Campus News
Published: 16 November, 2012

Small muscles to have big impact on smart clothing

Australian scientists are among a team to develop a new artificial muscle with exciting possibilities for use in self-powered intelligent textiles that could automatically react to environmental conditions like heat or sweat.

Researchers at the ARC Centre of Excellence for Electromaterials Science (ACES) at the University of Wollongong are part of a team spread across four continents, to develop the new hybrid yarn muscle.

The hybrid yarn muscles are based on carbon nanotubes which are hollow cylinders just one carbon atom thick like the layers of graphite. On their own, carbon nanotubes are about 10,000 times smaller than the diameter of a human hair but they can be 100 times stronger than steel.

Researchers combine the nanotubes with a wax material like household candles, the result being a single thread of yarn around 10 times smaller than the diameter of a human hair, that can lift over 100,000 times its own weight and generate 85 times higher mechanical output that natural skeletal muscles.

“When heated, either electrically or with a flash of light, the wax in the yarn muscles expands, causing contraction of the nanotube yarn and generating a very large contraction,” according to ACES researcher Professor Geoff Spinks.

Unlike other artificial muscles, the hybrid yarn muscles are fully dry so actuation can be triggered from changes in environmental temperature or the presence of chemical agents, making them perfect for use as self-powered intelligent materials.

Using the advanced customised technology of the Australian National Fabrication Facility that is housed at ACES’ Wollongong NSW node, scientists can move to the next exciting step of weaving, sewing, braiding and knitting the hybrid yarn muscles.

“The yarns could be used to create intelligent fabrics that can open and close the porosity of the fabric to allow heat in or keep it out, or release moisture,” ACES researcher and fabrication expert Dr Javad Foroughi said, who has also just been awarded a three-year fellowship from the Australian Research Council to develop intelligent fabrics.

Other applications for the yarns could include robots, catheters, micro-motors, tuneable optical systems and even toys.

The research is published today (Friday 16 November) in Science.

Published: 16 November, 2012

Contact us

+61 2 4221 4227 | media@uow.edu.au 

Share

UOW IN THE NEWS

NRL star Trent Merrin study...
Daily Telegraph | 24 May
Adding the fourth dimension...
Extreme Tech | 24 May
Motorists may have to pay...
Sydney Morning Herald | 22 May
Excess seagrass wrack on...
ABC Local | 20 May
UOW's Early Start Discovery ...
Illawarra Mercury | 19 May
UOW children's museum: a di...
Illawarra Mercury | 15 May
New deal for start-ups a winner
The Australian | 15 May
UOW's Understanding Our P...
Illawarra Mercury | 14 May
Why the world is wary of China's...
CNN | 14 May
The Apple Watch heralds a bra...
The Conversation | 14 May
Federal budget 2015: ABC pour...
The Age | 13 May
Lifeline South Coast receives ...
Illawarra Mercury | 13 May
El Nino: summer is coming
Sydney Morning Herald | 8 May
Why the world is wary of China’...
The Conversation | 8 May
From Balinese nomad to Wo...
ABC Illawarra | 7 May
Teensafe spy app forces parent...
The Age | 6 May
Christian Schools Australia CE...
Daily Life | 6 May
Chief scientist opens new UOW...
ABC Illawarra | 6 May
Why a decade of violence has...
Herald Sun | 6 May 
Why are young Australian un...
The Conversation | 5 May
More media coverage