Shin, Jaeho Song, Joseph Wooden Flavin, Matthew Thomas Cho, Seunghee Li, Shupeng Tan, Ansen Pyun. Kyung Rok Huang, Aaron G Wang, Huifeng Jeong, Seongmin Madsen, Kenneth Earl Trueb, Jacob Kim, Mirae Nguyen, Katelynn Yang, Angela Hsu, Yaching Sung, Winnie Lee, Jiwon Phyo, Sooyeol Kim, Ji-Hoon Banks, Anthony Chang, Jan-Kai Paller, Amy S. Huang, Yonggang Ameer, Guillermo A. Rogers, John A. 2025-04-10T05:00:05Z 2025-04-10T05:00:05Z 2025-03-24 2025-04 0028-0836 https://pubs.kist.re.kr/handle/201004/152256 Existing wearable technologies rely on physical coupling to the body to establish optical1,2, fluidic3,4, thermal5,6 and/or mechanical7,8 measurement interfaces. Here we present a class of wearable device platforms that instead relies on physical decoupling to define an enclosed chamber immediately adjacent to the skin surface. Streams of vapourized molecular substances that pass out of or into the skin alter the properties of the microclimate defined in this chamber in ways that can be precisely quantified using an integrated collection of wireless sensors. A programmable, bistable valve dynamically controls access to the surrounding environment, thereby creating a transient response that can be quantitatively related to the inward and outward fluxes of the targeted species by analysing the time-dependent readings from the sensors. The systems reported here offer unique capabilities in measuring the flux of water vapour, volatile organic compounds and carbon dioxide from various locations on the body, each with distinct relevance to clinical care and/or exposure to hazardous vapours. Studies of healing processes associated with dermal wounds in models of healthy and diabetic mice and of responses in models using infected wounds reveal characteristic flux variations that provide important insights, particularly in scenarios in which the non-contact operation of the devices avoids potential damage to fragile tissues. English Nature Publishing Group A non-contact wearable device for monitoring epidermal molecular flux Article 10.1038/s41586-025-08825-2 1 Nature, v.640, no.8058, pp.375 - 383 Nature 640 8058 375 383 N scie scopus 001464374400010 Multidisciplinary Sciences Science & Technology - Other Topics Article SKIN BARRIER FUNCTION DIFFUSION-COEFFICIENTS CARBON-DIOXIDE VOLATILE ORGANIC-COMPOUNDS TRANSEPIDERMAL WATER-LOSS TURNOVER DISEASE SYSTEM HEALTH