Electrified nano filter kill
Andhra Pradesh ~ India ~ International ~ City ~ Entertainment ~ Business ~ Sports ~ Technology ~ Health ~ Features
Twitter ~ Facebook
Home / Technology News / 2010 / October 2010 / October 14, 2010
Electrified nano filter 'to kill 98pc of disease-causing bacteria in water'
RSS / Print / Comments

Technology News

Yoga may have the power to fight fibromyalgia
Yoga exercises may have the power to combat fibromyalgia - a medical disorder characterized by chronic widespread pain, according to new research conducted at Oregon Health and Science University. ANI

Underwater robot to explore ice-covered ocean in Antarctica
An underwater robot is being deployed by researchers at the University of British Columbia to explore ice-covered ocean in Antarctica from October 17 through November 12. ANI

Electrified nano filter 'to kill 98pc of disease-causing bacteria in water'
Scientists are reporting development and successful initial tests of an inexpensive new filtering technology that kills up to 98 percent of disease-causing bacteria in water in seconds without clogging. ANI

Electrified nano filter 'to kill 98pc of disease-causing bacteria in water'

Scientists are reporting development and successful initial tests of an inexpensive new filtering technology that kills up to 98 percent of disease-causing bacteria in water in seconds without clogging.


Washington, Oct 14 : Scientists are reporting development and successful initial tests of an inexpensive new filtering technology that kills up to 98 percent of disease-causing bacteria in water in seconds without clogging.

Yi Cui and colleagues explain that most water purifier's work by trapping bacteria in tiny pores of filter material. Pushing water through those filters requires electric pumps and consumes a lot of energy. In addition, the filters can get clogged and must be changed periodically.

The new material, in contrast, has relatively huge pores, which allow water to flow through easily. And it kills bacteria outright, rather than just trapping them.

The scientists knew that contact with silver and electricity can destroy bacteria, and decided to combine both approaches. They spread sub-microscopic silver nanowires onto cotton, and then added a coating of carbon nanotubes, which give the filter extra electrical conductivity.

Tests of the material on E. coli-tainted water showed that the silver/electrified cotton killed up to 98 percent of the bacteria. The filter material never clogged, and the water flowed through it very quickly without any need for a pump.

"Such technology could dramatically lower the cost of a wide array of filtration technologies for water as well as food, air, and pharmaceuticals where the need to frequently replace filters is a large cost and difficult challenge," their report states.

The report appears in Nano Letters, a monthly American Chemical Society journal.

ANI

Link to this page

Suggested pages for your additional reading
AndhraNews.net on Facebook






© 2000-2017 AndhraNews.net. All Rights Reserved and are of their respective owners.
Disclaimer, Terms of Service & Privacy Policy | Contact Us