Tattoo-like skin health monitor works without batteries

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A team of international scientists has developed an ultra-thin health monitoring device. The device looks like a tattoo and needs to stick to the skin similar to patch. This tattoo-like skin health monitor is capable of controlling skin temperature, UV exposure, heart rate, changes in skin color and blood oxygen level.

Since from few years. Similar kind of wearable device become popular. This is because people are getting more conscious about their health. Other similar devices are worn as bracelets. Those works with battery, but time wise their lifespan decreases because of their battery performance.

To overcome this problem, researchers decided to develop a new monitoring device. So, they have developed this Tattoo-like skin health monitor device, which works without a battery.

The key to powering the new device was capturing the small amount of energy emitted by a smartphone or tablet. This makes use of near-field communications (NFC). NFC is a technology that employs electromagnetic induction between antennae inside of portable devices. Radio frequencies used to deliver information. This may use as an energy source by making the use of a battery unnecessary.

Key features of Tattoo-like skin health monitor device:

  • The device is less thick than an ordinary decal.
  • Flexible, sticks on the skin easily.
  • It collects information about the body and transmits it to the nearby device via a wireless medium.

The device contains a LED, a dye-based light sensor, and one other sensor equipped on the skin side. The LED shines inside and onside of skin. The reflecting light used to measure heart rate, changes in skin color and oxygenation levels. The dye-based light sensor measures ultraviolet light. Another sensor used to monitor skin temperature.

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It requires the phone or tablet providing NFC power be just a few inches away such as carried in a shirt pocket. This is one major drawback of the monitoring. Another option involves using a dedicated NFC device that offers more power. According to researchers, the monitoring device would prove useful in health-care facilities and eventually to the population at large.