Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 332, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2021.129447
Keywords
Microfluidics; Sweat; Wearables; Sensors; Lab-on-chip
Funding
- Querrey Simpson Institute for Bioelectronics at Northwestern University
- National Institute on Aging of the National Institutes of Health [R43AG067835]
- National Institute of General Medical Sciences of the National Institutes of Health [P20GM113134]
- Hawai'i Community Foundation (Robert C. Perry Fund)
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Sweat is a biofluid with rich biochemical information that can reflect the metabolic activity of the human body. Wearable sweat sensors have the capability for real-time, continuous analysis and have broad applications in sports, health, military, and medical fields. Advances in biochemical sensor technologies are crucial for expanding the utility and commercialization of wearable sweat sensors.
Sweat is a promising, yet relatively unexplored biofluid containing biochemical information that offers broad insights into the underlying dynamic metabolic activity of the human body. The rich composition of electrolytes, metabolites, hormones, proteins, nucleic acids, micronutrients, and exogenous agents found in sweat dynamically vary in response to the state of health, stress, and diet. Emerging classes of skin-interfaced wearable sensors offer powerful capabilities for the real-time, continuous analysis of sweat produced by the eccrine glands in a manner suitable for use in athletics, consumer wellness, military, and healthcare industries. This perspective examines the rapid and continuous progress of wearable sweat sensors through the most advanced embodiments that address the fundamental challenges currently restricting widespread deployment. It concludes with a discussion of efforts to expand the overall utility of wearable sweat sensors and opportunities for commercialization, in which advances in biochemical sensor technologies will be critically important.
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