Temporary tattoos are the inspiration for a new, wearable electronic sensor. Hidden in what looks like a piece of tape are tiny sensors that can measure and transmit data about the heart, brain waves and muscle activity. The sensors are stuck to the skin with water, just like a temporary tattoo. Except the tattoo doesn't have a need for gel, tape, and bulky wires. The patches can bend, twist and stretch just like the skin, so the user doesn't even know it is there. Researchers hope this will make patients undergoing tests feel more comfortable, and allow them to be monitored in places other than a doctor's office or hospital. The researchers also put sensors in a temporary tattoo, so it was completely camouflaged. One of the lead authors of the study co-founded a company that will commercialize this technology.
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