Invisible QR Codes Could Be Used To Tackle Counterfeit Bank Notes
The application of QR codes has been a conundrum for quite some time. Now, a team of researchers at the University of South Dakota and South Dakota School Of Mines & Technology may have finally found a real use for them: to combat counterfeit goods.
Created from tiny nanoparticles combined with blue and green fluorescence ink, the team has concocted a QR code mixture that remains invisible until illuminated under infra-red light. The entire process is known as up-conversion, whereby the nanoparticles absorb photons at a non-visible wavelength and emit them in a visible wavelength. The code can later be scanned like a normal QR code with a quick point and snap with a smartphone.
Designed using computer-aided design (CAD), the QR code can then be printed onto any surface with an aerosol jet printer. With the potential to be used in the production of banknotes – fake goods and notes cost government and industries billions of pounds each year – the researchers say the added complexity in production means the level of security is higher than ever.
But it doesn’t stop there. As lead author of the study, Jeevan Meruga, says; “The QR code is tough to counterfeit. We can also change our parameters to make it even more difficult to counterfeit, such as controlling the intensity of the up-converting light or using inks with a higher weight percentage of nanoparticles.” He continues, “We can take the level of security from covert to forensic by simply adding a microscopic message in the QR code, in a different coloured up-converting ink, which then requires a microscope to read the QR code.”
Turns out the Influencer Marketing bubble will burst soon, as their posts, for what they cost, perform terribly. Now I wonder why…
Battlefield returns to its World War Two roots, but is it better than ever? Find out in my review for Stuff Magazine.
11-11: Memories Retold is Aardman’s first major game - a gripping World War 1 story released for the centenary of Armistice Day.
While we worry cybercriminals may be able to hack the human brain at some point far in the future, turns out the basic tech to do so exists today… Yikes.
Looking for a new racing game that throws realism out the window in exchange for fun? Let’s see if GRIP: Combat Racing fits the bill.
Horror movies are one thing, but here are ten non-horror films that unexpectedly scare the living bejesus out of you.
Gaming with colour blindness is a bigger problem than you may think, so what are developers doing to help?
Does the gameplay of Reigns fit with the Game of Thrones lore, to make an addictive mobile game? Find out in my review…
Are you a budding digital creative pro looking for a new monitor? The Eizo CS2420 is a really good option!
In one of the more ridiculous stories of the week, Loughborough academics sent a letter to UK parliament, informing them that memes cause teen obesity…