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Microscopic Robots Powered by Light Could Aid Medical Diagnostics

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Using novel nanofabrication techniques, researchers from the University of Pennsylvania and Cornell University have built micro-robots made from silicon and powered by solar cells. One million functional microscopic robots can be produced from a 4-in. silicon wafer. Researchers have created tiny, functional, remote-powered, walking robots, developing a multistep nanofabrication technique that turns a 4-in. specialized silicon wafer into a million microscopic robots in just weeks. Each one of a robot’s four legs is just under 100 atoms thick, but they propel the tiny robots,...Read full article

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