The combination of ultraviolet (UV) light and certain coatings can lower -- by 15 to 50 percent -- the ability of some types of bacteria to stick to a glass surface and cause contamination or biofouling, Penn State environmental engineers have found.
Dr. Baikun Li, assistant professor of environmental engineering, Penn State Harrisburg, says "Ultraviolet light has been used for many years as an environmentally friendly route to water disinfection. However, these new results indicate that ultraviolet light, combined with certain coatings, also may offer a green approach to keeping glass surfaces free of contamination."
Li described her results in a paper, "The Impact of Ultraviolet Light on Bacterial Adhesion to Glass and Metal-Oxide Coated Surfaces," at the American Chemical Society meeting, Sunday, Aug. 22, in Philadelphia. Her co-author is Dr. Bruce Logan, the Kappe professor of environmental engineering, Penn States University Park campus.
Barbara Hale | EurekAlert!
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