Two Research Groups Create 'Electric Skin'

Flash Modin writes "Two separate teams, one from UC Berkeley and the other from Stanford, have created distinct types of artificial skin that could find uses in prosthetics or artificial intelligence (Data in First Contact, anyone?). The first team coupled organic electronics with an elastic polymer to make electric skin that could sense a butterfly landing on it (abstract). The second team put a flexible material over a conductive rubber compound which had transistors implanted in it. The device can sense touch when the rubber is compressed, changing the electrical resistance (abstract)."

Comments

Re:Use with prosthetics

[Ukab the Great]

Actually my first thought was sensory enhanced black latex cat suit that electrocutes bad guys.

Re:Use with prosthetics

[danlip]

Not only possible but fairly trivial. You don't have to tie directly into the nervous system, you can use the electrical signal to stimulate another patch of skin, and the brain will quickly learn to interpret the signal properly. But it is also possible (but less trivial) to tie directly into the nervous system - this is done on a regular basis with cochlear implants, and there are a few experimental retinal implants now too.

Re:What color?

[FauxPasIII]

> How long will it be before anybody develops artificial skin that matches anybody's skin color other than slightly tanned white males?

Oh, I think pale asian female will probably be along soon enough.

First Contact

[SOOPRcow]

Nerd point of order: Data's new skin in First Contact was actual organic human skin grafted over his exoskeleton.

Re:First Contact

[mcgrew]

Data's new skin in First Contact was actual organic human skin grafted over his exoskeleton.

I think that was his point -- that in some ways we've surpassed what Star Trek's writers could imagine just a short time ago. Like Star Trek II when McCoy couldn't cure Kirk's age related presbyopia; all he would have had to do would be transport Kirk's lenses out of his eyes, and transport a CrystaLens in its place.

I have one in my left eye (although they used a needle to remove/replace, of course). It not only cured my steroid-induced cataract, it cured my extreme myopia and my age-related presbyopia. If I'd had astigmatism it would have cured that too. I'm 58 and don't have to wear any corrective lenses at all after wearing thick glasses all my life.

But Star Trek's writers couldn't envision a focusable artificial lens, and had Kirk wearing reading glasses.

Re:Use with prosthetics

[IndustrialComplex]

Maybe there's another use I'm missing?

Robotics.

It's been a while since I designed any robots, but there is a big problem with robots in general in that unless you explicitly design sensors to detect something, it won't.

I can't get into the applications here (there are just too many) but having the ability to feel objects not perfectly lined up with the robot's programmed path could help prevent a lot of injuries.

Imagine a robot with this skin wrapped around it, as it moves, it comes into contact with something that it shouldn't have (Some guy), it immediately can stop that motion and hopefully just bruise the guy instead of just continuing mindlessly and slicing the guys arm off or crushing him to death.

That's just an off the top guess, but I would also very much like a robotic grasping arm that could sense pressure. It's easy to design something to grasp, and maybe even put in some resistance (ie: hooke's law), but getting a feel for the force it exerts and the exact positioning of that force could be very useful.

Imagine a grasping arm that doesn't need to be perfectly aligned with an object and could react to the thing it was grasping (ie: reducing the movement of one 'finger' if it felt the object slipping) being able to compensate for a misaligned object could be very useful.

Re:Use with prosthetics

[VanGarrett]

I guess everyone's first thought will be that they can use this with prosthetics so someone with a fake limb can actually feel. But, I don't see mention of how this could possibly connect to human nerves. Is that kind of thing even possible?

This is something which is already done with some current prosthetic limbs. Nerve endings from severed limbs are surgically transplanted to convenient mounting locations. Simple pressure-sensitive structures on the surface of the prosthetic fingers then transmit a signal to the contacting device on the other end of the artificial limb, which in turn, transfer that data to the transplanted nerve ending, by applying equivalent pressure. The prosthetic device is stimulating the same nerves that the original hand did, so the user experiences the sensation as though he still had it, with no need to re-learn signal patterns. Some cutting-edge prosthetics can also pick up nerve signals, and move at the command of the mind, rather than requiring the user to do something more awkward, such as wearing a pressure-sensitive insole in his shoe, and adjusting his balance, every time he wants to lift a spoon to his mouth.

Re:I Sing the Body Electric

[mcgrew]

Does your grandma dream of android sheep?