When it comes to 3D printing, the sky is the limit. As 3D printing technology continues to advance, applications can be as far reaching as airplane and automobile parts to medical devices and even anatomically correct, biocompatible models. Although 3D printing technology is developing at a rapid pace, the technology itself is not new. It emerged in the 1980s as a means of creating rapid prototypes. In recent years the applications for 3D printed models have evolved with the available hardware, software, and printable materials. Evolving technology, paired with the creative and innovative minds of scientists, engineers, and physicians, has been the launching pad for developments within 3D printing technology specific to healthcare. One way 3D printing technology is poised to create better patient outcomes is in creating an anatomically and patient-specific models to aid in surgery and medical procedures. With the capability to 3D ...

Canada has joined a number of other countries in making its banknotes out of a polymer instead of paper. Bank of Canada announced new banknotes last month. The banknotes will be gradually put into circulation by the end of 2013. The bank has made the move to make the banknotes more difficult to counterfeit.
As Terry Davidson of the Toronto Sun explains:
The issue of the new bills will mark the first time Canadian money has been made out of something other than paper-based material.
‘This will help maintain Canadian’s confidence in their currency,’ said Manuel Perreira, of the Bank of Canada’s Ontario office. ‘We are confident the notes … will (play an important part) in fighting counterfeiting.’
From the various articles in the Toronto Sun and NPR, it wasn’t immediately obvious what the polymer was for these banknotes. But some digging around in a report [PDF] about the lifecycle assessments of paper and polymer banknotes by Bank of Canada shows that the polymer is PET.
The PET-based money is more durable and lasts up to four times longer than the paper bills currently in use. It is also much harder to copy; cleaner because it’s less absorbent, and doesn’t fray or curl at the corners. Because it holds its shape nicely, it causes about 40% fewer jams in ATMs and bill-counting devices. The environment benefits too from the polymer money because treasuries and banks will have to print money less frequently and the polymer notes can be recycled into other products when their time is up.
Michael Posner at The Globe and Mail put together a cool fact sheet about the use of polymers in money. The first polymer banknotes were made in the 1980s to be tested in Costa Rica and Haiti (one wonders why these countries were chosen first).
According to the article:
The man credited with inventing the first fully commercial plastic banknote is David solomon [link is ours], professor of chemical and biomolecular engineering at the University of Melbourne. Commissioned by Australia’s Reserve Bank after a wave of forgeries in the early 1960s, Dr. Solomon spent 21 years developing the polymer-based product. For his work, he later won the prestigious $50,000 Victoria Prize. Australia’s first polymer banknotes were issued, made from a transparent, thermoplastic polymer that is non-fibrous and non-porous.
Posner notes that Canada is a latecomer to the polymer game. About 30 countries use a form of polymer money, including Australia, New Zealand, Indonesia, Malaysia, Brunei, Singapore, Chile, Sri Lanka, Thailand, Kuwait, Mexico, and Romania.
But Eyder Peralta of NPR had the latest & funniest thought about the new money: “Alas, we haven’t found any word on how well the bills would survive a wash-and-dry cycle.”
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