Navigation Links
Behavior modification could ease concerns about nanoparticles

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
American Chemical Society

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:
Related Image:
Behavior modification could ease concerns about nanoparticles
(Date:11/24/2015)... ... November 24, 2015 , ... Eric ... patients the many benefits of the revolutionary BIOLASE WaterLase iPlus 2.0™ system. This ... tools traditionally used by a dentist in Gettysburg, PA . From routine ...
(Date:11/24/2015)... , ... November 24, 2015 , ... Dr. Todd S. ... offer laser services to many of his patients. Dr. Afferica now uses the BIOLASE ... reduce the amount of time the doctor uses other traditional cutting tools, such as ...
(Date:11/24/2015)... ... November 24, 2015 , ... New patients who wish to ... for dental implants at her Mississauga, ON practice. Dr. Williams has been ... placement of dental implants. , Missing teeth can lead to a variety of ...
(Date:11/24/2015)... Tucson, AZ (PRWEB) , ... November 24, 2015 , ... ... iPlus 2.0™ treatments from Dr. Angela Wolfman and Dr. Kedar S. Lele, who are ... used for frenectomies, cavities and fillings, the WaterLase iPlus 2.0™ system causes minimal discomfort ...
(Date:11/24/2015)... ... November 24, 2015 , ... Charitable giving is at its peak ... in the last five weeks of the year totalling over $358 billion in 2014. ... connect the nation’s charities with those individuals who want to “give back” during the ...
Breaking Medicine News(10 mins):
(Date:11/24/2015)... , Nov. 25, 2015 WuXi PharmaTech ... ), a leading open-access R&D capability and technology platform ... with operations in China and ... that at an extraordinary general meeting of shareholders held ... proposal to authorize and approve the previously announced agreement ...
(Date:11/24/2015)... FRANCISCO , Nov. 24, 2015  Thanks to ... Dignity Health St. Mary,s Medical Center,s Sister Diane Grassilli ... breast imaging capabilities in San Francisco ... an anonymous friend, stepped forward with a gift of ... for Breast Digital Mammography with Tomosynthesis and Whole Breast ...
(Date:11/24/2015)... , Nov. 24, 2015  Natera, ... in non-invasive genetic testing and the analysis ... it will present at the 27 th ... December 2, 2015 at 1:00 p.m. ET.  Matthew Rabinowitz, Ph.D., ... financial results, business activities and financial outlook. ...
Breaking Medicine Technology: