HOME >> BIOLOGY >> NEWS
Modifications render carbon nanotubes nontoxic

HOUSTON, Oct. 26, 2005 -- In follow-on work to last year's groundbreaking toxicological study on water-soluble buckyballs, researchers at Rice University's Center for Biological and Environmental Nanotechnology (CBEN) find that water-soluble carbon nanotubes are significantly less toxic to begin with. Moreover, the research finds that nanotubes, like buckyballs, can be rendered nontoxic with minor chemical modifications.

The findings come from the first toxicological studies of water-soluble carbon nanotubes. The study, which is available online, will be published in an upcoming issue of the journal Toxicology Letters.

The research is a continuation of CBEN's pioneering efforts to both identify and mitigate potential nanotechnology risks.

"Carbon nanotubes are high-profile nanoparticles that are under consideration for dozens of applications in materials science, electronics and medical imaging," said CBEN Director Vicki Colvin, the lead researcher on the project. "For medical applications, it is reassuring to see that the cytotoxicity of nanotubes is low and can be further reduced with simple chemical changes."

Research has been conducted on the toxicity of carbon nanotubes, but CBEN's is the first to examine the cytotoxicity of water-soluble forms of the hollow carbon molecules. In their native state, carbon nanotubes are insoluble, meaning they are incompatible with the water-based environment of living systems. Solubility is a key issue for medical applications, and researchers at Rice and elsewhere have developed processing methods that render nanotubes soluble. In particular, scientists are keen to exploit the fluorescent properties of carbon nanotubes for medical diagnostics.

Nanotubes are long, hollow molecules of pure carbon with walls just one atom thick. They are related to buckyballs, tiny spheres of pure carbon that are about the same diameter.

In previous studies with buckyballs, CBEN found that even mino
'"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
26-Oct-2005


Page: 1 2 3

Related biology news :

1. Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
2. Nature surrenders flowery secrets to international team
3. Dominant meerkats render rivals infertile
4. New study warns limited carbon market puts 20 percent of tropical forest at risk
5. Experiment suggests limitations to carbon dioxide tree banking
6. Decoding mushrooms secrets could combat carbon, find better biofuels and safer soils
7. Scientists close in on missing carbon sink
8. Human activities increasing carbon sequestration in forests
9. Researchers examine carbon capture and storage to combat global warming
10. Soils offer new hope as carbon sink
11. Before selling carbon credits, read this

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/23/2017)... GENOA, Italy , May 23, 2017  Hunova, the first robotic ... and trunk, has been officially launched in Genoa, Italy ... Europe and the USA . The ... launched on the market by the IIT spin-off Movendo Technology thanks to ... view the Multimedia News Release, please click: ...
(Date:5/6/2017)... May 5, 2017 RAM Group ... a new breakthrough in biometric authentication based on ... mechanical properties to perform biometric authentication. These new sensors ... material created by Ram Group and its partners. This ... transportation, supply chains and security. Ram Group is ...
(Date:4/18/2017)... -- Socionext Inc., a global expert in SoC-based imaging and computing solutions, ... which features the company,s hybrid codec technology. A demonstration utilizing TeraFaces ... will be showcased during the upcoming Medtec Japan at Tokyo Big ... Las Vegas Convention Center April 24-27. ... Click here for an image of ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... a leading provider of patient support solutions, has announced the ... which will launch this week. The VMS CNEs will address ... enhance the patient care experience by delivering peer-to-peer education programs ... to help women who have been diagnosed and are being ... ...
(Date:10/11/2017)... ... October 11, 2017 , ... Singh Biotechnology today announced that ... SBT-100, its novel anti-STAT3 (Signal Transducer and Activator of Transcription 3) B VHH13 ... cross the cell membrane and bind intracellular STAT3 and inhibit its function. Dysregulation ...
(Date:10/10/2017)... California (PRWEB) , ... October 10, 2017 , ... Dr. ... speaking at his local San Diego Rotary Club. The event entitled ... Diego, CA and had 300+ attendees. Dr. Harman, DVM, MPVM was joined by ...
(Date:10/10/2017)... ... 2017 , ... The Pittcon Program Committee is pleased to ... who have made outstanding contributions to analytical chemistry and applied spectroscopy. Each award ... conference and exposition for laboratory science, which will be held February 26-March 1, ...
Breaking Biology Technology:
Cached News: