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thinkahol *

Rainbows without pigments offer new defense against fraud - 0 views

www.sciencedaily.com/...110518105724.htm

Rainbows without pigments offer new defense against fraud

shared by thinkahol * on 22 May 11 - No Cached
  • thinkahol * on 22 May 11
     
    ScienceDaily (May 19, 2011) - Scientists from the University of Sheffield have developed pigment-free, intensely coloured polymer materials, which could provide new, anti-counterfeit devices on passports or banknotes due to their difficulty to copy.
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