Abstract
Electronics designed to stick to skin and transmit the body’s electric signals could improve the sensitivity of prosthetics or help doctors monitor patients’ vital signs. Unfortunately, conventional electrodes used for this purpose trap air and sweat against skin, causing irritation or inflammation when used for an extended period. Now, a team of researchers from the University of Tokyo, the Japan Science & Technology Agency, and Riken have developed a conductive gold nanomesh that is flexible and breathable while relaying electric signals (Nat. Nanotechnol. 2017, DOI: 10.1038/nnano.2017.125). To make the material, researchers led by Takao Someya at the University of Tokyo electrospun nanofibers of biocompatible polyvinyl alcohol (PVA) and interwove them to form a mesh. They then coated the top of the nanomesh with a layer of gold 70- to 100-nm thick. After applying this mesh to a person’s skin, researchers sprayed it with water to dissolve the PVA and form
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