Nanogenerators May Spark Miniature Machines (Update)

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Georgia Tech Professor Zhong Lin Wang holds a sample nanowire array that can produce electrical current from mechanical energy. Credit: Gary Meek
Georgia Tech Professor Zhong Lin Wang holds a sample nanowire array that can produce electrical current from mechanical energy. Credit: Gary Meek

Researchers have developed a new technique for powering nanometer-scale devices without the need for bulky energy sources such as batteries. By converting mechanical energy from body movement, muscle stretching or water flow into electricity, these "nanogenerators" could make possible a new class of self-powered implantable medical devices, sensors and portable electronics.


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