RT Journal Article
SR Electronic
T1 Waterproof, electronics-enabled, epidermal microfluidic devices for sweat collection, biomarker analysis, and thermography in aquatic settings
JF Science Advances
JO Sci Adv
FD American Association for the Advancement of Science
SP eaau6356
DO 10.1126/sciadv.aau6356
VO 5
IS 1
A1 Reeder, Jonathan T.
A1 Choi, Jungil
A1 Xue, Yeguang
A1 Gutruf, Philipp
A1 Hanson, Justin
A1 Liu, Mark
A1 Ray, Tyler
A1 Bandodkar, Amay J.
A1 Avila, Raudel
A1 Xia, Wei
A1 Krishnan, Siddharth
A1 Xu, Shuai
A1 Barnes, Kelly
A1 Pahnke, Matthew
A1 Ghaffari, Roozbeh
A1 Huang, Yonggang
A1 Rogers, John A.
YR 2019
UL http://advances.sciencemag.org/content/5/1/eaau6356.abstract
AB Noninvasive, in situ biochemical monitoring of physiological status, via the use of sweat, could enable new forms of health care diagnostics and personalized hydration strategies. Recent advances in sweat collection and sensing technologies offer powerful capabilities, but they are not effective for use in extreme situations such as aquatic or arid environments, because of unique challenges in eliminating interference/contamination from surrounding water, maintaining robust adhesion in the presence of viscous drag forces and/or vigorous motion, and preventing evaporation of collected sweat. This paper introduces materials and designs for waterproof, epidermal, microfluidic and electronic systems that adhere to the skin to enable capture, storage, and analysis of sweat, even while fully underwater. Field trials demonstrate the ability of these devices to collect quantitative in situ measurements of local sweat chloride concentration, local sweat loss (and sweat rate), and skin temperature during vigorous physical activity in controlled, indoor conditions and in open-ocean swimming.