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Electricity From Organ Movement Powers Body Implants

Someday, implanted medical devices such as a heart pacemaker may be powered by the movement of the body’s organs. Researchers have demonstrated the potential of natural organ motion to do just that. So-called piezoelectric materials produce electrical current when they are stressed or squeezed. Imagine, for example, electricity being created by stretching a rubber band. John Rogers and colleagues at the University of Illinois Urbana-Champaign have created a low-level current device by...

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