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Solar-Powered Bioremediation Nano Filter Removes Harmful Carcinogens and Antibiotics from Water

New research, just published, details how University of Cincinnati researchers have developed and tested a solar-powered nano filter that is able to remove harmful carcinogens and antibiotics from water sources – lakes and rivers – at a significantly higher rate than the currently used filtering technology made of activated carbon. 

These spheres represent solar-powered antibotic filters. Each sphere is smaller than the diamter of a human hair. One day, a collection of such filters could float downstream from urban or farming areas to capture harmful compounds in water. Credit: David Wendell, University of Cincinnati.

In the journal "Nano Letters," Vikram Kapoor, environmental engineering doctoral student, and David Wendell, assistant professor of environmental engineering, report on their development and testing of the new filter made of two bacterial proteins that was able to absorb 64 percent of antibiotics in surface waters vs. about 40 percent absorbed by the currently used filtering technology made of activated carbon. One of the more exciting aspects of their filter is the ability to reuse the antibiotics that are captured. 

Kapoor and Wendell began development of their new nano filter in 2010 and testing in 2012, with the results reported in a paper titled "Engineering Bacterial Efflux Pumps for Solar-Powered Bioremediation of Surface Waters."

For the full article use the link below.........

Azonano

http://www.azonano.com/news.aspx?newsID=27169