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Sep 25

Texas A&M researchers concoct nanoparticles to soak up crude oil spills

The 2010 Deepwater Horizon may be forgotten to many, but remnants of its destruction still remain in the Gulf of Mexico. Mercifully, it appears that researchers at Texas A&M University “have developed a non-toxic sequestering agent-iron oxide nanoparticles coated in a polymer mesh that can hold up to 10 times their weight in crude oil.” In layman’s terms, they’ve engineered a material that can safely soak up oil. As the story goes, the nanoparticles “consist of an iron oxide core surrounded by a shell of polymeric material,” with the goal being to soak up leftover oil that isn’t captured using conventional mechanical means. The next step? Creating an enhanced version that’s biodegradable; as it stands, the existing particles could pose a threat if not collected once they’ve accomplished their duties.

Filed under: Misc, Alt

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Source: Materials 360 Online, Inside Science, ACS Nano

Sep 12

New ‘nano-code’ could help fight banknote forgery by embedding invisible QR-style ciphers

Posted in: Today's Chili

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.

Continue reading New ‘nano-code’ could help fight banknote forgery by embedding invisible QR-style ciphers

Filed under: Science, Alt

New ‘nano-code’ could help fight banknote forgery by embedding invisible QR-style ciphers originally appeared on Engadget on Thu, 13 Sep 2012 00:57:00 EDT. Please see our terms for use of feeds.

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