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《High Technology Letters》 2003-12
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in Vitro Study on the Surface Bioactivity of Nano- Hydroxyapatite/Polyamide66 Composite

Peng Xuelin, Li Yubao, Yan Yonggang, Zhang Li, Wei Jie (Research Center for Nano-Biomaterials, Sichuan University, Chengdu 610041)  
The surface bioactivity of PA66 and n-HA/PA66 by soaking in simulated body fluid(SBF) was studied. XRD, FTIR, SEM and ICP were employed to study the surface change and Ca, P concentration change in SBF. In SBF, it was found that HA precipitation and carbonate substituted HA took place at the surface of n-HA/PA66 composite.PA66,compared with n-HA/PA66 composite,had not such precipit ation on its surface. n-HA/PA66 composite has better bioactivity than PA66. n-HA/PA66 composite may be used as bone-repaire and bone-substitute materials in the future.
【Fund】: 863计划 ( 2 0 0 2AADF3 2 0 1);; 国家自然科学基金 ( 3 0 2 70 3 99)资助项目
【CateGory Index】: TB332
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