Nanowerk Spotlight) 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. With a diameter of about 5 nm, the appearance of these crystals is quite similar to PbS quantum dots synthesized by modern materials science techniques.
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Archive for September 7th, 2006|Daily archive page
Nanotechnology in cosmetics – 2000 years ago…?
In nano on September 7, 2006 at 10:06 pmNanomaterial Database
In nano on September 7, 2006 at 10:02 pmA powerful, free tool for the nanotechnology community to research and buy nanomaterials from many suppliers worldwide. The Nanomaterial Database™ currently contains 1,321 nanoparticles from 91 suppliers.
Cashew to play role in nanotechnology
In nano on September 7, 2006 at 9:58 pmThursday, September 7th, 2006
The cashew nut will soon have a bigger role to play – in nanotechnology…Cashew nut shell liquid (CNSL) — the fluid inside the shell casing of the cashew contains anacardic acids which are useful in preparing magnetic ‘nanofluid,’
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