Biomimetic apatite coating was prepared on chemically modified titanium surface by soaking in supersaturated solution.When sodium polyacrylate was introduced into the solution at 0.48mg/L,crystal size was significantl...Biomimetic apatite coating was prepared on chemically modified titanium surface by soaking in supersaturated solution.When sodium polyacrylate was introduced into the solution at 0.48mg/L,crystal size was significantly reduced,the crystal geometry shifted from flakes to spherilites and made the coating denser.Polyacrylatewas inhibited while also triggered growth of hydroxyapatite crystals.Polyacrylate mimicked the role of organic matrix modulation in biomineralization.展开更多
The apatite-forming ability of titanium oxide film with different structures was investigated in a simulated body fluid(SBF).Three different structures of titanium oxide film were prepared.The dense rutile and amorpho...The apatite-forming ability of titanium oxide film with different structures was investigated in a simulated body fluid(SBF).Three different structures of titanium oxide film were prepared.The dense rutile and amorphous titania gel did not induce apatite formation on their surfaces in SBF solution in 48 hours,whereas the micro porous rutile structure induced apatite formation on their surfaces.This indicates that a specific structure of titania is effective in inducing apatite formation.Such specific structure was assumed in this study to be micro porous structure.The spatially sub micro-scale porous structure of titanium oxide film was an important factor to facilitate the Ca-P nucleation.展开更多
文摘Biomimetic apatite coating was prepared on chemically modified titanium surface by soaking in supersaturated solution.When sodium polyacrylate was introduced into the solution at 0.48mg/L,crystal size was significantly reduced,the crystal geometry shifted from flakes to spherilites and made the coating denser.Polyacrylatewas inhibited while also triggered growth of hydroxyapatite crystals.Polyacrylate mimicked the role of organic matrix modulation in biomineralization.
文摘The apatite-forming ability of titanium oxide film with different structures was investigated in a simulated body fluid(SBF).Three different structures of titanium oxide film were prepared.The dense rutile and amorphous titania gel did not induce apatite formation on their surfaces in SBF solution in 48 hours,whereas the micro porous rutile structure induced apatite formation on their surfaces.This indicates that a specific structure of titania is effective in inducing apatite formation.Such specific structure was assumed in this study to be micro porous structure.The spatially sub micro-scale porous structure of titanium oxide film was an important factor to facilitate the Ca-P nucleation.
