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骨修复用纳米羟基磷灰石/聚酰胺66的体内外生物相容性(英文)
引用本文:杨萌,陈民芳,王昊,李长义.骨修复用纳米羟基磷灰石/聚酰胺66的体内外生物相容性(英文)[J].中国组织工程研究与临床康复,2010,14(8).
作者姓名:杨萌  陈民芳  王昊  李长义
作者单位:1. 天津理工大学材料科学与工程学院,天津市,300384
2. 天津武警医学院附属医院,天津市,300162
3. 天津医科大学口腔医院,天津市,300070
基金项目:国家自然科学基金项目,天津市自然科学基金重点项目(09JCDJC18500) Supported by:the National Natural Science Foundation of China
摘    要:背景:采用基于纳米羟基磷灰石溶胶新方法制备纳米羟基磷灰石/聚酰胺66复合材料,该材料提高了纳米羟基磷灰石在聚酰胺66基体中的均匀分布和二者的有效键合,进而有利于改善材料的生物性能,有望成为新型骨修复材料.目的:评价纳米羟基磷灰石/聚酰胺66复合材料体内外生物相容性.方法:①将原代培养的成骨细胞与纳米羟基磷灰石/聚酰胺66及聚酰胺66材料复合培养,使用倒置相差显微镜和场发射扫描电子显微镜观察材料周围及表面的细胞形态.②将纳米羟基磷灰石/聚酰胺66复合材料植入兔右侧胫骨,将聚酰胺66作为对照组材料植入兔左侧胫骨.在术后2,8周,取材料周围骨组织进行病理组织切片观察.结果与结论:①纳米羟基磷灰石/聚酰胺66和聚酰胺66未表现出明显的细胞毒性,纳米羟基磷灰石,聚酰胺66材料周围细胞形态好于聚酰胺66,且纳米羟基磷灰石僳酰胺66表面细胞数量多于聚酰胺66,在复合培养的第3天差异尤其显著(P<0.01).②在植入早期,与纳米羟基磷灰石僳酰胺66相接的骨组织成骨细胞活跃且该组材料周围的骨形成过程较对照组更快.结果说明纳米羟基磷灰石/聚酰胺66复合材料较聚酰胺66有更好的生物相容性.

关 键 词:纳米羟基磷灰石/聚酰胺66  聚酰胺66  生物相容性  细胞培养  骨修复材料

In vitro and in vivo biocompatibility of nano-hydroxyapatite/polyamide 66 as bone repair material
Yang Meng,Chen Min-fang,Wang Hao,Li Chang-yi.In vitro and in vivo biocompatibility of nano-hydroxyapatite/polyamide 66 as bone repair material[J].Journal of Clinical Rehabilitative Tissue Engineering Research,2010,14(8).
Authors:Yang Meng  Chen Min-fang  Wang Hao  Li Chang-yi
Institution:Yang Meng1,Chen Min-fang1,Wang Hao2,Li Chang-yi 3 1School of Materials Science , Engineering,Tianjin University of Technology,Tianjin 300384,China,2Affiliate Hospital of Medical College of the Chinese People\'s Armed Police Forces,Tianjin 300162,3Stomatological Hospital of Tianjin Medical University,Tianjin 300070
Abstract:BACKGROUND:Nanohydroxyapatite reinforced polyamide 66(n-HA/PA66)prepared using the novel process based on nanohydroxyapatite(n-HA)sol may promote the biocompatibility due to the well distribution of n-HA in the polyamide66(PA66)matrix and chemical bond at organic-inorganic interface.n-HA/PA66 composite has been proposed as a promising bone repair biomaterial.OBJECTIVE:To investigate the biocompatibility of the novel material both in vitro and in vivo.METHODS:Primarily cultured osteoblasts were co-cultured w...
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