Researchers at Japan’s Waseda University have developed a method for creating electronic “tattoos,” or more accurately very thin stickers, that can attach to and monitor one’s body. Unlike other conductive body art designs, these devices can be made with a simple household inkjet printer.
Ink applied to the thin — only 750 namometers thick — film conducts electricity, powering an LED that could be used to track vital signs, or even how much you’ve had to drink.
Although not as permanent as a traditional tattoo, the film sticks to one’s skin without the need for glue or other adherents, and has been tested to work for several days.
This isn’t the only team working to make high-tech temporary tattoos a thing either. Back in 2015, Austin agency Chaotic Moon (now Fjord) created sensor-embedded adhesives of their own using Bare Conductive’s Electric Paint, LEDs, and an ATtiny85 MCU.
So far the aptly named “Tech Tats” can read body temperature, as well as tell if someone is stressed based on sweat, heart and hydration levels. In the future, they can potentially be used to store data, like credit card and bank details, and wirelessly transfer information via a small BLE chip. The possibilities are endless, all while being less noticeable than a Band-Aid.
[h/t Daily Mail]