Volume 88 Issue 35 | p. 25 | Concentrates
Issue Date: August 25, 2010

A New Route To Germ-Killing Photons

ACS Meeting News: Lanthanide nanomaterials convert visible light into disinfecting ultraviolet light
Department: Science & Technology
News Channels: Environmental SCENE, Nano SCENE
Keywords: nanoparticles, upconversion, water purification, antimicrobial

When you flip the switch on a fluorescent light, a coating in the bulb turns ultraviolet radiation into visible light. A team of engineers at Georgia Tech are developing nanomaterials that have the exact opposite effect. At the American Chemical Society Meeting in Boston, the researchers explained how transforming visible light into ultraviolet emissions could make these new coatings efficient germ killers.

The engineers designed the materials so that when bright indoor lighting or . . .

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