Can I charge my smartphone with a finger swipe ?

Charging your smartphone with just a finger swipe may soon be possible, thanks to a new low-cost, film-like device that can harvest energy from human motion.

Using the device, known as a nanogenerator, scientists successfully operated an LCD touch screen, a bank of 20 LED lights and a flexible keyboard, all with a simple touching or pressing motion and without the aid of a battery.

“We’re on the path towards wearable devices powered by human motion,” said Nelson Sepulveda, associate professor at Michigan State University in the US. “What I foresee, relatively soon, is the capability of not having to charge your cell phone for an entire week, for example, because that energy will be produced by your movement,” said Sepulveda.

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