Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button

Home > News > Understanding Potential Toxic Effects of Carbon-Based Nanomaterials

July 21st, 2006

Understanding Potential Toxic Effects of Carbon-Based Nanomaterials

Abstract:
Writing in the journal Nano Letters, a team of researchers based at the École Polytechnique Fédérale de Lausanne in Switzerland report their studies on how shape, size and surface properties affect cellular toxicity. This team, led by Arnaud Magrez, Ph.D., added increasing concentrations of multi-walled carbon nanotubes, carbon nanofibers, or carbon nanoparticles to three different types of cultured human lung tumor cells and measured changes in cell proliferation and overall cellular health. The researchers found evidence of toxicity as soon as 24 hours after dosing with all three materials and in each cell line, though multi-walled carbon nanotubes were the least toxic in all assays.

Studies with both types of nanotubes showed that they were taken up readily by immune system cells. However, none of the immune cells showed any signs of toxicity. Additional experiments showed that the functionalized nanotubes did not affect the functional activity of these cells either. The researchers note that their results confirm the findings of other laboratories that water-soluble carbon nanotubes have limited or no toxicity when tested in a wide variety of cell types.

Source:
nano.cancer.gov

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

Preparing for Nano

Searching for a nanotech self-organizing principle May 1st, 2016

Nanotechnology is changing everything from medicine to self-healing buildings: Nanotechnology is so small it's measured in billionths of metres, and it is revolutionising every aspect of our lives April 2nd, 2016

Durnham University's DEEPEN project comes to a close September 26th, 2012

Technical Seminar at ANFoS 2012 August 22nd, 2012

Nanotubes/Buckyballs/Fullerenes

McMaster researchers resolve a problem that has been holding back a technological revolution August 18th, 2016

'Second skin' protects soldiers from biological and chemical agents August 5th, 2016

Carbon nanotube 'stitches' make stronger, lighter composites: Method to reinforce these materials could help make airplane frames lighter, more damage-resistant August 4th, 2016

Easier, faster, cheaper: A full-filling approach to making nanotubes of consistent quality: Approach opens a straightforward route for engineering the properties of single-wall carbon nanotubes July 19th, 2016

Nanomedicine

Nanoparticles that speed blood clotting may someday save lives August 23rd, 2016

A new way to display the 3-D structure of molecules: Metal-organic frameworks provide a new platform for solving the structure of hard-to-study samples August 21st, 2016

Curbing the life-long effects of traumatic brain injury August 19th, 2016

Lab team spins ginger into nanoparticles to heal inflammatory bowel disease August 19th, 2016

Materials/Metamaterials

New flexible material can make any window 'smart' August 23rd, 2016

Researchers reduce expensive noble metals for fuel cell reactions August 22nd, 2016

Industrial Nanotech, Inc. Provides Shareholder Update August 22nd, 2016

Carbodeon Ltd Oy Closes EUR 1.5 million Funding Round From Straightforward Capital: Carbodeon will accelerate its nanodiamonds business and expand manufacturing capacity August 21st, 2016

Announcements

New theory could lead to new generation of energy friendly optoelectronics: Researchers at Queen's University Belfast and ETH Zurich, Switzerland, have created a new theoretical framework which could help physicists and device engineers design better optoelectronics August 23rd, 2016

New flexible material can make any window 'smart' August 23rd, 2016

University of Puerto Rico and NASA back in the news – XEI reports August 23rd, 2016

Nanoparticles that speed blood clotting may someday save lives August 23rd, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic