‘Drawn-on-skin’ electronics offer breakthrough in wearable monitors

EurekAlert  July 30, 2020
The existing wearable bioelectronics are susceptible to motion artifacts as they lack proper adhesion and conformal interfacing with the skin during motion. A team of researchers in the US (University of Houston, University of Chicago) has developed ultra-conformal Drawn-on-Skin (DoS) electronics as a new bioelectronic platform for on-demand multifunctional, motion artifact-free sensing. The devices are based on the Ag flakes/poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (Ag-PEDOT:PSS) composite, poly(3-hexylthiophene-2,5-diyl) nanofibrils (P3HT-NF), and ion gel as the conductive, semiconducting, and dielectric inks, respectively. As a versatile platform, DoS electronics devices such as thin-film transistors, strain sensors, and electrophysiological sensors have been developed. It is stable in the presence of sweat, reliable capturing signals over a long duration, strong adherence to the skin, and immune to motion artifacts during sensing…read more. Open Access TECHNICAL ARTICLE

DoS electronics platform featuring conductive and semiconducting inks. Credit: Nature Communications volume 11, Article number: 3823 (2020) 

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