Japanese scientists say they’re well on the way to creating custom-made skin, bone, cartilege and joints using 3D bioprinting technology.
The process combines stem cells – proto-cells capable of developing into nearly any body part – and a synthetic substance similar to human collagen which mimics the structure of organs like the tough outer surface and spongy inside of bones and cartilege.
http://3dprint.com/37745/bone-and-tissue-bioprinting/