Navigation Links
Researchers 'nanoweld' by applying light to aligned nanorods in solid materials
Date:2/21/2013

Researchers from North Carolina State University have developed a way to melt or "weld" specific portions of polymers by embedding aligned nanoparticles within the materials. Their technique, which melts fibers along a chosen direction within a material, may lead to stronger, more resilient nanofibers and materials.

Physicists Jason Bochinski and Laura Clarke, with materials scientist Joe Tracy, placed specifically aligned gold nanorods within a solid material. Gold nanorods absorb light at different wavelengths, depending upon the size and orientation of the nanorod, and then they convert that absorbed light directly into heat. In this case, the nanorods were designed to respond to light wavelengths of 520 nanometers (nm) in a horizontal alignment and 800 nm when vertically aligned. Human beings can see light at 520 nm (it looks green), while 808 nm is in the near infrared spectrum, invisible to our eyes.

When the different wavelengths of light were applied to the material, they melted the fibers along the chosen directions, while leaving surrounding fibers largely intact.

"Being able to heat materials spatially in this way gives us the ability to manipulate very specific portions of these materials, because nanorods localize heat that is, the heat they produce only affects the nanorod and its immediate surroundings," Tracy says.

According to Bochinski, the work also has implications for optimizing materials that have already been manufactured: "We can use heat at the nanoscale to change mechanical characteristics of objects postproduction without affecting their physical properties, which means more efficiency and less waste."

The researchers' findings appear in Particle & Particle Systems Characterization. The work was funded by grants from the National Science Foundation and Sigma Xi. Graduate students Wei-Chen Wu and Somsubhra Maity and former undergraduate student Krystian Kozek contributed to the work.


'/>"/>

Contact: Tracey Peake
tracey_peake@ncsu.edu
919-515-6142
North Carolina State University
Source:Eurekalert  

Related biology technology :

1. Researchers create semiconductor nano-shish-kebabs with potential for 3-D technologies
2. Researchers invent acoustic-assisted magnetic information storage
3. INRS researchers at the Global Young Academy
4. SPIE Photonics West is Still ‘the Place to Meet’ for Researchers, Developers, and Suppliers of Ubiquitous Technology
5. Researchers create building block of quanutm networks
6. Boston College researchers unique nanostructure produces novel plasmonic halos
7. EMBL-EBI researchers make DNA storage a reality
8. Researchers create method for more sensitive electrochemical sensors
9. Sustainable Valley Technology Group Provides Technology Innovation Grant To Help Researchers & Start-Ups With Funding, Business Support, Equipment & Facilities
10. Penn researchers show new level of control over liquid crystals
11. Carin Grings remains identified by researchers at Uppsala University
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Researchers 'nanoweld' by applying light to aligned nanorods in solid materials
(Date:12/2/2016)... More than $4.3 million was raised last night ... ). The gala was held at the American Museum of ... and honored Alan Alda and P. ... medicine and the public understanding of science. Since the first ... has raised $40 million for the Laboratory,s research and education ...
(Date:12/2/2016)... ... , ... ACEA Biosciences, Inc. announced today that it will be presenting updated ... World Conference on Lung Cancer 2016, taking place in Vienna, Austria December 3rd-8th. ... for AC0010 in patients with advanced non-small cell lung cancer harboring the EGFR T790M ...
(Date:12/2/2016)... ... December 01, 2016 , ... DrugDev believes the only ... a beautiful technology experience. All three tenets were on display at the 2nd Annual ... from over 40 sponsor, CRO and site organizations to discuss innovation and the future ...
(Date:12/2/2016)... The immunohistochemistry (IHC) market is projected ... of 7.3% during the forecast period of 2016 to 2021 dominated ... accounted for the largest share of immunohistochemistry (IHC) market, by end ... , , ... market spread across 225 pages, profiling 10 companies and supported with ...
Breaking Biology Technology:
(Date:11/29/2016)... BioDirection, a privately held medical device company developing novel ... concussion and other traumatic brain injury (TBI), announced today ... the U.S. Food and Drug Administration (FDA) to review ... meeting company representatives reviewed plans for clinical development of ... a planned pilot trial. "We are ...
(Date:11/24/2016)... 2016 Cercacor today introduced Ember TM ... non-invasively measure hemoglobin, Oxygen Content, Oxygen Saturation, ... Rate in approximately 30 seconds. Smaller than a smartphone, ... access to key data about their bodies to help ... Hemoglobin carries oxygen to muscles. When ...
(Date:11/19/2016)... Securus Technologies, a leading provider of civil ... corrections and monitoring, announced today that it has offered ... an independent technology judge determine who has the largest ... telephone calling platform, and the best customer service. ... of what we do – which clearly is not ...
Breaking Biology News(10 mins):