Navigation Links
Behavior modification could ease concerns about nanoparticles
Date:12/16/2009

In an advance that could help ease health and environmental concerns about the emerging nanotechnology industry, scientists are reporting development of technology for changing the behavior of nanoparticles in municipal sewage treatment plants their main gateway into the environment. Their study was published in ACS' journal Environmental Science & Technology.

Helen Jarvie from the UK Centre for Ecology and Hydrology and colleagues note that experts predict large increases in the production of nanoparticles particles less than 1/1000th the width of a human hair in the next decade. Manufacturers already use 2 million tons of nanoparticles each year in foods, cosmetics, medicines, and other consumer products. Studies have hinted that some nanoparticles could have adverse environmental health effects. Water discharged from sewage treatment plants is the major gateway for spread of nanoparticles to the aquatic environment. Scientists thus are focusing on how nanoparticles behave in wastewater and how that gateway might be closed off.

The study simulated (primary) sewage treatment to show that coating silica nanoparticles (similar to those used in ointments, toothpaste and household cleaners) with a detergent-like material made the nanoparticles clump together into the solid residue termed sewage sludge. Sludge often is stored in landfills or recycled as agricultural fertilizer. Uncoated nanoparticles, in contrast, stayed in the water and therefore remained in the effluent stream.

As the nanoparticles are simply too small to be visualized optically, the team used neutron scattering (at the UK's ISIS Facility) to view the sewage at the nano scale. The neutrons easily penetrate the sewage 'soup' and scatter strongly from the nanoparticles, allowing their aggregation behavior to be followed with time. The study demonstrates the potential for coating or otherwise changing the surface chemistry of nanoparticles to re-route their journey through sewage treatment plants, the scientists say.


'/>"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert  

Related medicine news :

1. Bad Behavior as a Kid Linked to Early Death in Men
2. Late-breaking brain and behavior research presented at ACNP annual meeting this week
3. New Research From EBRI: Consumer-Driven Health Plan Participants Display Cost-Conscious Behavior, Utilize Wellness Programs
4. Parent training key to improved treatment of behavior problems in children with autism
5. Pennsylvania Schools Report Decrease in Bullying Behaviors
6. Boys Team Sports May Encourage Bad Behavior
7. Behavioral Testing for Children Now Offered at Marianjoy
8. Blood vessels might predict prostate cancer behavior
9. comScore Announces Availability of comScore/ImpactRx Physician Behavioral Measurement(TM) Solution
10. New EPA Rodent Study Finds No Low-Dose BPA Effects on Reproductive Function or Behavior
11. Pitt study shows linkage between teen girls weight and sexual behavior
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Behavior modification could ease concerns about nanoparticles
(Date:1/17/2017)... ... January 17, 2017 , ... A prescription medication bottle, pocket knife, ... Cradle to Cradle Product Design Challenge , the Cradle to Cradle Products ... six circular design challenges scheduled to run through early 2018. The challenges are presented ...
(Date:1/17/2017)... (PRWEB) , ... January 17, 2017 , ... Neil H. ... financial planning assistance to communities throughout the region, is launching a charity drive to ... disease is by far the deadliest killer in America, and is responsible for 1 ...
(Date:1/17/2017)... (PRWEB) , ... January 17, 2017 , ... SC&H Group, ... firm as a Principal in its IT Advisory Services practice . Rossi is ... months as market demand for strategic IT guidance grows, and the practice continues to ...
(Date:1/17/2017)... (PRWEB) , ... January 17, 2017 , ... ... to visualize, detect, and eliminate cyber threats in real-time, today announced a strategic ... provider, headquartered in Selangor, Malaysia. Joining other Seceon partners, TechLab Security has become ...
(Date:1/17/2017)... (PRWEB) , ... January 17, 2017 , ... ... families from two offices in Tyler, has announced the latest beneficiary of their ... Wish Network, a nonprofit organization dedicated to fulfilling the dreams of terminally ill ...
Breaking Medicine News(10 mins):
(Date:1/17/2017)... 2017 According to a new market research report "Neural Network ... Software), Vertical, and Region - Global Forecast to 2021" published by MarketsandMarkets, the ... by 2021, at a Compound Annual Growth Rate (CAGR) of 33.2%. ... ... MarketsandMarkets Logo ...
(Date:1/17/2017)... and KANSAS CITY, Mo. ... Hospitals Neonatal Consortium (CHNC) has selected Velos and ... visionary data management and multicenter initiatives. ... comprised of 32 Neonatal Intensive Care Units at ... . The consortium provides a benchmark of ...
(Date:1/17/2017)... --  Tocagen Inc ., a clinical-stage, cancer-selective gene therapy company, today ... and pharmaceutical development at Tocagen, will present at Phacilitate Cell ... in Miami . Details of ... ... viruses - what to do when and why Date and Time: ...
Breaking Medicine Technology: