Key points from article :
Bone is a mixture of living and inorganic compounds in a highly structured mineral matrix.
3D printing bone is a challenge within a challenge.
Bioengineers developed a ceramic ink that can be 3D-printed at room temperature with live cells.
Eventually, be used to print bone directly into a patient’s body.
“....print constructs in situ which mimic the structure and chemistry of the bone,” study co-author Iman Roohani.
A biocompatible calcium phosphate material forms a paste at room temperature.
Paste hardens into a porous nanocrystal matrix similar to native bone tissue.
Equipped an off-the-shelf 3D printer, the Hyrel 3D Engine HR, with a custom nozzle.
Can be adapted to portable and handheld printers to be taken into a surgical room.
Cells adhered and proliferated for several weeks after printing with 95% viability.
3D-printed bone technologies are eligible for FDA clearance.
Research by University of New South Wales published in the journal Advanced Functional Materials.