Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

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

Sopping up proteins with thermosponges: Researchers develop novel nanoparticle platform that proves effective in delivering protein-based drugs October 22nd, 2014

Brookhaven Lab Launches Computational Science Initiative:Leveraging computational science expertise and investments across the Laboratory to tackle "big data" challenges October 22nd, 2014

Bipolar Disorder Discovery at the Nano Level: Tiny structures found in brain synapses help scientists better understand disorder October 22nd, 2014

NIST offers electronics industry 2 ways to snoop on self-organizing molecules October 22nd, 2014

Environment

Imaging electric charge propagating along microbial nanowires October 20th, 2014

Physicists build reversible laser tractor beam October 20th, 2014

Plastic nanoparticles also harm freshwater organisms October 18th, 2014

New Nanocomposites Help Elimination of Toxic Dyes October 15th, 2014

Safety-Nanoparticles/Risk management

Plastic nanoparticles also harm freshwater organisms October 18th, 2014

Human health, wealth require expanded marine science, experts say: In Rome, European experts publish a 'common vision' of priorities for marine research and action through 2020 October 9th, 2014

Coating Nanotubes with Aluminum Oxide Lowers Risk of Lung Injury October 6th, 2014

PEN Inc. Chairman Scott Rickert Announces Company Vision, Product Priorities and Management Team: Webcast Highlights the Launch of PEN October 3rd, 2014

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







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE