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:12/8/2016)...  The Board of Directors of the Pittsburgh ... only pure life sciences investment firm, today ... succession plan developed by the Nominating and Governance Committee ... (Jim) F. Jordan is selected to serve as ... Manzetti , who is elected to the position of ...
(Date:12/8/2016)... AskLinkerReports.com has published a report on Amyloglucosidase Market ... Market Research Report. From a basic outline of the Amyloglucosidase ... covered in the report. This report projects investment feasibility analysis, ... Amyloglucosidase industry. ... , Complete report on ...
(Date:12/8/2016)... ... December 08, 2016 , ... Opal Kelly, ... essential device-to-computer interconnect using USB or PCI Express, announced the FOMD-ACV-A4, the company's ... is a small, thin, SODIMM-style module that fits a standard 204-pin SODIMM socket ...
(Date:12/8/2016)... (PRWEB) , ... December 08, ... ... announces the commercial launch of flexible packaging for their exceptionally efficient human ... bag system extends RoosterBio’s portfolio of bioprocess media products engineered to radically ...
Breaking Biology Technology:
(Date:12/6/2016)... Dec. 6, 2016 Valencell , the leading ... has seen a third consecutive year of triple digit ... in 2016 with a 360 percent increase in companies ... increase was driven by sales of its wrist and ... in its technology for hearables for fitness and healthcare ...
(Date:12/2/2016)... AUSTIN, Texas , Dec. 1, 2016 /PRNewswire/ ... provider, today announced BioLock , an electrocardiogram ... and health monitoring, a key IoT asset. The ... embedded into a vehicle,s steering wheel and mobile ... a simple touch. As vehicle technology ...
(Date:11/29/2016)... , Nov. 29, 2016   ... identification and object recognition technologies, today released ... for fingerprint recognition solutions that run on ... fingerprint template using less than 128KB of ... compact devices that have limited on-board resources, ...
Breaking Biology News(10 mins):