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:1/22/2015)... 2015 Controlled Substance Compliance Services (CSCS), ... companies check the legal requirements around using controlled substances ... , As their international operations expand and become ... solutions built as a result of the first phase ...
(Date:1/22/2015)... Nueva Jersey , 22 de enero de 2015  El ... abre hoy su llamada a nominaciones para 2015. Este ... ha hecho, o tiene el potencial para hacer, contribuciones ... nominaciones se aceptarán hasta el 15 de marzo de ...
(Date:1/22/2015)... 2015   GenoSpace , a precision medicine software company that ... broad use of genomic, imaging and other biomedical data in ... Michelle Munson , CEO of Aspera, an IBM Company, to ... http://photos.prnewswire.com/prnh/20150122/170713 "We are pleased to ...
(Date:12/24/2014)... SILVER SPRING, Md. , Dec. 24, 2014  United ... that Medtronic, Inc. (NYSE: MDT ) has ... and Drug Administration (FDA) for the use of Medtronic,s ... a newly developed catheter) for use with United Therapeutics, ...
Breaking Biology Technology:Global Compliance Service for Controlled Substances to Expand to China 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4GenoSpace Expands Board with Appointment of Michelle Munson 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4
(Date:1/22/2015)... POINT ROBERTS, Washington , January 20, 2015 ... sectors including technology and tech stocks, releases video from the ... pickpocket and security consultant Apollo Robbins . ... about the Wocket™ biometric smart wallet, a product of NXT-ID, ...
(Date:1/22/2015)... has launched its new NXG series of time clocks with ... higher standard for collecting attendance and labor data and complements ... touch screen interface and seamless connection to cloud-based iSolved, the ... for the small to mid-size employer. The G2 ...
(Date:12/19/2014)... Research and Markets ( http://www.researchandmarkets.com/research/8kmfcn/iphone_5s ) has ... Sensor - Apple/AuthenTec TMDR92 & Sapphire - Technology Report" ... http://photos.prnewswire.com/prnh/20130307/600769 Following the acquisition of ... feature with the iPhone 5S. It is currently the ...
Breaking Biology News(10 mins):Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 3Infinisource's NXG series sets new time clock standard 2iPhone 5S Fingerprint Sensor - Apple/AuthenTec TMDR92 & Sapphire - Technology Report 2
... a nation-wide study published in the latest issue of ... in AIDS Care (JIAPAC), HIV positive patients and their ... how it's treated. , The study uncovered differences of ... treatment, the various goals of treatment, and even about ...
... chewing gum containing good bacteria that can destroy the ... the shops soon reports Marina Murphy in C&I. The ... German chemical company BASF using the bacteria Lactobacillus, which ... discovered a new strain of lactobacillus called L. anti-caries, ...
... the spread of deadly strains of avian flu such ... and Warwick have found. The research shows that even ... the disease is likely to spread unless almost all ... in Nature journal, is the first to quantify how ...
Cached Biology News:Bird flu study highlights need to vaccinate flocks effectively 2
...
Mouse monoclonal antibody raised against a partial recombinant L3MBTL2. NCBI Entrez Gene ID = L3MBTL2...
Mouse monoclonal antibody raised against a partial recombinant QARS. NCBI Entrez Gene ID = QARS...
96-well format (For processing samples on microplate-size MALDI target plates such as those from Bruker, Shimadzu, Thermo, and PerkinElmer) Packaging: 2 / pack...
Biology Products: