Ichimura Yusuke Y   Izawa Ryota R   Furusawa Hiroyuki H   Matsui Hiroyuki H   Kumaki Daisuke D   Tokito Shizuo S  

Scientific reports 20190712 1


This study is the first report demonstrating proof-of-concept for a hydrogel-based touch sensor pad used for the non-invasive extraction and detection of sweat components. The sensor device was composed of an electrochemical L-lactate biosensor covered with an agarose gel in a phosphate buffer saline. When human skin contacts the agarose gel, L-lactate in sweat was continuously extracted into the gel, followed by in-situ potentiometric detection without controlled conditions. This novel type of  ...[more]

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