Biomaterials for Bone Regeneration

178 Biomaterials for Bone Regeneration

of 700 µ m. The attached bone marrow stromal cells covered 60% of the

scaffold after 7 days. In a recent publication by Heller et al . (2011), the

concern over the biocompatibility of (meth)acrylate-based monomers and

the resulting degradation products was addressed. They have developed

photopolymers based on low cytotoxic vinyl esters. The chemical structure,

photoreactivity, mechanical properties, and degradation behavior, as well

as the cytotoxicity of the resulting materials were thoroughly evaluated. It

was demonstrated that the degradation behavior can be tuned by adjust-

ing the hydrophilicity of the ...