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New 'nano-code' could help fight banknote forgery New 'nano-code' could help fight banknote forgery
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New 'nano-code' could help fight banknote forgery
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Old 13th September 2012, 11:16   #1
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Default New 'nano-code' could help fight banknote forgery

We've all seen (and probably used) QR codes at some point. And, handy as they are for quick linking to apps, or value added content etc, there's usually not much else going on. Unless you're one of the team at South Dakota School of Mines and Technology, that is, who have created a tiny version of the quadrilateral-codes that could be used to spot counterfeit money. The invention uses nanoparticles combined with blue and green fluorescent ink, and can be sprayed onto surfaces such as glass, plastic film, or of course, pictures of American presidents. The nano-code remains invisible until placed under a near-infrared laser, making it ideal for helping spot legit bank notes. The creators say they have done significant wear tests, which suggest that it's durable, but they also accept that eventually criminal technology could eventually catch up, in the constant cat and mouse game between mandated money producers and forgers. Whether there'd be links to the Benjamin Franklin Wiki page is unclear.

http://www.engadget.com/2012/09/13/n...y-embedding-i/
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