Navigation Links
UBC researchers invent tiny artificial muscles with the strength, flexibility of elephant trunk
Date:10/13/2011

xas at Dallas and then tested as an artificial muscle in Madden's lab at UBC. A chance discovery by collaborators from Wollongong showed the enormous twist developed by the device. Guided by theory at UBC and further experiments in Wollongong and Texas, the team was able to extract considerable torsion and power from the yarns.

The torsional rotation of helically wound muscles, such as those in the flagella of bacteria, has existed in nature for hundreds of millions of years. Many other natural appendages -- from the trunk of an elephant to octopus's powerful and limber tentacles also show how helically wound muscle fibers cause rotation by contracting against a boneless core.

The nanotube yarns are activated by charging them in a salt solution, much as a battery is charged. A breakthrough discovery came from former UBC PhD student Tissaphern Mirfakhrai now at Stanford who found that the deformation of the yarns is proportional to the size and number of ions inserted. A similar effect is seen in lithium ion battery electrodes used in portable electronic devices, but in yarns it is put to good use. The helical structure of the yarns makes them unwind as they accept charge and swell. They twist back up again when discharged.

"The discovery, characterization, and understanding of these high performance torsional motors show the power of international collaborations," says corresponding author Ray Baughman, Robert A. Welch Professor of Chemistry and director of the University of Texas at Dallas Alan G. MacDiarmid NanoTech Institute.


