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:5/4/2016)... (PRWEB) , ... May 04, 2016 , ... Advanced Spine ... to help restore its patients’ health, is hosting a free seminar on stem cell ... be held at Advanced Spine & Sport, 4601 Telephone Road, Suite 110, Ventura, CA. ...
(Date:5/4/2016)... ... 04, 2016 , ... Mediware Information Systems, Inc . ... that helps blood and marrow transplant (BMT) programs meet compliance and accreditation standards ... continued to enhance core application features. These enhancements are designed to help BMT ...
(Date:5/4/2016)... , ... May 04, 2016 , ... ... Scientific Group is scheduled on July 25-27, 2016 at Las Vegas. It aims ... care professionals from educational institutes and research organizations across the globe; making the ...
(Date:5/3/2016)... ... , ... The National Association of Professional Women (NAPW) honors ... Circle. She is recognized with this prestigious distinction for leadership in business. NAPW is ... and over 200 operating Local Chapters. , “I’m pleased to welcome Barbara into this ...
(Date:5/3/2016)... ... , ... Sue Desmond-Hellmann, chief executive officer of the Bill & Melinda Gates ... possibility in her keynote address at Georgia State University’s spring commencement on ... rich experience as a scientist, physician and executive, Desmond-Hellmann leads the Gates Foundation’s efforts ...
Breaking Medicine News(10 mins):
(Date:5/3/2016)... -- Intec Pharma Ltd. (NASDAQ: ... announced the appointment of Pnina Strauss-Levy as ... Strauss-Levy has 15 years of experience in clinical research ... record, having supported the advancement of several products through ... the United States and ...
(Date:5/3/2016)... 3, 2016 Norgine ... sie einen entscheidenden Meilenstein durch diese Veröffentlichung ... zum Handeln, um Patientenresultate  bei Verdauungs- und ... Fortschritten im Verständnis der Hepatischen Enzephalopathie bei ... für Hepatische Enzephalopathie in der Öffentlichkeit zu ...
(Date:5/2/2016)... 2, 2016  Deerfield announced today it led ... Vision, Inc. Graybug Vision is an early stage ... transform care for ocular diseases including wet age-related ... was first developed at Johns Hopkins University and ... Graybug Vision is developing ophthalmology ...
Breaking Medicine Technology: