美国科学60秒 SSS 2012-11-06

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Now imagine you’re in charge of the silver collection at the metropolitan² museum of art. Fortunately, for art conservators everywhere, scientists are hard to work on the process that may help keep silver shining and with a lot less elbow grease. 

 

Researchers at the University of Maryland college park, together with the [Waltras] Art Museum in Baltimore, are using nanotechnology to prevent that nasty sulfite tarnish³ from forming. The method called atomic-level deposition⁴ coats silver objects with a protective [orksite] film in layers just a single atom thick. Researchers discussed it at the recent 2012 AVS International Symposium⁵, witch covers materials, interfaces⁶ and processing.

 

The technique is still being worked out and hasn’t yet been used on priceless works of art. But researchers say that it offers a number of advantages over current methods. For one thing, conventional polishing can actually remove underlying⁷ silver. 

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