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Rainbows without pigments offer new defense against fraud
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www.sciencedaily.com/...110518105724.htm
Rainbows
without
pigments
offer
new
defense
against
fraud
shared by
thinkahol *
on 22 May 11
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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.
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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