Date Time Scientists use 3D printer to print ‘bone’ with living cells 3D printers may one day become a permanent fixture of the operating theatre after UNSW scientists sh 3D printers may one day become a permanent fixture of the operating theatre after UNSW scientists showed they could print bone-like structures containing living cells. Scientists from UNSW Sydney have developed a ceramic-based ink that may allow surgeons in the future to 3D-print bone parts complete with living cells that could be used to repair damaged bone tissue. Using a 3D-printer that deploys a special ink made up of calcium phosphate, the scientists developed a new technique, known as ‘ceramic omnidirectional bioprinting in cell-suspensions’ (COBICS), enabling them to print bone-like structures that harden in a matter of minutes when placed in water.