Featured Research

from universities, journals, and other organizations

Slippery When Wet: Fluids Race Through Nearly Frictionless Carbon Nanotubes

Date:
November 17, 2005
Source:
National Science Foundation
Summary:
Within the cells of our bodies, fluids flow rapidly through miniscule, nearly frictionless, protein channels. Until now, human-made nanoscale structures have not been able to mimic those same speeds because the fluids flow slowly along the walls of the tiny structures. Researchers have now found that carbon nanotubes only 7 billionths of a meter in diameter can channel many fluids nearly friction free.

In this illustration, water travels through carbon nanotubes at a rate 10,000 to 100,000 times faster than models predict.
Credit: M. Denomme, University of Kentucky

Within the cells of our bodies, fluids flow rapidly through miniscule, nearly frictionless, protein channels. Until now, human-made nanoscale structures have not been able to mimic those same speeds because the fluids flow slowly along the walls of the tiny structures.

Related Articles


Researchers have now found that carbon nanotubes only 7 billionths of a meter in diameter can channel many fluids nearly friction free. With some fluids, the interiors of the tubes were so slippery that substances sailed through 10,000-100,000 times faster than models had predicted.

For the experiments, chemical and materials engineers Bruce Hinds, a National Science Foundation CAREER awardee, Mainak Majumder, Nitin Chopra and Rodney Andrews of the University of Kentucky fabricated membranes made from billions of aligned carbon nanotubes. The fabrication techniques easily adapt to large-scale production, which is important for industries that could use such membranes for separating commodity chemicals.

Hinds and his colleagues crafted the membranes so that each side can have different chemical properties. As a result, the selective membrane could one day be used to deliver drugs through the skin or in specialized chemical sensors.

The findings appeared in the Oct. 3, 2005, issue of the journal Nature.


Story Source:

The above story is based on materials provided by National Science Foundation. Note: Materials may be edited for content and length.


Cite This Page:

National Science Foundation. "Slippery When Wet: Fluids Race Through Nearly Frictionless Carbon Nanotubes." ScienceDaily. ScienceDaily, 17 November 2005. <www.sciencedaily.com/releases/2005/11/051117114309.htm>.
National Science Foundation. (2005, November 17). Slippery When Wet: Fluids Race Through Nearly Frictionless Carbon Nanotubes. ScienceDaily. Retrieved March 2, 2015 from www.sciencedaily.com/releases/2005/11/051117114309.htm
National Science Foundation. "Slippery When Wet: Fluids Race Through Nearly Frictionless Carbon Nanotubes." ScienceDaily. www.sciencedaily.com/releases/2005/11/051117114309.htm (accessed March 2, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Monday, March 2, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

HTC And Valve Team Up For Virtual Reality Headset

HTC And Valve Team Up For Virtual Reality Headset

Newsy (Mar. 1, 2015) HTC unveiled Vive, its new virtual reality headset, Sunday. The device is supported by gaming company Valve, which has made a push into the market. Video provided by Newsy
Powered by NewsLook.com
Rehab Robot Helps Restore Damaged Muscles and Nerves

Rehab Robot Helps Restore Damaged Muscles and Nerves

Reuters - Innovations Video Online (Mar. 1, 2015) A rehabilitation robot prototype to help restore deteriorated nerves and muscles using electromyography and computer games. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
Elon Musk's Hyperloop Moves Forward

Elon Musk's Hyperloop Moves Forward

Buzz60 (Feb. 27, 2015) Zipping around at 800-miles an hour is coming closer to reality in California. An entire town is being built around Elon Musk&apos;s Hyperloop concept and it wants you to stop in for a ride when it&apos;s ready. Brett Larson is on board. Video provided by Buzz60
Powered by NewsLook.com
Vibrating Bicycle Senses Traffic

Vibrating Bicycle Senses Traffic

Reuters - Innovations Video Online (Feb. 26, 2015) Dutch scientists have developed a smart bicycle that uses sensors, wireless technology and video to warn riders of traffic dangers. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins