Mesh allows brain mapping of individual neurons

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We have recently seen the development of number of potential treatments for neurological conditions, such as virtual reality used to help treat Alzheimer’s patients and a device that helps stroke victims regain mobility by sending electrical signals to their brain. One key to developing effective new treatments for neurological conditions such as Parkinson’s and Alzheimer’s is finding a way to better understand what is happening in the brain. To do this, it is necessary to monitor and map the activity of neurons in the brain. Up to now, the most accurate devices for taking these types of measurements have been intracranial probes, which are surgically implanted in or near the brain. Now, a team of nanoscientists at Harvard have developed an electronic mesh, around the width of a human hair, which is flexible enough to be stuffed into the needle of a syringe and injected into the brain. Once injected, the mesh unfurls to make contact with the brain, where it can then record the activity of individual neurons.

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