Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > News > Nanotubes vs. Nanoribbons

March 14th, 2010

Nanotubes vs. Nanoribbons

Abstract:
Right now, there's no single device that meets U.S. defense and homeland security officials' desire for a hand-held sensor that can detect chemical, biological and nuclear materials without giving excessive false alarms or busting budgets.

But teams of American researchers are looking into ways to build multipurpose sensors based on new forms of carbon molecules. In the drive to build so-called chem-bio-rad nanosensors, nanotubes - carbon molecules coaxed to assemble into long tubes - are competing against flattened nanoribbons.

The research is being led by a joint effort of NASA and the Pentagon's Defense Threat Reduction Agency (DTRA)'s Technology Innovation Office.

Meyya Meyyappan, chief scientist for exploration technology at NASA's Ames Research Center in California, is building a postage-stamp-sized sensor chip based on nanotubes.

Because other sensors can detect parts per billion, Meyyappan spends a lot of time making the case for nanotubes. He notes that nanotube sensors require much less power than conventional technology, which means smaller batteries. They are also generally smaller than similar lab instruments.

"One advantage we have is that this is not a laboratory instrument. A lot of other sensors for nerve gas are bulky instruments, whereas ours will be a postage-stamp-sized chip with low power consumption," he said.

"Don't let anyone tell you nanotubes are expensive," he said. "Each sensor uses a nanogram of nanotubes. So, if you buy one gram, you can make a gazillion sensors. The price [of sensors] is not determined by nanotube cost."

Source:
defensenews.com

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Penn Study: Understanding Graphene’s Electrical Properties on an Atomic Level July 22nd, 2014

NUS scientists use low cost technique to improve properties and functions of nanomaterials: By 'drawing' micropatterns on nanomaterials using a focused laser beam, scientists could modify properties of nanomaterials for effective applications in photonic and optoelectric applicat July 22nd, 2014

Haydale and Goodfellow Announce Major Distribution Agreement for Functionalised Graphene Materials July 21st, 2014

Relaunch of the Nanoscribe Website New design, optimized research, and impressive gallery of applications July 21st, 2014

Govt.-Legislation/Regulation/Funding/Policy

Penn Study: Understanding Graphene’s Electrical Properties on an Atomic Level July 22nd, 2014

Oregon chemists eye improved thin films with metal substitution: Solution-based inorganic process could drive more efficient electronics and solar devices July 21st, 2014

More than glitter: Scientists explain how gold nanoparticles easily penetrate cells, making them useful for delivering drugs July 21st, 2014

Carbyne morphs when stretched: Rice University calculations show carbon-atom chain would go metal to semiconductor July 21st, 2014

Possible Futures

IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future July 10th, 2014

Virus structure inspires novel understanding of onion-like carbon nanoparticles April 10th, 2014

Local girl does good March 22nd, 2014

Surface Characteristics Influence Cellular Growth on Semiconductor Material March 12th, 2014

Nanotubes/Buckyballs

University of Houston researchers create new method to draw molecules from live cells: Technique using magnetic nanomaterials offers promise for diagnosis, gene therapy July 17th, 2014

3-D nanostructure could benefit nanoelectronics, gas storage: Rice U. researchers predict functional advantages of 3-D boron nitride July 15th, 2014

Researchers discover boron 'buckyball' July 14th, 2014

IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future July 10th, 2014

Sensors

Tiny laser sensor heightens bomb detection sensitivity July 19th, 2014

Iranian Scientists Use Nanosensors to Achieve Best Limit for Early Cancer Diagnosis July 19th, 2014

Rice nanophotonics experts create powerful molecular sensor: Sensor amplifies optical signature of single molecules about 100 billion times July 15th, 2014

University of Illinois researchers demonstrate novel, tunable nanoantennas July 14th, 2014

Homeland Security

Tiny laser sensor heightens bomb detection sensitivity July 19th, 2014

Nanotubes boost terahertz detectors: Rice-led project may dramatically improve medical imaging, passenger screening, food inspection June 11th, 2014

Nanotube coating helps shrink mass spectrometers March 25th, 2014

Bionic plants: Nanotechnology could turn shrubbery into supercharged energy March 16th, 2014

Military

Carbyne morphs when stretched: Rice University calculations show carbon-atom chain would go metal to semiconductor July 21st, 2014

Tiny laser sensor heightens bomb detection sensitivity July 19th, 2014

Future Electronics May Depend on Lasers, Not Quartz July 17th, 2014

Rice nanophotonics experts create powerful molecular sensor: Sensor amplifies optical signature of single molecules about 100 billion times July 15th, 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