Electronic Tattoo

An ultra-thin electronic device that attaches to the skin like a stick on tattoo can measure electrical activity of the human body like heart, brain waves and other vital signs without the bulky electrodes used in current monitoring.

process

These tattoos are similar to those in children's fake tattoos. It usually starts out on a sheet of plastic, is then applied to the skin and rubbed on from outside the plastic, then the plastic is peeled away, leaving only a very thin, rubber patch that has a layer of flexible silicon wires. It is ultra-thin slices of plastic or rubber that encases tiny silicon wires, sensors, radios, cameras and even electricity generating cells. These tattoos stick to your skin like a Band-Aid and are typically temporary, lasting three to five days.

Applications

There are many applications in health care, wellness, and fitness. These tattoos can gather electrophysiological information which connects electrical activity to physiological functions such as brain activity, heart rate, respiration, and so on. The sensor, when mounted on the throat for example, can utilize data collected in conjunction with pattern recognition software that can work as an interface to technology and assist those with larynx disorders. Premature babies often need to be monitored for appropriate breathing and heart rate. A wireless tattoo would make it that much easier to ensure the baby’s safety rather than hardwiring the infant. These tattoos may also aid with physical rehabilitation not just as monitors, but also as a device to stimulate muscle contractions without restraining motion.

A company called Electrozyme makes electronic tattoos that appear to target athletic performance. They can measure lactate levels, which show how much muscle fatigue is happening. The patch can detect pH values on the skin, which shows hydration levels and other metrics of clear value to athletes.

There is a specific patent for an electronic tattoo that functions as a lie detector. There's also a throat tattoo that conveys sounds from the throat to a smartphone or other connected device. The idea might be useful as a microphone for talking in a noisy environment.

These tattoo technology also used for authentication purposes, as an alternative to traditional passwords. The mobile devices could then be used to confirm the owner’s identity and log them in to accounts automatically. This would prevent thieves and other people from being able to access a phone, or individual apps on the device, if it is stolen or lost. The circuits in tattoo, which also contain antennae and built-in sensors, could be adapted to work with mobile phones and tablets.