Scientists Develop Ingenious Method for Nanotube Alignment
January 25, 2008 10:46 AM
comment(s) - last by
South Korean scientists pioneer a method for carbon nanotube alignment that may make mass production feasible.
We've seen them before -- the popular carbon nanotube (CNT) is plowing its way through the scientific community as everything from a possible delivery device for
cancer and other diseases treatments
to keeping the dream of
FED televisions alive
. They can also be quite useful as active elements in electronics of all sorts. Unfortunately they are wiley little molecules and very difficult to align easily for uses which require mass production. Kahp Suh of Seoul National University in South Korea and his team of scientists may just change that.
Suh's team's method is ingeniously simple. By passing an aqueous solution containing CNTs over a special material containing microscopic channels, they are able to create a highly oriented and dense array of nanotubes. The difficult part, Suh explains, was in finding just the right material to craft the channels from. "The stiffness of the polymer has to be just right. It has to be rigid enough to keep the nanochannels from collapsing but flexible enough to bond well with the substrate over a large area."
The material the group found to be the best match for their approach to creating the nanochannel layer is known as polyethylene glycol diacrylate. The polymer is both hydrophilic, which helps the nanotube solution to enter and flow within the channels more easily, and negatively charged which helps secure it to the channel bed's substrate.
Though CNTs are gaining wide renown in many areas of science, we seem to hear little of what they could possibly do in micro scale electronics and devices as parts of the structure. By using Suh's technique for creating nanotube arrays, engineers and manufacturers may be able to step up production of CNT-centric electronics, enabling a whole new plethora of portable and stationary electronics utilizing the unique properties of CNTs.
This article is over a month old, voting and posting comments is disabled
RE: How is this different
1/25/2008 5:22:47 PM
I KNEW IT! Thank you for finding the article.
RE: How is this different
1/25/2008 5:30:47 PM
Discussed even earlier in 2001 at the following meeting of the American Physical Society.
The "organic reagent" mentioned in "E20.003" is PEG.
"You can bet that Sony built a long-term business plan about being successful in Japan and that business plan is crumbling." -- Peter Moore, 24 hours before his Microsoft resignation
Research on Carbon Nanotubes Brings FED-TVs Closer
November 23, 2007, 1:24 PM
Remote Control Cancer Killers
November 20, 2007, 9:12 AM
Creationists are Mad About Google Doodle Depicting Evolution
November 24, 2015, 8:48 PM
DHS and TSA: Whoops, We Missed That 73 Airport Employees May be Terrorists
November 19, 2015, 2:16 PM
Star Wars Spinoff Film "Rogue One", Theme Park Attractions Announced
August 17, 2015, 12:20 PM
SpaceX Falcon 9's Seventh Supply Mission to ISS Ends w/ Fiery Stage 1 Explosion
June 28, 2015, 1:10 PM
Cool Science Video: Glowing Millipede Prowls the Nevada Desert
May 18, 2015, 12:00 PM
Newly Discovered Costa Rican Glass Frog is Kermit's Doppelgänger
April 22, 2015, 11:26 AM
Latest Blog Posts
Sceptre Airs 27", 120 Hz. 1080p Monitor/HDTV w/ 5 ms Response Time for $220
Dec 3, 2014, 10:32 PM
Costco Gives Employees Thanksgiving Off; Wal-Mart Leads "Black Thursday" Charge
Oct 29, 2014, 9:57 PM
"Bear Selfies" Fad Could Turn Deadly, Warn Nevada Wildlife Officials
Oct 28, 2014, 12:00 PM
The Surface Mini That Was Never Released Gets "Hands On" Treatment
Sep 26, 2014, 8:22 AM
ISIS Imposes Ban on Teaching Evolution in Iraq
Sep 17, 2014, 5:22 PM
More Blog Posts
Copyright 2016 DailyTech LLC. -
Terms, Conditions & Privacy Information