The November 2023 issue of IEEE Spectrum is here!

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iCandy: Electronics for Power and Play

A giant circuit breaker, a virtual pop star, and a wind turbine at a ballpark

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Photo: Rensselaer Polytechnic Institute
These two discs—which under magnification look like homemade pennies—are implantable sensors developed by researchers at the Rensselaer Polytechnic Institute, in Troy, N.Y. They are designed to wirelessly transmit data from inside a patient’s healing wound so surgeons can get real-time data about the state of the person’s recovery. The 4-millimeter-wide, 0.5-mm-thick sensor is powered by the same external device that captures the data.

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