Featured Research

from universities, journals, and other organizations

Researchers Grow Their Longest Carbon Nanotube Ever

Date:
November 29, 2006
Source:
University Of Cincinnati
Summary:
A nanospace race has raged to successfully grow a nanotube array suitable for many uses. And now a UC research team, in conjunction with First Nano, is ahead -- by a thousandth of a hair.

Nanotube array and a dime for scale.
Credit: Image courtesy of University Of Cincinnati

A nanospace race has raged to successfully grow a nanotube array suitable for many uses. And today a UC research team, in conjunction with First Nano, is ahead — by a thousandth of a hair.

Nanotechnology revolves around the creation of technology — films, materials, devices, applications and systems — on a scale of 1–100 nanometers. But what is a nanometer? A nanometer is one billionth of a meter or 40 billionths of an inch. A human hair is between 50 and 100 microns wide — and a micron is 1,000 nanometers. A DNA molecule is about 2˝ nanometers wide. A typical human hair is between 50,000 and 100,000 nanometers wide. So, we could stack at least 1000 nano-devices across the end of a human hair.

The Largest of the Small

It might sound like an oxymoron, but long nanotubes are critical to manufacturers and practitioners in such fields as transportation, defense, safety and medicine. Because of their increased surface area, large nanotube arrays offer improvements in sensors. Larger nanotubes can be “spun” — or suspended in an epoxy-like substrate — and used to strengthen materials used in airplanes, for example. Like your great-grandmother’s yarn, the longer a continuous thread, the better. In conjunction with First Nano (FN), a division of CVD Equipment Corporation, UC has grown an array on FN’s EasyTube Carbon Nanotube system that is longer than 7 mm.

“The harmonious combination of substrate, alloy catalyst and process conditions was found to consistently produce nanotube arrays more than 7 mm long” says Professor Vesselin Shanov, co-director of Smart Materials Nanotechnology Laboratory at the University of Cincinnati (UC). In recognition for its commitment to nanotechnology education at both the graduate and undergraduate level, UC is ranked #2 in the United States for nanotechnology education by Small Times magazine. “First Nano and UC have collaborated in the past and are planning on future collaboration to scale up production of nanotube arrays for applications that man has only dreamed of, like a super-strong cable for a space elevator and featherweight composite materials for sporting goods, aircraft structures, armor and many more uses.”

Leonard Rosenbaum, President and Chief Executive Officer of CVD Equipment Corporation states, “We look forward to continuing our relationship with the University of Cincinnati to bring this technology from the laboratory into full-scale production.”

Synthesis of Macro Scale Carbon Nanotube Arrays

The recent breakthroughs at the University of Cincinnati and CVD Equipment Corporation (of Ronkonkoma, New York), have led to the growth of large carbon nanotube arrays. While individual carbon nanotubes are only 20 billionths of a meter in diameter, the array of carbon nanotubes grow as millimeter-long dense forests on centimeter-wide substrates. Years of research by UC’s Shanov, Schulz and students Andrew Gorton and Yun YeoHeung led to the invention of the method for growing the large nanotube arrays. Researchers  and engineers at CVD Equipment Corporation developed and built the equipment used to grow the large carbon nanotube arrays.


Story Source:

The above story is based on materials provided by University Of Cincinnati. Note: Materials may be edited for content and length.


Cite This Page:

University Of Cincinnati. "Researchers Grow Their Longest Carbon Nanotube Ever." ScienceDaily. ScienceDaily, 29 November 2006. <www.sciencedaily.com/releases/2006/11/061129092204.htm>.
University Of Cincinnati. (2006, November 29). Researchers Grow Their Longest Carbon Nanotube Ever. ScienceDaily. Retrieved April 25, 2014 from www.sciencedaily.com/releases/2006/11/061129092204.htm
University Of Cincinnati. "Researchers Grow Their Longest Carbon Nanotube Ever." ScienceDaily. www.sciencedaily.com/releases/2006/11/061129092204.htm (accessed April 25, 2014).

Share This



More Matter & Energy News

Friday, April 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Next Stop America for France's TGV?

Next Stop America for France's TGV?

Reuters - Business Video Online (Apr. 24, 2014) — General Electric keeps quiet on reports it's in talks to buy French turbine and train maker Alstom. Ivor Bennett reports on what could be an embarrassing rumour for the French government, with business-friendly reforms proving a hard sell. Video provided by Reuters
Powered by NewsLook.com
Raw: Obama Plays Soccer With Japanese Robot

Raw: Obama Plays Soccer With Japanese Robot

AP (Apr. 24, 2014) — President Obama briefly played soccer with a robot during his visit to Japan on Thursday. The President has been emphasizing technology along with security concerns during his visit. (April 24) Video provided by AP
Powered by NewsLook.com
Obama Encourages Japanese Student-Scientists

Obama Encourages Japanese Student-Scientists

AP (Apr. 24, 2014) — President Obama spoke with student innovators in Japan and urged them to take part in increased opportunities for student exchanges with the US. (April 24) Video provided by AP
Powered by NewsLook.com
UN Joint Mission Starts Removing Landmines in Cyprus

UN Joint Mission Starts Removing Landmines in Cyprus

AFP (Apr. 23, 2014) — The UN mission in Cyprus (UNFICYP) led a mine clearance demonstration on Wednesday in the UN-controlled buffer zone where demining operations are being conducted near the Cypriot village of Mammari. Duration: 01:00 Video provided by AFP
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:
from the past week

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