Researcher Ben Maoz was on a walk with hand surgeon Amir Arami when Maoz had an idea. He says that Arami, his friend and colleague, was lamenting that about half of his patients endure permanent loss of sensation after trauma to the nerves or skin of the hand. Maoz, a faculty member in the Department of Biomedical Engineering and the School of Neuroscience at Tel Aviv University, thought he could use his lab’s technology to develop a solution.
The self-powered sensor, called an integrated tactile triboelectric nanogenerator , uses friction to build a charge of static electricity between two plates about the size of a pencil top eraser. In humans, the sensor would be implanted under the skin, such as beneath a desensitized finger.
Hossam Haick, a professor of nanotechnology and biomedical engineering at the Technion – Israel Institute of Technology who was not involved in the study, says that the scientists could apply the technology far beyond the realm of robotics, where most similar devices end up today. “He has done it for humans, and this is a big breakthrough.”Nearly 3 percent of trauma patients suffer peripheral nerve damage, which can cause chronic pain, disability and loss of sensation in the body’s extremities.
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