Dec 19, 2019
Engineers develop a less invasive way to study the brain
Posted by Paul Battista in categories: genetics, nanotechnology, neuroscience
Optogenetics, a tool for controlling neurons with light, has given neuroscientists the ability to flip brain cells on and off more or less at will, revolutionizing neuroscience.
Yet the technique faces a fundamental challenge: To study all but the outermost part of the brain, researchers need to implant fiber optics or other invasive devices to deliver light deep into the brain.
Now, in Proceedings of the National Academy of Sciences, Stanford researchers report that they’ve found a less invasive way to do so: injectable nanoparticles that convert sound waves, which can easily penetrate into the brain, into light.