'/>"/>

Contact: lorraine.chan@ubc.ca
lorraine.chan@ubc.ca
604-822-2644
University of British Columbia
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Notre Dame researchers awarded millions to develop radically new computers
2. 1 room -- 63 different dust particles? Researchers aim to build dust library
3. Mirage-effect helps researchers hide objects
4. Boston College Researchers discover 2 early stages of carbon nanotube growth
5. Researchers use carbon nanotubes to make solar cells affordable, flexible
6. Roche Researchers Sequence Complete Genome of Cynomolgus Monkey and Develop Novel Gene Expression Microarray for Drug Safety Assessment
7. Slippery slope:Researchers take advice from a carnivorous plant
8. University of Western Ontario researchers investigate stress and breast cancer
9. Rice researchers power line-voltage light bulb with nanotube wire
10. Stevens researchers pioneer novel technique to make plasmonic nanogap arrays
11. High-Level Neurotech Summit Brings Companies, Researchers and Investors Together in Helsinki
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/25/2014)... 26, 2014 "Ischemic Stroke and ... provides data on the Ischemic Stroke and Cerebral ... information and data relating to the clinical trials ... full global Ischemic Stroke Research Report 2014 at: ... of the trial numbers and their recruitment status ...
(Date:7/25/2014)... from the University of Leicester has furthered our ... potential to create new materials using nanosized ,building ... in the prestigious academic journal Physical Review ... examine in rich detail the structure and internal ... acetylene molecule and a single helium atom. , ...
(Date:7/25/2014)... 25, 2014 WABC Radio show out of ... with Lorry Young will be hosting California-based Vet-Stem, Inc.’s Founder ... cell therapy in pets. Dr. Harman first visited the ... cell therapy for pets suffering from osteoarthritis and other degenerative ... Medicine industry forward. , Young has invited Dr. Harman back ...
(Date:7/25/2014)...  Galmed Pharmaceuticals Ltd. (Nasdaq: GLMD ) ... and commercialization of a once-daily, oral therapy for the ... financial results for the period ended June 30, 2014. ... Reported cash and cash equivalents totaling $37.4 million on ... 2013.  , Reported a net loss of $3.9 ...
Breaking Biology Technology:Ischemic Stroke and Cerebral Stroke Global Clinical Trials Review H2, 2014: MarketResearchReports.Biz 2Ischemic Stroke and Cerebral Stroke Global Clinical Trials Review H2, 2014: MarketResearchReports.Biz 3Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 2Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 3Robert J. Harman, DVM, Founder and CEO of Vet-Stem, Inc. to Join New York Radio Host Lorry Young in Upcoming Episode of A “Paws” For Your Pet 2Robert J. Harman, DVM, Founder and CEO of Vet-Stem, Inc. to Join New York Radio Host Lorry Young in Upcoming Episode of A “Paws” For Your Pet 3Galmed Pharmaceuticals Reports First Half 2014 Financial Results 2Galmed Pharmaceuticals Reports First Half 2014 Financial Results 3Galmed Pharmaceuticals Reports First Half 2014 Financial Results 4Galmed Pharmaceuticals Reports First Half 2014 Financial Results 5Galmed Pharmaceuticals Reports First Half 2014 Financial Results 6
... June 27 the U.S. Supreme Court decided Metro-Goldwyn-Mayer ... decision affects how software companies and other technology providers ... be used to play, transmit or store copyrighted content. ... favor of MGM, reversing a lower court decision favoring ...
... MDVIP, Inc. , named former Wisconsin Governor and U.S. ... of the MDVIP Committee on Cost Reduction through Preventive Healthcare. ... of a network of 82 physicians in 14 states. Member ... the traditional primary care practice of 2,500 patients, and focus ...
... Wis. It should have been another normal London ... it was a day touched by terror. , ,Shortly after ... trader Matthew rode a borrowed bicycle from the citys Financial ... their two daughters, Madeline and Lillie, made it safely home. ...
Cached Biology Technology:Tech vendors could be liable for customer behavior - and not just file sharing 2Tech vendors could be liable for customer behavior - and not just file sharing 3Western way of life is under attack from jihad sub-culture 2Western way of life is under attack from jihad sub-culture 3
(Date:7/25/2014)... Stowers Institute for Medical Research have identified the ... pheromones crucial to triggering the mating process in mice. ... male mouse detect pheromones that indicate when a female ... know if the female mouse is ovulating and ready ... trigger mating. Stowers, researchers believe mice developed this system ...
(Date:7/24/2014)... NY (July 24, 2014) Scientists at The ... are one step closer to creating a viable ... patient,s own cells. , For the first ... cells lines from skin samples of patients with ... an accelerated protocol to induce these stem cells ...
(Date:7/24/2014)... Scientists at The New York Stem Cell ... to creating a viable cell replacement therapy for ... , For the first time, NYSCF scientists generated ... samples of patients with primary progressive multiple sclerosis ... induce these stem cells into becoming oligodendrocytes, the ...
Breaking Biology News(10 mins):It takes two to court 2It takes two to court 3NYSCF scientists one step closer to cell therapy for multiple sclerosis patients 2NYSCF scientists 1 step closer to cell therapy for multiple sclerosis patients 2
... Calif., Nov. 14, 2012   Masimo (NASDAQ: ... present at the 24th Annual Piper Jaffray Health Care Conference at ... 28, 2012, at 2:00 p.m. Eastern Time.  A live audiocast ... at www.masimo.com .  A replay of the audiocast will ...
... Conn. The University of Connecticut announced today that ... funded by the Bill & Melinda Gates Foundation. ... Engineering) and Daniel J. Gage (Molecular & Cell Biology) ... project intended to increase crop yields in developing countries ...
... Mich. A study led by a Michigan State University ... type of specialized foot massage practiced since the age of ... perform daily tasks. Funded by the National Cancer Institute ... Forum , it is the first large-scale, randomized study of ...
Cached Biology News:Masimo to Present at 24th Annual Piper Jaffray Health Care Conference 2Masimo to Present at 24th Annual Piper Jaffray Health Care Conference 3UConn receives Grand Challenges Explorations Grant for research in global health and development 2Ancient foot massage technique may ease cancer symptoms 2
... to significantly increase the shelf life of ... increased at room temperature storage conditions in ... is subjected to 0.2 micron filtration, and ... formulation insures consistently high levels of activity ...
... strength adhesive system which facilitates the easy removal ... either side of the frame are of differing ... has an easy release adhesive whereas the reverse, ... bond. This means that when the coverslip is ...
... filters suitable for use in the Microsart e.motion ... each filter, in a specially designed individual package ... of the band of membrane filter units ensures ... shape of the sealed band guarantees uniform dispensing ...
...
Biology Products: