A super thin electronic patch that sticks to the skin like a temporary tattoo could transform human/machine integration.
Materials scientist John Rogers of the University of Illinois, Urbana-Champaign and his colleagues have invented a form of electronics that almost precisely matches skin's mechanical properties. Known as epidermal electronics (EES), they can be applied in a similar way to a temporary tattoo, i.e. a user simply places it on the skin and rubs it on with water. The devices can even be hidden under actual temporary tattoos to keep the electronics concealed.
Professor Rogers has said that EES eliminates the "distinction between electronics and biology" because it "integrates with the skin in a way that is mechanically and physiologically invisible to the user."
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