The implant will return the person tactile sensations. Free Technical Library News

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The implant will return a person to tactile sensations

30.07.2021

Numerous research groups around the world are developing various versions of the triboelectric nanogenerator (TENG) capable of converting the mechanical energy of the environment into electricity. A group of scientists from the Department of Biomedical Engineering at Tel Aviv University has created a unique implant that can restore the sensitivity of any part of the human body.

During the experiment, the high efficiency of the technique was shown in restoring the tactile sensations of the patient's fingertips. The sensitivity of various parts of the human body is usually reduced as a result of nerve damage due to injuries, burns or bruises. Scientists implanted a TENG implant under the patient's skin, capable of generating an electrical charge in the process of rubbing two different dielectric materials against each other. This approach allows you to simulate the work of damaged human nerves.

The implant developed by Israeli scientists consists of two square-shaped plates placed one above the other with a minimum gap. In the process of touching the surface with the fingers, pressure is created and when the plates come into contact, an electric charge is generated that travels through the wires to healthy nerve endings, which transmit the signal further to the central nervous system. The implant does not require an additional power source.

The first trials of TENG were carried out on rats, whose hind legs were given tactile sensations, allowing animals with damaged nerves to regain their walking skills. Experiments with humans are planned in the near future.

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