ZnHA/TiO_2复合涂层的制备及生物相容性
PREPARATION AND BIOCOMPATIBILITY OF ZnHA/TiO_2 HYBRID COATING
查看参考文献26篇
文摘
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为改善羟基磷灰石(HA)涂层与Ti基体的结合性能及成骨性能,在纯Ti表面先通过微弧氧化方法形成多孔TiO_2,然后通过溶胶凝胶法在其上形成ZnHA生物涂层.利用SEM和XRD观察和分析样品的表面形貌和物相组成,采用火焰原子吸收分光光度法测量Zn~(2+)的释放浓度.将MG-63细胞直接接种于样品表面,评价成骨细胞在样品表面的黏附和增殖.噻唑蓝(MTT)比色分析结果表明,细胞在ZnHA/TiO_2-2和ZnHA/TiO_2-3涂层的样品表面增殖率比对照组(HA)显著增加,倒置荧光显微镜下可观察到细胞在改性样品表面黏附和伸展良好.由此表明,带有ZnHA/TiO_2复合涂层的Ti种植体应具有更好的机械结合性能和生物相容性 |
其他语种文摘
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To improve the binding and osteogenic properties for the hydroxyapatite(HA) coating on Ti substrate,a ZnHA biological coating was prepared on commercially pure Ti by sol-gel method after a treatment by micro-arc oxidation(MAO) to produce an porous titania(TiO_2) coating on Ti. The morphologies and phases components of the coating were characterized by SEM and XRD.The release concentration of Zn~(2+) was measured by flame atomic absorption spectrometry. In vitro coculture assays were performed to evaluate the cell proliferation and adhesion of MG-63 cells to the coated Ti.The proliferation rates of the cells were found to be significantly higher on the ZnHA/TiO_2- 2 and ZnHA/TiO_2-3 coatings than that of the control group(HA) by MTT.It was confirmed by the fluorescence microscopy observations that the osteoblast-like cells on the hybrid coating were favorably adhered and spread. The results suggest that the ZnHA/TiO_2 hybrid coatings on Ti implants should possess better binding property and biocompatibility |
来源
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金属学报
,2011,47(4):429-434 【核心库】
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DOI
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10.3724/sp.j.1037.2010.00448
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关键词
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Zn
;
Ti
;
TiO_2
;
羟基磷灰石
;
成骨细胞
;
生物相容性
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地址
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1.
中国医科大学口腔医学院, 沈阳, 110001
2.
大连理工大学材料科学与工程学院, 大连, 116024
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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0412-1961 |
学科
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金属学与金属工艺 |
文献收藏号
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CSCD:4181880
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