Navigation Links
Clemson scientists put a (nano) spring in their step
Date:8/13/2008

CLEMSON Electronic devices get smaller and more complex every year. It turns out that fragility is the price for miniaturization, especially when it comes to small devices, such as cell phones, hitting the floor. Wouldn't it be great if they bounced instead of cracked when dropped?

A team of Clemson University researchers, led by Apparao Rao, professor of physics, has invented a way to make beds of tiny, shock-absorbing carbon springs which possibly could be used to protect delicate objects from damaging impacts. With collaborators at the University of California at San Diego, the team has shown that layers of these tiny springs called coiled carbon nanotubes, each a thousand times smaller than a human hair, can act as extremely resilient shock absorbers.

Similar coiled carbon nanotubes have been made before, yet Clemson researchers say this method is unique since beds of coiled carbon nanotubes can be grown in a single step using a proprietary hydrocarbon-catalyst mixture.

The group also envisions coiled nanotubes in soldiers' body armor, car bumpers and bushings and even as cushioning elements in shoe soles.

"The problem we have faced in the past is producing enough of these coiled carbon nanotubes at a reasonable cost to make a difference," said Rao. "Because our current method produces coiled nanotubes quickly in high yield, it can be readily scaled up to industrial levels. After formation, the coiled nanotubes can be peeled off in one piece and placed on other surfaces to form instant cushioning coatings."

In earlier studies, Rao and his team, along with UCSD collaborators, tested more conventional straight carbon nanotubes against coil-shaped nanotubes. When a stainless steel ball was dropped onto a single nanotube layer, the coiled nanotubes completely recovered from the impact, while the straight ones did not.

"It's like an egg toss," said Rao. "If you move your hand backward as you catch the egg and increase the time of contact over which the impact occurs, the impact will be less forceful and the egg will not break. It is the same phenomenon experienced in catching a baseball."

In previous work, Rao's group developed a process that coaxes a traditionally straight carbon nanotube to split into a "Y" shape. When powered by electrical voltages, the Y-branched nanotubes behave like tiny switches or transistors that process information.

"Our studies with carbon nanotubes have been ongoing for quite some time," said Rao. "Each step along the way has led to the next breakthrough, and each time we've learned more about how they grow and what their applications could be. We believe that carbon nanotubes have tremendous potential for the lives of each one of us."


'/>"/>

Contact: Apparao Rao
arao@clemson.edu
864-656-6758
Clemson University
Source:Eurekalert

Related biology technology :

1. Clemson researcher studies carbon fibers for nuclear reactor safety
2. Penn scientists carve functional nanoribbons using super-heated, nano-sized particles of iron
3. Penn scientists demonstrate potential of graphene films as next-generation transistors
4. Scientists demonstrate highly directional semiconductor lasers
5. Conference to Turn Scientists of Color into PA-Based Entrepreneurs Set for November
6. Project Mind Survey of Israeli Ph.D. Scientists Favors a New Standard of Creativity in Science
7. Virtual world is sign of future for scientists, engineers
8. Scientists fix bugs in our understanding of evolution
9. Ten Latin American Scientists Named 2008 Pew Fellows in the Biomedical Sciences
10. Israeli Scientists Recipients of 2008 International Adult Stem Cell Award
11. Weizmann Institute scientists create new nanotube structures
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/19/2017)... , April 19, 2017 A new report published by ... Forecast, 2014-2022 ," the global market was valued at $6,769 million in 2015, ... 9.6% from 2016 to 2022. ... Allied Market Research Logo ...      (Logo: http://photos.prnewswire.com/prnh/20140911/647229) The ...
(Date:4/19/2017)... WESTMINSTER, Colo. , April 19, ... industry-leading specialty finance firm that provides senior debt ... announced the closing of a $20 million senior ... privately-held orthobiologics company engaged in the development and ... treatment of orthopedic injuries. Cerapedics, lead ...
(Date:4/19/2017)... , April 19, 2017   Thermo Fisher ... the multi-center Procalcitonin MOnitoring SEpsis (MOSES) Study have ... of Critical Care Medicine . Researchers from ... Severe Sepsis Patients: Results From the Multicenter Procalcitonin ... the B·R·A·H·M·S PCT (procalcitonin) assay to assess risk ...
(Date:4/18/2017)... Jordan, Utah (PRWEB) , ... April 18, 2017 ... ... and collaboration company, has been awarded Channel Partners 2017 Next-Gen Solution Provider. , ... create business value for customers with their vision, innovation, and advocacy of the ...
Breaking Biology Technology:
(Date:4/17/2017)... April 17, 2017 NXT-ID, Inc. (NASDAQ: ... the filing of its 2016 Annual Report on Form 10-K on ... ... is available in the Investor Relations section of the Company,s website ... SEC,s website at http://www.sec.gov . 2016 Year Highlights: ...
(Date:4/11/2017)... Research and Markets has announced the addition of the ... ... grow at a CAGR of 30.37% during the period 2017-2021. ... prepared based on an in-depth market analysis with inputs from industry ... over the coming years. The report also includes a discussion of ...
(Date:4/5/2017)... 5, 2017  The Allen Institute for Cell Science ... a one-of-a-kind portal and dynamic digital window into the ... the first application of deep learning to create predictive ... lines and a growing suite of powerful tools. The ... and future publicly available resources created and shared by ...
Breaking Biology News(10 mins):