A plastic skin impregnated with printed sensors could be wrapped around an airplane wing, for instance

Gold Film Embedded In A Plastic Sheet Corinne Packard and Apoorva Murarka, via MIT

Microelectromechanical devices (MEMS) have the potential to enable a wide range of nanomachines. Unfortunately, MEMS suffer from the critical drawbacks of an expensive manufacturing process, a high rigidity that restricts their use, and a limited pool of suitable materials for construction. Now, it seems that MIT scientists have accidentally solved all those problems by stamping gold MEMS into a sheet of plastic.

The happy accident occurred while the researchers tried to develop a new method of printing circuits onto plastic. However, after repeated failures, the scientists realized that the metallic spots they hoped would carry a signal were actually small machines.

"The first couple times we did this, we were like, 'Ah! Bummer, man,'" said Vladimir Bulovi, a professor of electrical engineering at MIT. "And then a light bulb went off, and we said, 'Well, but we just made the world's first printed MEM.'"

MEMS Sheet : Plastic sheet with gold MEMS.  Corinne Packard, via MIT
By printing a conductive metal onto a sheet of ridged plastic, the MIT researchers created a mechanical actuator that bends when in contact with an electric charge. Conversely, if the material is bent the right way, then the sheet of plastic becomes conductive.

With both conductive and mechanical properties, the flexibility of the plastic substrate, and the ease of manufacturing inherent in the printing process, the MIT scientists created an incredibly versatile product.

For instance, the plastic skin could be wrapped around airplane wings or bridge pylons and send a signal when faced with integrity-jeopardizing deformation. Or, the actuator could serve as a base for more complex nanomachines that sort, build, or transport materials at a tiny scale. In fact, the gold MEMS are so small that sound waves can deform them, opening up the possibility of nano-microphones.

Really, it's not fair. Even when MIT scientists make a mistake, they end up inventing amazing machines.

[MIT]

12 Comments

"By printing a conductive metal onto a sheet of ridged plastic"

rigid?

or a plastic sheet with ridges?

Nevermind. The MIT website explains it more. It is, indeed, ridged.

convert sound waves into electricity.

lol... somehow doesn't seem fair, does it? When they are that smart, getting lucky just seems to come natural.

VR
Don Gardon

"Who gets the profits off of these discoveries?

The patents off of something like this have to be worth quite a bit.
"

Whoever or whatever company gets to them first. Or vise versa, whatever company says yes first to their requests to pursue the idea.

And experimentation(the 'mistake') is not limited to MIT..luck isn't either if you believe in it.

Think of the surviellance capabilities, who needs to eavsdrop on phone calls when a lil gold silver or even platinum speck on a rigid piece of plastic. Telecommunications will never be the same!!! And thats just one possibility. Is that scary or are we supposed to feel secure????

" Telecommunications will never be the same!!! "

Huh.

You could use this two opposite ways. Print this coating on a thin sheet of plastic, send a sound signal to it... no need for a traditional speaker. The plastic would deform with the electrical signal, vibrate, and give off sound waves.

The other way? Print this coating on the surface of a cellphones' screen.

As sound vibrations hit the coating, the phone picks up even a whisper.

Of course, it could also be applied as wallpaper. So the slightest sound in a room would be picked up by 100,000 microphones.

With that signal, and a little data analysis, you could pinpoint exactly where the sound source was. I mean, EXACTLY. How do you beat a security system with 100,000 ears listening for your heartbeat?

Hmmm. Come to think of it, imagine a media room with this special wallpaper. Then send different sound files to different areas.

Each micromachine acts as an independent speaker.

You could make a sound hologram of a concert hall, then play it back in your own home exactly as you heard it, as if you were THERE.

DAMMIT! I was hoping for the same thing.I was hoping that really fast talking guy would read the article to me.
BTW,Made of tiny car models?...Oh.
Wudi20
www.squidoo.com/medicalquestions

As a traditional employee in the printing industry I understand the technology, however what really excites me is the process of arriving at an solution. That elation, is felt through the words of this article. The inspiration! Fantastic.

www.eezytrade.co.uk

DAMMIT! I was hoping for the same thing.I was hoping that really fast talking guy would read the article to me.

Evail
http://burnwiigames.org/

This flexible coasting process for printing has thousands of unique applications that the marketing companies will be jumping on. http://www.calgary--hotels.com

Something that is pissing me off lately is the Toyota acceleration deal.

Having just read about the guy in California, it makes me wonder how someone can climb into a car and be so ignorant as to how to operate it.

While I’m glad that Americans are finally waking up from the delusion of superior Japanese engineering, that may have been true in the eighties, it seems to me that these “accidents” are less Toyota’s fault and more the absolute stupidity of the driver’s involved. Perhaps we need to put basic mechanics on driver’s tests.

It just boggles my mind when so called educated people have no clue about the world about them. It jibes with the idiocy we see in voting and people killing themselves with generators, and thinking Sarah Palin has a clue. What next? Someone will probably think it’s cool to swim with Killer Whales.

Negoita | http://p0ker.ro



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