“What we’ve found is that you don’t even need the elastomer backing,” Rogers says. “You can use a rubber stamp to just deliver the ultrathin mesh electronics directly to the surface of the skin.”
This is still very much experimental, but devices can last on the skin for up to two weeks, and measure things like temperature, strain, the hydration state of skin, monitor wound healing. The sensors can communicate wirelessly with remote data gatherers. This is a way off from being commercially available, but it’s a lovely example of science fiction leading the way.