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:3/7/2017)... , March 7, 2017 Brandwatch , the leading ... The Prince,s Trust to uncover insights to support its ... Trust. The UK,s leading youth charity will be using ... results and get a better understanding of the topics and issues ... ...
(Date:3/6/2017)... Calif. , March 6, 2017 ... and sales technology, today announced Predictive Sales Coach ... for infusing actionable sales intelligence into Salesforce. This ... automatically enable their sales organizations with deep knowledge ... that allow for intelligent engagement. Predictive Sales Coach ...
(Date:3/2/2017)... , March 2, 2017 Summary ... to better understand Merck KGaA and its partnering interests ... https://www.reportbuyer.com/product/3605601/ Description The Partnering Deals and ... the partnering activity of one of the world,s leading ... are prepared upon purchase to ensure inclusion of the ...
Breaking Biology News(10 mins):
(Date:3/22/2017)... Calif. (PRWEB) , ... March 21, 2017 , ... ... on Kickstarter , more than tripling its goal and raising over $30,000 in ... vertical garden that grows nutritious veggies & herbs fast, easy, and affordably, anywhere. ...
(Date:3/22/2017)... ... March 21, 2017 , ... ... its innovative Quantum peristaltic pump with patented ReNu single-use (SU) cartridge technology. ... standard for high-pressure feed pumps in SU tangential flow filtration (TFF), virus ...
(Date:3/22/2017)... ... ... The Society for Immunotherapy of Cancer (SITC) strongly opposes the proposed budget ... year 2018 budget request. , This proposal calls for a reduction ... 20% of its total budget. If applied proportionally across NIH, funding for the National ...
(Date:3/22/2017)... N.J. and PETACH TIKVAH, Israel ... Inc. (NASDAQ: BCLI), a leading developer of adult stem ... Chaim Lebovits , Chief Executive Officer, will provide an ... Sachs Associates 2 nd Annual Neuroscience Biopartnering and ... at the New York Academy of Sciences. ...
Breaking Biology Technology:
Cached News: