Author(s): Zhong, BW (Zhong, Bowen); Jiang, K (Jiang, Kai); Wang, LL (Wang, Lili); Shen, GZ (Shen, Guozhen)

Source: ADVANCED SCIENCE Article Number: 2103257 DOI: 10.1002/advs.202103257 Early Access Date: OCT 2021

Abstract: Wearable sweat sensors have received significant research interest and have become popular as sweat contains considerable health information about physiological and psychological states. However, measured biomarker concentrations vary with sweat rates, which has a significant effect on the accuracy and reliability of sweat biosensors. Wearable sweat loss measuring devices (SLMDs) have recently been proposed to overcome the limitations of biomarker tracking and reduce inter- and intraindividual variability. In addition, they offer substantial potential for monitoring human body homeostasis, because sweat loss plays an indispensable role in thermoregulation and skin hydration. Previous studies have not carried out a comprehensive and systematic review of the principles, importance, and development of wearable SLMDs. This paper reviews wearable SLMDs with a new health perspective from the role of sweat loss to advanced mechanisms and designs. Two types of sweat and their measurement significance for practical applications are highlighted. Then, a comprehensive review of advances in different wearable SLMDs based on hygrometers, absorbent materials, and microfluidics is presented by describing their respective device architectures, present situations, and future directions. Finally, concluding remarks on opportunities for future application fields and challenges for future sweat sensing are presented.

Accession Number: WOS:000712090400001

PubMed ID: 34713981

Author Identifiers:

Author        Web of Science ResearcherID        ORCID Number

Zhong, Bowen                  0000-0001-9365-895X

eISSN: 2198-3844

Full Text: https://onlinelibrary.wiley.com/doi/10.1002/advs.202103257