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The sensors of the human body are again a little more realistic

Researchers at Sandford have developed wireless sensors that can monitor the human body and monitor human health. These are experimental stickers that adhere to the skin.

Scientists have developed a method for detecting skin-based physiological signals by using sensors attached to it and transmitting wireless data to the receiver located eg. in the pants pocket.

Every electronic device needs power and this always causes a problem for the human body. However, it seems that scientists have come up with a solution. Their BodyNet sensor collects energy and transmits data by connecting RFID to a garment receiver.

Thanks to this combination, the sensor itself can be relatively comfortable, according to scientists, as an elastic bandage. The receiver is larger, using Bluetooth communication technology, which transmits the acquired data – to a smartphone or computer.

BodyNet can measure subtle changes in the skin that can give a lot of information about the body, whether it's heart rate, breathing or muscle activity.

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Chemical engineering professor Henen Bao described this system in an article for Electronics. He believes that this technology can be applied not only in the laboratory but also in practice in the medical environment. His lab aims to create several wireless sensors that stick to the skin and work in conjunction with smart clothing to accurately track a wider range of health indicators than today's smartphones or smartphones can provide.

The BodyNet sticker looks like an ID card. It has an antenna that captures the low energy coming from RFID from the receiver, which empowers the sensors. It then reads the skin values ​​and transfers them back to the nearby receiver.


To work with such a wireless sticker, scientists had to build an antenna that could be stretched and bent like a skin. They did this by printing metal ink on a rubber sticker screen. Because of this, they had to develop a new kind of RFID system that, despite the fluctuations, could send strong and accurate signals.

The system has so far been limited by the required proximity between the sensor and the receiver. It is not important for trial use in heart monitoring or sleep disorders, but it is not ready for use in daily life.

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Of course, scientists are already working on newer, more mature stickers that could detect body temperature or levels of sweat stress, for example.

"We believe that one day it will be possible to create a series of whole-body skin sensors to collect physiological data without interfering with a person's normal behavior." said Professor Bao.

BodyNet, as well as other similar systems being worn, could thus improve the quality of life of people with various diseases in the near future, athletes who monitor their performance and, of course, ordinary people who serve as health and supervision day and night.

sourceStanford, natural electronics

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