A new method for wirelessly powering medical electronics like pacemakers and nerve stimulators could mean new possibilities for treating illnesses and mitigating pain. As reported in the Proceedings of the National Academy of Sciences, a team led by Stanford electrical engineer Ada Poon constructed an electronic device smaller than a grain of rice that can be recharged wirelessly by a power source the size of a credit card. According to the paper published today, Poon's breakthrough discovery in wireless power requires roughly as much energy as a cell phone and exposes subjects to radiation levels well below the threshold for human safety.
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