How does a fingertip energy collector work?

While you sleep, a device harvests energy from your sweaty fingertips An energy collector in contact with the skin is efficient enough to power some electronic devices. A thin, flexible device worn on a fingertip can harvest energy from a sleeping person’s sweat to power small, wearable electronics.

Can a fingertip power a wearable?

A thin, flexible device worn on a fingertip can harvest energy from a sleeping person’s sweat to power small, wearable electronics. From smart watches to health monitors, wearable technology is becoming an integral part of everyday life. But finding convenient power sources has been difficult.

How much energy can you get from a fingertip?

An hour of light typing or clicking on a mouse produced nearly 30 millijoules from a single fingertip. Adding strips to the rest of the fingers could potentially produce ten times more energy, making for a great return on energy investment. "When you are sleeping, you are putting in no work," said Yin.

What is a fingertip energy management module?

The fingertip energy management module is designed to incorporate the combined chemical properties of BFCs and AgCl-Zn batteries. The BFC chemistry and the battery have been carefully characterized to ensure matching operating potentials and complementary characteristics for commensurate performance.

Can finger sweat be used as a source of electricity?

This thin, flexible strip generates small amounts of electricity from finger sweat. A new wearable device turns the touch of a finger into a source of power for small electronics and sensors.

Can a sweat metabolite sensor be mounted on a finger?

Writing in Nature Electronics, Joseph Wang and colleagues now report an integrated system that can be mounted on a finger for self-powered and non-invasive sweat metabolite sensing 9. The system consists of a sustainable passive energy harvester, an autonomous energy storage unit and a self-powered multiplexed sensor array (Fig. 1a).