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:4/23/2014)... health benefits of probiotics, antioxidants and other nutritional compounds, ... chemical industry is getting in on the action. But ... so the industry is responding with clinical research to ... in Chemical & Engineering News (C&EN), the ... Melody M. Bomgardner, a senior editor at C&EN, writes ...
(Date:4/23/2014)... from the Cancer Science Institute of Singapore (CSI Singapore) ... cancer specific stem cell which causes gastric cancer. This ... for the treatment of this disease and other types ... Chan Shing Leng, Research Assistant Professor at CSI Singapore, ... of a cell surface protein, CD44v8-10, marks gastric cancer ...
(Date:4/23/2014)... known as Ritalin, may prevent the depletion of self-control, ... a journal of the Association for Psychological Science. , ... or trying to focus attention on a boring textbook ... potential explanation for this difficulty: Exerting self-control for a ... self-control effectively on subsequent tasks. , "It is as ...
(Date:4/22/2014)... visited the New Jersey Institute of Technology (NJIT) ... for the launch of the New Jersey Innovation ... new model for business innovation through the leveraging ... investment. U.S. Senator Cory Booker, Panasonic Corp. of ... Jersey Lieutenant Governor Kim Guadagno, New Jersey Secretary ...
(Date:4/22/2014)... DALLAS April 22, 2014 Researchers at UT ... people suffering from depression . , A ... major mechanism by which ghrelin (a hormone with natural ... identified a potentially powerful new treatment for depression in ... , The study, published online in April,s ...
Breaking Medicine News(10 mins):Health News:Scientists identify cancer specific cell for potential treatment of gastric cancer 2Health News:Scientists identify cancer specific cell for potential treatment of gastric cancer 3Health News:ADHD drug may help preserve our self-control resources 2Health News:Government and industry leaders herald launch of NJIT's New Jersey Innovation Institute 2Health News:Depressed? Researchers identify new anti-depressant mechanisms, therapeutic approaches 2Health News:Depressed? Researchers identify new anti-depressant mechanisms, therapeutic approaches 3
... X-rays allowing, dentists to remineralize affected teeth. ... 3 /PRNewswire/ - Quantum Dental Technologies, a Canadian,diagnostic ... monitors the early onset of tooth decay without ... of invasive and painful procedures,and encourages better oral ...
... climate change places 1.7,billion people - 25% of ... warns,anti-poverty agency ActionAid., WASHINGTON, July 2 ... ActionAid launches a new report, "Cereal,Offenders: How the ... and What,They Can Do to Stop It." Read ...
... 2 Regarding the completely fabricated,item about GO3 ... July 14, 2008,edition of Star magazine, none of ... were contacted by the magazine prior to publication., ... reviewing its legal options and will vigorously pursue ...
... Jr,Washington Wizards Guard and Washington, DC native, will ... July 29 featuring bowling at Lucky Strike in,Chinatown. ... support the,cause, including Brendan Haywood and DeShawn Stevenson, ... Vince Carter, Kevin Durant, and,Chris Bosh. Additionally, Craig ...
... individual patients, study says , , WEDNESDAY, July 2 (HealthDay News) ... cells in the blood of lung cancer patients may make ... the genetic "signature" of particular tumors but to monitor changes ... think this is key to personalized medicine," said Dr. Daniel ...
... sports medicine specialist, John Albright, MD, will join three other physicians ... of Fame inductee. , ... Orlando, Florida (PRWEB) July ... MD, will join three other physicians as a 2008 American ...
Cached Medicine News:Health News:Breakthrough Technology That Will Revolutionize the Treatment of Tooth Decay 2Health News:Breakthrough Technology That Will Revolutionize the Treatment of Tooth Decay 3Health News:ActionAid Challenges G8 on Response to Food Crisis 2Health News:GO3 Statement Regarding Erroneous Coverage in Star Magazine 2Health News:Washington Wizards Guard Roger Mason Jr. to Host Bowling at Lucky Strike to Benefit National Kidney Foundation of the National Capital Area 2Health News:Circulating Tumor Cells Reveal Insights Into Lung Cancers 2Health News:Circulating Tumor Cells Reveal Insights Into Lung Cancers 3Health News:Renowned Iowa Orthopaedic Surgeon, John Albright, MD, Inducted into Sports Medicine Hall of Fame 2Health News:Renowned Iowa Orthopaedic Surgeon, John Albright, MD, Inducted into Sports Medicine Hall of Fame 3
(Date:1/14/2014)... AUSTIN, Texas , Jan. 14, 2014  Luminex Corporation (Nasdaq: ... report results for the fourth quarter of 2013 on Monday, ... scheduled for release after the close of trading. ... a conference call to discuss the operating highlights and financial ...
(Date:1/14/2014)... , Jan. 14, 2014 Dynamic Healthcare Services, Inc. ("DHS"), ... that it acquired Progressive Home Medical Equipment, Inc. ("Progressive") of ... The terms of the acquisition were not disclosed. ... company providing a wide range of sleep, mobility, and respiratory ...
(Date:1/14/2014)... a manufacturer of ergonomically designed laboratory equipment for research, ... Japan to sell and service the Hitachi brand ... utilize its network of sales professionals throughout the United ... assistance in application use, product benefits and features, options and accessories, ...
Breaking Medicine Technology:Luminex Corporation Fourth Quarter Earnings Release Scheduled for February 3, 2014 2Luminex Corporation Fourth Quarter Earnings Release Scheduled for February 3, 2014 3Dynamic Healthcare Services Completes Progressive Home Medical Equipment of Clarion, PA Investment 2Dynamic Healthcare Services Completes Progressive Home Medical Equipment of Clarion, PA Investment 3NuAire announces sales and service of Hitachi Koki centrifuges in North America 2
6 mm x 23 mm blunt, double-edged blade. Flat handle....
5 mm x 8 mm "D" shaped knife. Flat handle. Designated most popular model or size....
2.5 mm diameter semi-sharp blade. Referred to as "Large Weapon". Malleable shaft. Round handle. Designated most popular model or size....
0.75 mm diameter blade. Angled 60 degrees. Round handle. Designated most popular model or size....
Medicine Products: