Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
Generate Elecricity From Breathing With Microbelt PVDF Device
A tiny microbelt made of polyvinylidene fluoride (PVDF) can produce electricity from human respiration. PVDF accumulates an electrical charge in response to the applied mechanical stress delivered from the low-speed airflow associated with normal human breathing.
(Microbelt PVDF device)
“Basically, we are harvesting mechanical energy from biological systems. The airflow of normal human respiration is typically below about two meters per second,” says [Materials Science and Engineering Assistant Professor Xudong] Wang. “We calculated that if we could make this material thin enough, small vibrations could produce a microwatt of electrical energy that could be useful for sensors or other devices implanted in the face.”Wang’s team used an ion-etching process to carefully thin material while preserving its piezoelectric properties. With improvements, he believes the thickness can be controlled down to the submicron level. Because PVDF is biocompatible, he says the development represents a significant advance toward creating a practical micro-scale device for harvesting energy from respiration.
Fans of sf great Frank Herbert remember that the stillsuit from his 1965 masterpiece Dune also used 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.
The stillsuit also used filt-plugs to capture moisture, but not for energy harvesting.
From PVDF microbelts for harvesting energy from respiration via the University of Wisconsin via MedGadget.
Scroll down for more stories in the same category. (Story submitted 10/8/2011)
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 ")
3D Printing A 12-Meter Boat Hull
'It makes drawings in the air...' - Murray Leinster, 1945
China Still Working On Rescue Robot That Eats People
Firefighter Rescue Robot Eats Humans - again!
Can One Robot Do Many Tasks?
'... with the Master-operator all you have to do is push one! A remarkable achievement!' - Robert Sheckley, 1952.
Roborock Saros Z70 Is A Robot Vacuum With An Arm
'Anything larger than a BB shot it picked up and placed in a tray...' - Robert Heinlein, 1956.
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.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
Japan's AI Buddharoid Automonks
'...each of them is a neural mapping of the mind of a Tibetan monk who actually lived.'
The New Habitable Zones Include Asimov's Ribbon Worlds
'...there's a narrow belt where the climate is moderate.'
MIT Computerized Bionic Leg Is Part Of The User
'The leg was to function, in a way, as a servo-mechanism operated by Larry’s brain, through the mediation of the electronic brain in the leg.'
California Governor Candidate Calls For Voting By Phone
'... every veephone on the continent would display, over and over, two propositions.'
Robots For Hire En Masse
'...small investors profited, too.'
China's Handheld Electromagnetic Gun
'Completely silent, accurate up to about twenty meters. No recoil...'
3D Printing A 12-Meter Boat Hull
'It makes drawings in the air...'
China Still Working On Rescue Robot That Eats People
Firefighter Rescue Robot Eats Humans - again!
Lawyer AIs Create Chaos In Our Legal System
'I want my lawyer program.'
Chinese Hospital Tries Vonnegut's 'Harrison Bergeron' Cosplay
'He wore spectacles with thick wavy lenses. The spectacles were intended to make him not only half
blind, but to give him whanging headaches besides.'
Robot Clerks Become A Reality In China
'The robot clerk in the waiting-room checked her number...'
Can One Robot Do Many Tasks?
'... with the Master-operator all you have to do is push one! A remarkable achievement!'
Atlas Robot Makes Uncomfortable Movements
'Not like me. A T-1000, advanced prototype. A mimetic poly-alloy. Liquid metal.'
Boring Company Drills Asimov's Single Vehicle Tunnels
'It was riddled with holes that were the mouths of tunnels.'
Humanoid Robots Tickle The Ivories
'The massive feet working the pedals, arms and hands flashing and glinting...'
A Remarkable Coincidence
'There is a philosophical problem of some difficulty here...'
