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Home > News > Nanotechnology in cosmetics - 2000 years ago...?

September 5th, 2006

Nanotechnology in cosmetics - 2000 years ago...?

Abstract:
These days we are debating if nanoparticles in sunblock and toothpaste are safe. The ancient Greeks and Romans didn't know about such things - but they already used nanotechnology in their cosmetics. A group of researchers in France showed that lead-based chemistry, which was initiated in Egypt more than 4000 years ago, could result in the synthesis of lead sulfide (PbS, galena) nanocrystals.

Source:
nanowerk.com

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