People Innovation Excellence

Injectable Optoelectronics for Brain Control

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Optogenetics, a recently developed technique that uses light to map and control brain activity, requires the genetic modification of an animal’s brain cells and the insertion of optical fibers and electrical wire into its brain. The bulky wires and fibers emerge from the skull, hampering the animal’s movement and making it difficult to perform certain experiments that could lead to breakthroughs for Parkinson’s diseaseaddictiondepression, andspinal cord injuries.

But now, a new ultrathin, flexible device laden with light-emitting diodes and sensors, both the size of individual brain cells, promises to make optogenetics completely wireless. The 20-micrometer-thick device can be safely injected deep into the brain and controlled and powered using radio-frequency signals. Its developers say the technology could also be used in other parts of the body, with broad implications for medical diagnosis and therapy. [Read More]


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