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An implantable microLED optrode array, developed by researchers at the University of Strathclyde and the University of Utah, is capable of exciting below-surface neurons in large mammal brains both by structured-light delivery and by large-volume illumination. Through its depth of access, heat control, and an electric delivery system that will be compatible with future wireless applications, the new array could advance the use of optogenetics in studies of large mammal brains.
To build the device, the researchers integrated a glass microneedle array with a custom-fabricated microLED device. The array of 181 80 μm × 80 μm2 microLEDs was fabricated on a…READ MORE