Biomi metic coating of calciumphosphate on biometallic materials

The biomimetic coating process in comparison with other processes is reviewed. This processing shows advantages in the surface bio-modification, such as low cost and flexible processing, wide range of apatite composition and thickness, non-line-of-sight characteristic and possibility to coat polymers and porous implants. The (bio-)(mimetic) apatite coating is made up of larger number of globules with size of 15μm. Each globule is a group of (numerous) flakes with a size range of 100200nm to 30μm in length and 0.11μm in thickness. In-vitro and (in-vivo) studies show that the biomimetic apatite coating can promote an early and strong bonding to bone or promote the bone in-growth into the porous structure, which will be beneficial to the cementless stable fixation of orthopaedic implants. Recently developed co-precipitation of a kind of protein molecules into the HA coating shows much (promising.)