A team of researchers at South Korea's Seoul National University have been busy developing biologically-inspired electronic skin that is capable of "feeling" subtle stimulus such as bouncing water droplets and human heartbeats. The skin's surface is covered in two interlocked arrays of 50-nanometre-wide polymeric nanofibres that act like hairs on the surface of the skin, coming in contact with one another under the strain of external force. That contact then generates a current to help the skin gauge the changes in pressure, according to New Scientist. The creators of the flexible skin say that sensor response can be
