Skin Wearable Harvests Power With Triboelectric Effect

This new wearable device harvests power from muscle movements under the skin. The postage-stamp-sized device takes advantage of the triboelectric effect.


(Flexible generator converts muscle movements into power)

The new device, which researchers from the National University of Singapore presented at the IEEE MEMS 2015 conference last week, can generate 90 volts of open circuit voltage when touched gently with a finger.

the triboelectric effect, electrical charge builds up on two dissimilar surfaces when they’re put in close contact. When they are pulled apart or flexed, a potential difference is generated and a current starts flowing between them that can be collected using an electrode.

“Skin, the most abundant surface on a human body, is a natural choice for one of the triboelectric layers,” says Lee’s graduate student Lokesh Dhakar. Device fabrication becomes simpler because you don’t need to make one of the layers, he says. “Also skin as a triboelectric material has a high tendency to donate electrons or get positively charged which is important in improving the performance of the device if the other triboelectric layer intentionally chosen as the one with a tendency to get negatively charged.”

For that negative layer, Dhakar and his colleagues created thousands of tiny pillar-like structures on a flexible silicone rubber layer. Underneath the rubber sheet, they bond a 50nm-thick gold film that acts as the device’s electrode. The pillars increase the surface area of the device that touches the skin, which increases friction and hence the current produced.

Fans of sf great Frank Herbert remember that the stillsuit from his 1965 masterpiece Dune used power harvesting from the body (the mechanical energy of breathing to generate power) to run the suit.

When he had tightened the chest to gain maximum pumping action from the motion of breathing, he had known what he did and why.

Via IEEE Spectrum.

Scroll down for more stories in the same category. (Story submitted 1/23/2015)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Engineering ")

Super-Resolution Microscopy Provides '4D' Views
View the magnified interior of living cells.

Physicists Try To Turn Light Into Matter
If E=mc squared, then... m=E/c squared!

Dune Fans! Power Your Devices With Sweaty Shirts
Yet another power source from humans.

Zero Mass 'Vaporators' Pull Drinking Water From The Air
Did you think of Star Wars?

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

IBM's Grain Of Sand Computer
'Our ancestors... thought to make the very sand beneath their feet intelligent...'

Liquid Metal Shape-Changing 'Soft Robotics'
'A mimetic poly-alloy... 'What the hell does that mean?''

The Hammock Caravan And Italo Calvino's Octavia
'Now I will tell you how Octavia, the spider-web city, is made.'

Super-Resolution Microscopy Provides '4D' Views
View the magnified interior of living cells.

Have I Seen The Tesla Roadster Story Before?
'Only it wasn't a vessel. It was an automobile...'

Watch 'Do You Trust This Computer' For Free Today
Thanks for making this available, Elon.

Self-Driving Car Ticketed
This just missed making my day.

Elon Musk Tweets Versions Of Clarke's Operation Cleanup
'Fortunately, the old orbital forts were superbly equipped for this task.'

Burner Generates Temporary Phone Numbers
'Interesting phone system he's got, by the way...'

Walmart’s Autonomous Robot Bees
Everyone loves bees.

EA Created AI That Taught Itself To Play Battlefield
Harmless fun for computer scientists.

Is Teleportation A Death Sentence?
'A long trail of dead, he thought, left across the stars...'

New Brain Scanner Lets You Move Around
'In Bob Arctor's living room his thousand dollar custom-quality cephscope crafted by Altec...'

Can An Entire Brain Be Simulated In A Computer?
'The miles of relays and photocells had given way to the spongy globe of platinum iridium about the size of the human brain.'

Physicists Try To Turn Light Into Matter
If E=mc squared, then... m=E/c squared!

Save Your Brain's Connectome, Upload Yourself Elsewhere
'You've got remote storage. How regular is the update?'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.