A Self-Powered Wearable Sensor for Continuous Wireless Sweat Monitoring

Yansong Gai^{1

2}, Engui Wang², Minghao Liu², Lirong Xie³, Yuan Bai³, Yuan Yang², Jiangtao Xue^{2

4}, Xuecheng Qu², Yuan Xi², Linlin Li², Dan Luo², Zhou Li^{1

2

3

5}

Affiliations

¹ School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China.
² CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China.
³ Center on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning, 530004, China.
⁴ School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China.
⁵ Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, China.

PMID: 36074976
DOI: 10.1002/smtd.202200653

A Self-Powered Wearable Sensor for Continuous Wireless Sweat Monitoring

Yansong Gai et al. Small Methods. 2022 Oct.

. 2022 Oct;6(10):e2200653.

doi: 10.1002/smtd.202200653. Epub 2022 Sep 8.

Authors

Yansong Gai^{1

2}, Engui Wang², Minghao Liu², Lirong Xie³, Yuan Bai³, Yuan Yang², Jiangtao Xue^{2

4}, Xuecheng Qu², Yuan Xi², Linlin Li², Dan Luo², Zhou Li^{1

2

3

5}

Affiliations

¹ School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China.
² CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China.
³ Center on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning, 530004, China.
⁴ School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China.
⁵ Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, China.

PMID: 36074976
DOI: 10.1002/smtd.202200653

Abstract

Wireless wearable sweat analysis devices can monitor biomarkers at the molecular level continuously and in situ, which is highly desired for personalized health care. The miniaturization, integration, and wireless operation of sweat sensors improve the comfort and convenience while also bringing forward new challenges for power supply technology. Herein, a wireless self-powered wearable sweat analysis system (SWSAS) is designed that effectively converts the mechanical energy of human motion into electricity through hybrid nanogenerator modules (HNGMs). The HNGM shows stable output characteristics at low frequency with a current of 15 mA and a voltage of 60 V. Through real-time on-body sweat analysis powered by HNGM, the SWSAS is demonstrated to selectively monitor biomarkers (Na⁺ and K⁺ ) in sweat and wirelessly transmit the sensing data to the user interface via Bluetooth.

Keywords: personalized health care; self-powered systems; sweat sensors; wearable electronics; wireless communication.

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A Self-Powered Wearable Sensor for Continuous Wireless Sweat Monitoring

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