rallymatte writes "A team at Fraunhofer Institute in Germany has managed to create artificial blood vessels with a 3D printer that may come to be used for transplants of lab-created organs. From the article: 'To print something as small and complex as a blood vessel, the scientists combined the 3D printing technology with two-photon polymerisation — shining intense laser beams onto the material to stimulate the molecules in a very small focus point.'"
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