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Calcium phosphate film(CaP)is widely applied to metallic implants as a coating material for fast fixation and enhance implant-bone attachment on the account of its demonstrated bioactive and osteoconductive properties.Collagen I is a major organic component of the extracellular matrix(ECM)of bone.In this study,calcium phosphate was first prepared via soaking processes using CaCl2 and DPBS solutions after alkali-treatment of pure Ti.Collagen containing solution was dropped and absorbed on the surface of calcium phosphate film.