研究了射频磁控溅射法制备的HA/Ti6Al4V复合材料种植体在模拟体液(Simulated body fluid,SBF)环境下的生物活性。利用扫描电镜(SEM)、能谱分析(EDS)、红外光谱(FTIR)及X-射线衍射(XRD)分析了该种植体涂层在模拟体液中浸泡前后的表面形...研究了射频磁控溅射法制备的HA/Ti6Al4V复合材料种植体在模拟体液(Simulated body fluid,SBF)环境下的生物活性。利用扫描电镜(SEM)、能谱分析(EDS)、红外光谱(FTIR)及X-射线衍射(XRD)分析了该种植体涂层在模拟体液中浸泡前后的表面形貌、界面结合状态、晶体结构和相组成的变化,结果表明:该种植体涂层在模拟体液中存在溶解和新生物质在其表面沉积相伴的过程。其中,HA涂层表面的新生物质是一种缺钙型且含有CO32-的类骨磷灰石,其n(Ca)/n(P)比值约为1.56,晶粒小,结晶度低,接近于非晶态,这与自然骨中无机相的结构成分相似,因此具有良好生物相容性和生物活性。展开更多
Current calcium phosphate ( CaP ) biomaterials for bone repair, substitution, augmentation and regeneration include hydroxyapatite ( HA ) from synthetic or biologic origin, beta-tricaicium phosphate ( β- TCP ),...Current calcium phosphate ( CaP ) biomaterials for bone repair, substitution, augmentation and regeneration include hydroxyapatite ( HA ) from synthetic or biologic origin, beta-tricaicium phosphate ( β- TCP ), biphasic calcium phosphate (BCP), and are available as granules, porous blocks, components of compashes (CaP/pollymer) cements, and as coatings on orthopedic and dental implants. Experimental calcium phosphate biomaterials include CO3^- and F-substituted apatites, Mg-and Zn-substituted β-TCP, calcium phosphate glasses, This paper is a brief review of the different types of CaP biomaterials and their properties such as bioactivity , osteoconductivity , osteoinductivity.展开更多
文摘研究了射频磁控溅射法制备的HA/Ti6Al4V复合材料种植体在模拟体液(Simulated body fluid,SBF)环境下的生物活性。利用扫描电镜(SEM)、能谱分析(EDS)、红外光谱(FTIR)及X-射线衍射(XRD)分析了该种植体涂层在模拟体液中浸泡前后的表面形貌、界面结合状态、晶体结构和相组成的变化,结果表明:该种植体涂层在模拟体液中存在溶解和新生物质在其表面沉积相伴的过程。其中,HA涂层表面的新生物质是一种缺钙型且含有CO32-的类骨磷灰石,其n(Ca)/n(P)比值约为1.56,晶粒小,结晶度低,接近于非晶态,这与自然骨中无机相的结构成分相似,因此具有良好生物相容性和生物活性。
基金Opening Topic Fund of the National Thin Film Key Laboratory of Optoelectronic Engineering Institute of Xi'an Technological University(ZSKJ-200709)Knowledge Innovation Program of Fujian Natural Science Foundation for Youth(2009D013)
文摘Current calcium phosphate ( CaP ) biomaterials for bone repair, substitution, augmentation and regeneration include hydroxyapatite ( HA ) from synthetic or biologic origin, beta-tricaicium phosphate ( β- TCP ), biphasic calcium phosphate (BCP), and are available as granules, porous blocks, components of compashes (CaP/pollymer) cements, and as coatings on orthopedic and dental implants. Experimental calcium phosphate biomaterials include CO3^- and F-substituted apatites, Mg-and Zn-substituted β-TCP, calcium phosphate glasses, This paper is a brief review of the different types of CaP biomaterials and their properties such as bioactivity , osteoconductivity , osteoinductivity.