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Scientists Discover New Technique To Change the Color of Gold Without Using Chemicals

Posted By Mark Boyer On November 4, 2012 @ 2:52 pm In Accessories and Fashion,green technology | No Comments

Jewelry, gold, necklaces, jewels, [1]Photo by Shutterstock [2]

Researchers at the University of Southampton [3] have developed a new way to alter the color of gold—or just about any metal— without chemically altering it. The technique involves “nano-patterning” — etching the metal’s surface with patterns of specific shape and depth, which manipulates the wavelengths that are visible to the human eye. The technique could deliver valuable economic and environmental benefits, and it could be harnessed to manufacture jewelry and to make banknotes and documents more difficult to forge.

READ MORE > [4]


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URL to article: http://inhabitat.com/scientists-discover-new-technique-to-change-the-color-of-gold-without-using-chemicals/

URLs in this post:

[1] Image: http://inhabitat.com/scientists-discover-new-technique-to-change-the-color-of-gold-without-using-chemicals/southampton-university-gold-color-1-537x402/

[2] Shutterstock: http://www.shutterstock.com/pic-94371739/stock-photo-various-gold-jewellery-on-black-background.html

[3] University of Southampton: http://www.orc.southampton.ac.uk/midastouch.html

[4] READ MORE >: http://www.ecouterre.com/u-k-scientists-change-the-color-of-gold-without-chemical-treatments/

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