This artificial skin could bring touch sensation to prosthetic limbs

Some prosthetic limbs are so advanced they can be controlled by the brain, but no bionic arm or leg will ever be truly be life-like until they have “skin” that can feel. This new artificial skin developed by a team of American and Korean researchers, for instance, has a dense network of sensors made of silicon and gold that mimic the sensitivity of real skin. The amount of sensors present is important, because as Roozbeh Ghaffari said: “If you have these sensors at high resolution across the finger, you can give the same tactile touch that the normal hand would convey to the brain.”.