Prosthetic limbs that can be controlled by an amputee’s thoughts or muscle movements already exist. But what if they could also sense the environment and then send that information back to the amputee’s nervous system?In order to create prosthetics that can function more like real body parts, scientists are designing artificial skins that pick up on tactile information. So far, these skins have gotten very good at sensing pressure—in fact, a skin designed by Stanford engineers is 1,000 times more sensitive than human skin. Another is self-healing.But a new skin built by researchers in South Korea may be the smartest artificial skin yet. It’s stretchy, like real skin, and it can sense pressure, temperature, and humidity. It even has a built-in heater so it feels like living tissue. The researchers tested the artificial skin on a prosthetic hand, and they hope that some day, it will interface with a patient’s nerves so amputees can feel everything the fake skin feels.

via Stretchy Artificial Skin Lets Prosthetic Hand Sense Heat, Humidity, and Pressure | Popular Science.