Featured Research

from universities, journals, and other organizations

Researchers Grow Bone Cells On Carbon Nanotubes

Date:
March 17, 2006
Source:
University of California - Riverside
Summary:
Researchers at the University of California, Riverside have published findings that show, for the first time, that bone cells can grow and proliferate on a scaffold of carbon nanotubes.

Bone cells appear as a clump at left, carbon nanotubes appear on the right.
Credit: Image courtesy of University of California - Riverside

Researchers at the University of California, Riverside have published findings that show, for the first time, that bone cells can grow and proliferate on a scaffold of carbon nanotubes.

The paper, titled Bone Cell Proliferation on Carbon Nanotubes, appears in the March 8 edition of Nano Letters, a journal of the American Chemical Society. Lead author, Laura Zanello, is an assistant professor of biochemistry at UCR and was joined by UCR colleagues, graduate students Bin Zhao and Hui Hu, and Robert C. Haddon, distinguished professor of chemistry and of chemical and environmental engineering.

Zanello’s paper builds on previous research by Haddon which showed that carbon nanotubes could be chemically compatible with bone cells.

Zanello’s experiment put Haddon’s findings to the test and found that the nanotubes, 100,000 times finer than a human hair, are an excellent scaffold for bone cells to grow on.

“In the past scientists have been plagued by toxicity issues when combining carbon nanotubes with living cells,” Zanello said. “So we have been looking for the most pure nanotubes we could get to reduce the presence of heavy metals that are frequently introduced in the manufacturing process.”

She credited Haddon’s graduate student Zhao, now a postgraduate researcher at the Oak Ridge National Laboratory, with manufacturing highly pure nanotubes for her to work with.

Some of the carbon nanotubes were chemically treated and others were not, then they were combined with rat bone cells to determine which combination or combinations worked best. Non-treated and electrically-neutral nanotubes emerged as the best scaffolds for bone growth.

Because carbon nanotubes are not biodegradable, they behave like an inert matrix on which cells can proliferate and deposit new living material, which becomes functional, normal bone, according to the paper. They therefore hold promise in the treatment of bone defects in humans associated with the removal of tumors, trauma, and abnormal bone development and in dental implants, Zanello added.

More research is needed to determine how the body will interact with carbon nanotubes, specifically in its immune response, the paper states.

“We hope to look at the atomic interactions between living matter and synthetic scaffolds so we can come up with material that can interact at the nanolevel with living cells,” Zanello said.


Story Source:

The above story is based on materials provided by University of California - Riverside. Note: Materials may be edited for content and length.


Cite This Page:

University of California - Riverside. "Researchers Grow Bone Cells On Carbon Nanotubes." ScienceDaily. ScienceDaily, 17 March 2006. <www.sciencedaily.com/releases/2006/03/060316092452.htm>.
University of California - Riverside. (2006, March 17). Researchers Grow Bone Cells On Carbon Nanotubes. ScienceDaily. Retrieved September 16, 2014 from www.sciencedaily.com/releases/2006/03/060316092452.htm
University of California - Riverside. "Researchers Grow Bone Cells On Carbon Nanotubes." ScienceDaily. www.sciencedaily.com/releases/2006/03/060316092452.htm (accessed September 16, 2014).

Share This



More Matter & Energy News

Tuesday, September 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Manufacturer Prints 3-D Car In Record Time

Manufacturer Prints 3-D Car In Record Time

Newsy (Sep. 15, 2014) — Automobile manufacturer Local Motors created a drivable electric car using a 3-D printer. Printing the body only took 44 hours. Video provided by Newsy
Powered by NewsLook.com
Refurbished New York Subway Tunnel Unveiled After Sandy Damage

Refurbished New York Subway Tunnel Unveiled After Sandy Damage

Reuters - US Online Video (Sep. 15, 2014) — New York officials unveil subway tunnels that were refurbished after Superstorm Sandy. Nathan Frandino reports. Video provided by Reuters
Powered by NewsLook.com
Frustration As Drone Industry Outpaces Regulation In U.S.

Frustration As Drone Industry Outpaces Regulation In U.S.

Newsy (Sep. 14, 2014) — U.S. firms worry they’re falling behind in the marketplace as the FAA considers how to regulate commercial drones. Video provided by Newsy
Powered by NewsLook.com
Smart Gun Innovators Fear Backlash From Gun Rights Advocates

Smart Gun Innovators Fear Backlash From Gun Rights Advocates

Newsy (Sep. 14, 2014) — Winners of a contest for smart gun design are asking not to be named after others in the industry received threats for marketing similar products. Video provided by Newsy
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