When tattoos are medical sensors

Medical transplants, such as temporary tattoos, can help doctors detect early metabolic problems.

The sensor, called 'Happy Face,' is designed as a thin and flexible sticker, according to the DVICE website, which brings together experts from the University of Toronto (Canada).

The tiny, cute device is equipped with an ion-exchange electrode to monitor the pH level of the skin, which is associated with changes in the metabolism of the body.

In addition to the ability to detect metabolic diseases such as adrenal insufficiency, Happy Face can also be used in the field of sports, allowing coaches to determine the appropriate cycle of athlete.

The patch is made using a standard printer, and it is non-toxic, as well as easy to remove, according to graduate student Vincy Hung who gave the idea of Happy Face.

Although the health monitoring technology is not new, the breakthrough here is that Hungarian physician has created a device that can allow the sensor to stick to the human body, according to a press release from the University. Toronto.