Fog Be Gone: Nanocoating clarifies the view

10:09am, August 31, 2005

A new coating that prevents fogging and reflection could one day clear the world of misty mirrors, glaring glasses, and cloudy camera lenses. Researchers described their innovation, which relies on porous layers of nanoscale particles, at the American Chemical Society's meeting this week in Washington, D.C.

Fogging occurs when water droplets from moist air condense on a cool surface and scatter light there. Most of today's antifogging options are spray-on polymers that, once applied, flatten the droplets into nonscattering shapes. However, these treatments quickly wear off.

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