Navigation Links
Producing clean water in an emergency
Date:2/23/2011

Disasters such as floods, tsunamis, and earthquakes often result in the spread of diseases like gastroenteritis, giardiasis and even cholera because of an immediate shortage of clean drinking water. Now, chemistry researchers at McGill University have taken a key step towards making a cheap, portable, paper-based filter coated with silver nanoparticles to be used in these emergency settings.

"Silver has been used to clean water for a very long time. The Greeks and Romans kept their water in silver jugs," says Prof. Derek Gray, from McGill's Department of Chemistry. But though silver is used to get rid of bacteria in a variety of settings, from bandages to antibacterial socks, no one has used it systematically to clean water before. "It's because it seems too simple," affirms Gray.

Prof. Gray's team, which included graduate student Theresa Dankovich, coated thick (0.5mm) hand-sized sheets of an absorbent porous paper with silver nanoparticles and then poured live bacteria through it. "Viewed in an electron microscope, the paper looks as though there are silver polka dots all over," says Dankovich, "and the neat thing is that the silver nanoparticles stay on the paper even when the contaminated water goes through." The results were definitive. Even when the paper contains a small quantity of silver (5.9 mg of silver per dry gram of paper), the filter is able to kill nearly all the bacteria and produce water that meets the standards set by the American Environmental Protection Agency (EPA).

The filter is not envisaged as a routine water purification system, but as a way of providing rapid small-scale assistance in emergency settings. "It works well in the lab," says Gray, "now we need to improve it and test it in the field."

The research was funded by the National Sciences and Engineering Council of Canada (NSERC) and the work is part of the NSERC Sentinel Bioactive Paper Network.


'/>"/>

Contact: Katherine Gombay
katherine.gombay@mcgill.ca
514-398-2189
McGill University
Source:Eurekalert

Page: 1

Related medicine news :

1. UD team develops new method for producing proteins critical to medical research
2. Study Finds That Insulin-Producing Beta Cells Can Be Reborn
3. Pharmaceuticals: A market for producing lemons and serious harm
4. JAK inhibitors producing significant response in myelofibrosis patients
5. Sperm-Producing Cells Coaxed to Produce Insulin
6. Faster, scalable method for producing AAV-based gene transfer vectors
7. Nanofilm Introduces Clarity Defog It™ Anti Fog Treatment and EcoClens™ Eco-Friendly Lens Cleaner at Vision Expo East
8. For a Healthier, Cleaner Fitness Regimen - Venture Products Shock Athletic(TM) Mats and Interlocking Flooring
9. Pet Dental Month Prime Time To Schedule Preventive Annual Cleaning For Pets
10. IBM Enterprise CloneDR Helps Enterprises Transform Bloated COBOL into Clean, Tight, and Maintainable Code
11. Dr. Catherine Ross to Participate Today in White House Clean Energy Economy Forum
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... PITTSBURGH, Pa. (PRWEB) , ... October 13, 2017 , ... ... the dark poses a problem. Fortunately, an inventor from Austin, Texas, has identified a ... access to medication in darkness or restricted lighting. As such, it eliminates the need ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... Hannah Randall, PharmD ‘17, and Jennifer Huggins, PharmD ’17, along with clinical ... the primary prevention of cardiovascular diseases during the 15th Annual Women’s Health ...
(Date:10/13/2017)... RIDGE, N.J. (PRWEB) , ... October 13, 2017 , ... ... annual Holly Day Market. Featuring a collection of specialty vendors and unique items from ... of personalized and quality-focused health and wellness services offered by the VNA. The ...
(Date:10/13/2017)... ... October 13, 2017 , ... Talented host, actor Rob ... sciatica in a new episode of "Success Files," which is an award-winning educational ... and investigates each subject in-depth with passion and integrity. , Sciatica occurs when ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... ... advisory services for healthcare compliance program management, will showcase a range of technology ... Association for Assisted Living (NCAL) Convention and Expo to be held October 14–18, ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... Denmark , Oct. 2, 2017 The Rebound ... in the struggle to reverse the tide of prescription drug ... for regulating their medicine intake and stepping down their dosage ... set to launch in December 2017; the first 100,000 people ... Learn more at http://www.rebound-solution.com/ ...
(Date:9/27/2017)... NEW YORK , Sept. 27, 2017  DarioHealth Corp. (NASDAQ: ... data solutions, today announced that its MyDario product is expected to appear ... listings for when The Dr. Oz Show airs in your area: ... The nine-time Emmy award-winning, The ... ...
(Date:9/22/2017)... Sept. 22, 2017  As the latest Obamacare repeal ... Bill Cassidy (R-LA) and Lindsey Graham ... the medical device industry is in an odd place. ... the 2.3% excise tax on medical device sales passed ... want covered patients, increased visits and hospital customers with ...
Breaking Medicine Technology: