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Nanowires Turn Vibrations into Electricity
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Written by Gizmo   
Monday, 09 April 2007 13:10

JR Minkel
Scientific American

Researchers have conjured up a trickle of electricity by zapping tiny nanowires with ultrasound. If they can grow that trickle into a stream, the technology might turn everyday vibrations into power for miniature sensors that could be sprinkled in the environment or implanted in the body. 

Read the full story at Scientific American :

Everyone knows that nanotechnology means really small stuff, such as sensors that could be placed inside the body to monitor blood sugar or on the battlefield to sniff out poison gas. But as sophisticated as these devices are, they are still burdened because they rely on an outside power. "The size of the entire device is determined by the size of the power source," says nanotechnologist Zhong Lin Wang of the Georgia Institute of Technology. On top of that, he says, batteries require toxic chemicals and have to be replaced periodically.

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