Scientists and physicians at The Feinstein Institute for Medical Research have discovered a way to use MakerBot's 3D-printing technologies to create cartilage and repair tissue damage in the trachea. From the article: "Researchers found that it’s possible to use the MakerBot Replicator 2X Experimental 3D Printer to print what’s called 'scaffolding,' made up of PLA, a bioplastic commonly used in in surgical implant devices. The team customized the printer so that living cells could be printed onto the scaffolding. The 3D-printed mixture of healthy cells found in cartilage, and collagen, eventually grew into the shape of a trachea that could be implanted into a patient."