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Dec 10, 2007

Nanowires promise battery-free power

The battery has been a great servant for powering devices in situations where mains electricity is inappropriate, but it has its downsides, which include a relatively short life and a toxic composition. ZnO nanowire power generators are free from these weaknesses, and have the potential to drive small devices such as implanted biosensors, says Zhong Lin Wang from Georgia Institute of Technology.

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