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:
TAG: Modifications render carbon nanotubes nontoxic

(Date:3/31/2015)... YORK , March 31, 2015  Elephant Talk ... "Company"), a global provider of Software Defined Network Architecture ... today announced total revenue of approximately $20.4 million for ... a restated $19.5 million for the year ended December ... calendar 2014, the Company had completed its multi-year transition ...
(Date:3/26/2015)... TORONTO , March 26, 2015 ... premier family, social, recreation and athletic club, today announced ... designed to allow freedom of movement for members and ... "Following a comprehensive process, we selected FST,s IMID ... sophistication and convenience for our members and staff, in ...
(Date:3/24/2015)...   NexID Biometrics LLC, whose spoof-mitigation technology ... announced the beginning of shipments of version 2.0 of ... company, based in Potsdam, N.Y. , ... which began here today at the Walter E. Washington ... its SDK boosts the accuracy rate range to 96.5 ...
Breaking Biology News(10 mins):Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 2Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 3Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 4Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 5Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 6Granite Club First Private Club in North America to Implement FST Biometrics Secure Access Solution, as Part of Multi-million Dollar Expansion 2NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 2
(Date:4/23/2015)... Proove Biosciences , a commercial ... to announce the launch of Proove Non-Opioid ... 62 genetic variations to predict good versus poor ... non-opioid pain medications, namely ibuprofen (brand name Advil, ... Xanax) and acetaminophen (brand name Tylenol). , ...
(Date:4/23/2015)... Texas (PRWEB) April 23, 2015 ReliantHeart's ... True Flow (blood flow through the device) in real ... by Numerex, the world’s leading provider of Machine to ... , True Flow via VADLink.com can ... there is any drop in flow below a minimum ...
(Date:4/22/2015)... , April 22, 2015 /PRNewswire/ - BioAmber Inc. (NYSE and EURONEXT Paris:BIOA) today ... first quarter 2015 on Thursday, May 7, 2015 after ... a webcast and conference call for 4.30 pm ET ... Live audio of the conference call will be ... investors, members of the news media and the general ...
(Date:4/22/2015)... 2015 2015 HIMSS Annual Conference & ... of the 9th annual Venture+ Forum pitch competition for ... selected to deliver live pitch presentations to a panel ... HIMSS15 held last week in Chicago ... professionals and 1,200 exhibiting companies from around the world, ...
Breaking Biology Technology:Proove Biosciences Launches World’s First Test to Predict Responders to Commonly Prescribed Non-Opioid Pain Medications 2Proove Biosciences Launches World’s First Test to Predict Responders to Commonly Prescribed Non-Opioid Pain Medications 3BioAmber Announces Webcast of Fiscal First Quarter 2015 Financial Results 2TowerView Health Named Venture+ Forum Pitch Competition Winner At HIMSS15 2TowerView Health Named Venture+ Forum Pitch Competition Winner At HIMSS15 3
Cached News: