We basically just need a way to print 3D collagen. We largely know what the structure is, the problem is replicating it. This is compounded because collagen st

We basically just need a way to print 3D collagen. We largely know what the structure is, the problem is replicating it. This is compounded because collagen strength/structure increases after deposition through the action of enzymes that crosslink collagen chains - a problem that would need to be overcome in order to print it