Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > News > Nanoparticles from sunscreens damage microbes

March 24th, 2009

Nanoparticles from sunscreens damage microbes

Abstract:
Nanoparticles in sunscreens, cosmetics and other consumer products may pose risks to the environment by damaging beneficial microbes, scientists reported Tuesday. Nano-titanium dioxide found in personal care products reduced biological roles of bacteria after less than an hour of exposure. The findings suggest that these particles, which easily end up at sewage treatment plants after being washed off in showers, could eliminate microbes that play vital roles in ecosystems and help treat wastewater.

In the paper presented Tuesday at the annual conference of the American Chemical Society in Salt Lake City, researchers Cyndee Gruden and Olga Mileyeva-Biebesheimer added varying amounts of nanoparticles to water containing bacteria. The bacteria were grown in a lab and stained with a green fluorescent. The scientists saw significant damage to the bacteria's cell walls after adding 10 to 100 milligrams per liter of the nano-substance. The cell membranes changed from green fluorescent to a faint red glow, which indicates damage.

Source:
Environmental Health News

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Dr. Cyndee L. Gruden, Ph.D., PE

Related News Press

News and information

Innovation in Nanotechnology is Focus of Symposium: Annual event brings international experts to Northwestern Oct. 6 September 29th, 2016

Cambrios at CEATEC - Japan 2016 September 29th, 2016

Picosun patents ALD nanolaminate to prevent electronics from overheating September 28th, 2016

Leti and Taiwanese Tech Organizations Sponsoring Workshop in Taipei on MEMS, IoT, Smart Lighting Applications, System Reliability & Security September 28th, 2016

Environment

Coffee-infused foam removes lead from contaminated water September 21st, 2016

Mathematical nanotoxicoproteomics: Quantitative characterization of effects of multi-walled carbon nanotubes: This research article by Dr. Subhash Basak et al. will be published in Current Computer-Aided Drug Design, Volume 12, 2016 September 2nd, 2016

Nanofur for oil spill cleanup: Materials researchers learn from aquatic ferns: Hairy plant leaves are highly oil-absorbing / publication in bioinspiration & biomimetics / video on absorption capacity August 25th, 2016

Researchers watch catalysts at work August 19th, 2016

Safety-Nanoparticles/Risk management

As You Sow’s Shareholder Inquiry on Nanomaterials Fought by Walgreens: Shareholder Proposal Addresses Recent Laboratory Tests Finding Harmful Nanomaterials in Walgreens’ Store Brand Infant Formula September 21st, 2016

Iran to hold intl. school on application of nanomaterials in medicine September 20th, 2016

Nano-Toxicity Testing at Regulatory Sciences Summit: In Vitro Tests Can Most Efficiently Assess Nanomaterial Toxicity September 6th, 2016

Mathematical nanotoxicoproteomics: Quantitative characterization of effects of multi-walled carbon nanotubes: This research article by Dr. Subhash Basak et al. will be published in Current Computer-Aided Drug Design, Volume 12, 2016 September 2nd, 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