Smaller, More Controllable Neural Implants Advance Optogenetics

Smaller, More Controllable Neural Implants Advance Optogenetics

Wireless and battery-free implant with advanced control over targeted neuron groups. Credit: University of Arizona

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Optogenetics is a biological technique that uses light to turn specific neuron groups in the brain on or off. For example, researchers might use optogenetic stimulation to restore movement in case of paralysis or, in the future, to turn off the areas of the brain or spine that cause pain, eliminating the need for — and the increasing dependence on — opioids and other painkillers.

“We’re making these tools to understand how different parts of the brain work,” Gutruf said. “The advantage with optogenetics is that you have cell specificity: You can target specific groups of neurons and investigate their function and relation in the context of the whole brain.”

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