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  • A bright idea: Tiny injectable LEDs help neuroscientists study the brain

    A thin plastic ribbon printed with advanced electronics is threaded through the eye of an ordinary sewing needle. The device, containing LEDs, electrodes and sensors, can be injected into the brain or other organs.

    A thin plastic ribbon printed with advanced electronics is threaded through the eye of an ordinary sewing needle. The device, containing LEDs, electrodes and sensors, can be injected into the brain or other organs.

    Photo courtesy John A. Rogers

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  • Editor's note: To reach John A. Rogers, call 217-244-4979; email jrogers@illinois.edu.

    The paper, “Injectable, Cellular-Scale Optoelectronics with Applications for Wireless Optogenetics,” is available from Science at scipak@aaas.org.