Zhenan Bao of Stanford University has created very sensitive artificial skin. He need it to “clothe” his Cyberdyne Systems Model 101. Okay, he didn’t really, but when it can detect pressures less than that of a butterfly, I would say that’s impressive. At least Terminator can destroy butterflies when they land on him.
The sensor consists of a very elastic rubber inner sheath surrounded by electrodes. This approximates our sense of touch in the skin. These nerve nets help us sense the world around use. I’m sure they will come up with pain sensors soon. Detecting temperature is easy, but I’m not sure about something like a cut. Here’s a video from Stanford about the work:
Seriously though, it does freak me out a bit thinking of robotic uses for this.