Nanogenerator Harvests Mechanical Energy

A nanogenerator that produces a continuous flow of electricity by harvesting mechanical energy from a variety of sources, including ultrasonic waves, mechanical movement or even blood flow was reported by the Georgia Institute of Technology. A prototype was reported upon in the April 6 issue of Science by Professor Zhong Lin Wang of the School of Materials Science and Engineering at Georgia Tech.


(Prototype DC nanogenerator closeup)

Dr. Zhong Lin Wang stated:

“This is a major step toward a portable, adaptable and cost-effective technology for powering nanoscale devices. There has been a lot of interest in making nanodevices, but we have tended not to think about how to power them. Our nanogenerator allows us to harvest or recycle energy from many sources to power these devices.”

The prototype nanogenerators use the following interesting properties of zinc oxide nanostructures; they show both piezoelectric and semiconducting features.

When these tiny wires are moved by mechanical energy, the nanowires transfer their minute electrical charges. By capturing the output of large numbers of nanowires in motion, the prototype nanogenerator produces a direct current output in the nano-Ampere range.


(Prototype DC nanogenerator w/array of zinc oxide nanowires)

Dr. Wang and his group believe that the nanowires could produce as much as 4 watts per cubic centimeter. “If you had a device like this in your shoes when you walked, you would be able to generate your own small current to power small electronics,” Wang noted. “Anything that makes the nanowires move within the generator can be used for generating power. Very little force is required to move them.”

Science fiction fans are always looking for ways to enable the creation of their favorite devices. For example, the stillsuit from Frank Herbert's 1965 novel Dune made use of the body's own mechanical energy to provide power for the suit, which captured perspiration and other body moisture and processed it for reuse.

It's basically a micro-sandwich; a high-efficiency filter and heat-exchange system. The skin-contact layer is porous. Perspiration passes through it, having cooled the body. Motions of the body, especially breathing, and [heel-powered pumps] provide the pumping force. With a Fremen suit in good working order, you won't lose more than a thimbleful of moisture a day...
(Read more about the dune stillsuit)

Read more stories about other attempts at harvesting power from mechanical motion:

Read more about how a Nanogenerator Provides Continuous Electrical Power.

Scroll down for more stories in the same category. (Story submitted 4/11/2007)

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 ")

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?

Integrated Circuits Printed Right Onto Fabric!
'...a shirt that displayed email on its sleeve. - Margaret Atwood, 2003.

Drones Guided By The Mind Alone
'His treads left no tracks upon the floor...' - Clifford Simak, 1961.

 

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

A 'Genuine Nanorobotic Production Factory'
'Microscopic machinery, smaller than ants, smaller than pins, working energetically, purposefully - constructing something...'

Neuromorphic Computer Offers Non-von Neumann Architecture
Fires faster than brain at 1/10K energy.

Evorus Your Crowd-Powered Conversational Assistant
'...the DS [Daily Schedule] was suddenly transformed into a valued confidante.'

Mealworms Food Of The Future
Get your grubs on.

Alibaba's AI May Read Better Than You
'Mike ... could accept other languages and was doing technical translating - and reading endlessly.'

Musk's Boring Flamethrower
'Skeletons in tatters. Burned by a flesh gun'

Humanity Star LEO Advertisement?
'Everyone has noticed those enormous advertisements...'

Nissan ProPILOT Slippers Are Self-Parking, Autonomous
Beyond science and fiction.

Atomristors - Atomic Memristors - Using Thin Nanomaterials
'I could almost feel those little tunnel junction neuristors working, forming their own interconnections as I operated it.'

Bigelow Prepares Inflatable Lunar Hotel
'Suddenly, hitherto unheard-of sums of money became available for investment in civilian orbital stations.'

Drunk Driver Of Tesla Claims Autopilot Was In Charge
'Mr. Garden, you are in no condition to drive.'

Medical Exoskeleton From Cyberdyne Gets FDA Approval
It's been a long road for HAL-5; I started writing about it in 2005.

Fungi-Infused Concrete Repairs Itself
'I noticed that curious mottled knots were forming, indicating where the room had been strained and healed faultily.'

Shiftwear Display Shoes
'He unlaced her shoe and glanced at its readout.'

NASA SEXTANT First With X-Ray Nav In Space
'You need at least four beacons for an accurate fix.'

GM Introduces Cruise AV With No Steering Wheel
'How about the steering wheel?' ... 'I do not need one.'

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.