Researchers reported the creation of piezoelectric energy harvesting nanogenerators on both silicon and polymer substrates.
Energy harvesters could eventually power small electronic devices from environmental motions. A medical implant, for example, might be powered by the mechanical energy in flowing blood.
So far energy harvesters have been able to generate 1.6 volts at 30 nanoamps, but researchers plan to increase both the voltage and current output capabilities of future piezoelectric nanogenerators by adding more fibers and optimizing the architecture.
Tiny nanogenerators could eventually power nanorobots that would inhabit a patient's bloodstream for extended periods, taking samples and transmitting diagnostic data to doctors for analysis
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