Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International

Wikipedia Affiliate Button

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

'Nanoemulsion' gels offer new way to deliver drugs through the skin: Novel materials made with FDA-approved components could deliver large payloads of active ingredients June 21st, 2019

Next-gen solar cells spin in new direction: Phosphorene shows efficiency promise June 21st, 2019

Researchers report new understanding of thermoelectric materials: Discovery leads to promising new materials for converting waste heat to power June 21st, 2019

Millions with neurological diseases could find new option in implantable neurostimulation devices June 21st, 2019

Nanotubes/Buckyballs/Fullerenes/Nanorods

Making graphene-based desalination membranes less prone to defects, better at separating June 13th, 2019

Shaking hands with human or robot? Nanotubes make them alike as never before June 6th, 2019

Generating high-quality single photons for quantum computing: New dual-cavity design emits more single photons that can carry quantum information at room temperature May 17th, 2019

Self-powered wearable tech May 8th, 2019

Announcements

Arrowhead Pharmaceuticals Reports Inducement Grants under NASDAQ Marketplace Rule 5635(c)(4) June 22nd, 2019

Ice lithography: opportunities and challenges in 3D nanofabrication June 21st, 2019

Researchers report new understanding of thermoelectric materials: Discovery leads to promising new materials for converting waste heat to power June 21st, 2019

Millions with neurological diseases could find new option in implantable neurostimulation devices June 21st, 2019

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project