Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > US nanotechnologists make it to the Guinness Book of World Records

US nanotechnologists make it to the Guinness Book of World Records

Posted on April 04, 2006

The smallest nanotube brushes with bristles more than thousand times finer than a human hair have been created by researchers of Rensselaer Polytechnic Institute of Troy (Dr. Pulickel M. Ajayan), NY, and the University of Hawaii at Manoa (Mr. Vinod P. Veedu, Dr. Anyuan Cao and Dr. Mehrdad N. Ghasemi-Nejhad), Honolulu, Hawaii.

Nanotube Brush
Nanotube Brush

Acknowledgments: Dr. Pulickel M. Ajayan, Mr. Vinod P. Veedu, Dr. Anyuan Cao, and Dr. Mehrdad N. Ghasemi-Nejhad

These brushes can be used for sweeping up nano-dust, as electronic micro-switches, painting micro capillaries and even cleaning up pollutants in water. The bristles' secret is carbon nanotubes, tiny straw-like molecules just 30 billionths of a meter (30 nm) across. They are incredibly tough and yet flexible enough that they will yield when pushed from the side. The scientists grow bristles from hot, carbon-laden gas on to threads of silicon carbide finer than baby's hair. The researchers show how the brushes can sweep up piles of nano-dust. They have also shown that the brushes can be used to paint microstructures - dipped into a solution of iron oxide (rust), the minute brush hairs will pick up the red oxide particles which can then be wiped on to a bare surface. With the bristles coated in absorbent materials, the brushes will soak up toxic silver ions from contaminated water. Because of their strength, resistance to abrasion, and pliability, the nanobrushes may prove superior to macroscopic metal brushes in high-power motors. Conventional brush bristles, made of animal hairs, synthetic polymer fibers, and metal wires, are flimsy and prone to breaking down at the nano-scale. To work at the nano-scale, researchers realized that a different kind of material was needed. The small size, strength, elasticity, and ability to conduct electricity make carbon nanotubes as ideal bristle material at the nano-scale.

Nanotube Brush Holds Guiness World Record
Acknowledgment: Guiness World Records, Ltd.

Click on image for larger version.

This work was a collaborative research conducted by the University of Hawaii (UH) at Manoa in Honolulu, Hawaii and Rensselaer Polytechnic Institute (RPI) in Troy, New York. The UH research team was lead by Prof. Mehrdad Ghasemi-Nejhad who also directs the Hawaii Nanotechnology Laboratory (HNL). Dr. Anyuan Cao is the associate director of HNL. Vinod Veedu is a PhD student at the UH department of mechanical engineering and conducts research at HNL. The RPI team was lead by Dr. Pulickel Ajayan, the Henry Burlage Professor of Materials Science and Engineering. Dr. Ajayan is a world-renowned expert in nanotechnology. Their work was reported in the journal Nature Materials in July 2005.

####


If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

Possible Futures

Imaging electric charge propagating along microbial nanowires October 20th, 2014

Superconducting circuits, simplified: New circuit design could unlock the power of experimental superconducting computer chips October 18th, 2014

Nanocoatings Market By Product Is Expected To Reach USD 8.17 Billion By 2020: Grand View Research, Inc. October 15th, 2014

Perpetuus Carbon Group Receives Independent Verification of its Production Capacity for Graphenes at 140 Tonnes per Annum: Perpetuus Becomes the First Manufacturer in the Sector to Allow Third Party Audit October 7th, 2014

Nanotubes/Buckyballs

Tiny carbon nanotube pores make big impact October 29th, 2014

Materials for the next generation of electronics and photovoltaics: MacArthur Fellow develops new uses for carbon nanotubes October 21st, 2014

Special UO microscope captures defects in nanotubes: University of Oregon chemists provide a detailed view of traps that disrupt energy flow, possibly pointing toward improved charge-carrying devices October 21st, 2014

Imaging electric charge propagating along microbial nanowires October 20th, 2014

Announcements

Nano Ruffles in Brain Matter: Freiburg researchers decipher the role of nanostructures around brain cells in central nervous system function October 31st, 2014

Gold nanoparticle chains confine light to the nanoscale October 31st, 2014

'Nanomotor lithography' answers call for affordable, simpler device manufacturing October 31st, 2014

Device invented at Johns Hopkins provides up-close look at cancer on the move: Microscopic view of metastasis could give insight about how to keep cancer in check October 31st, 2014

NanoNews-Digest
The latest news from around the world, FREE





  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE