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| 镍钛合金光催化高级氧化表面改性与生物相容性 | |
| 引用本文： | 王如萌,储成林,李艳芬,尹立红,浦跃朴,董寅生,林萍华,朱剑豪.镍钛合金光催化高级氧化表面改性与生物相容性[J].稀有金属材料与工程,2008,37(11). |
| 作者姓名： | 王如萌 储成林 李艳芬 尹立红 浦跃朴 董寅生 林萍华 朱剑豪 |
| 作者单位： | 1. 东南大学,材料科学与工程学院,江苏,南京,211189 2. 东南大学,江苏,南京,211189 3. 香港城市大学,香港 |
| 基金项目： | 国家自然科学基金 ， 教育部跨世纪优秀人才培养计划 ， 江苏省自然科学基金 |
| 摘 要： | 在UV/H2O2光催化体系中,通过高级氧化法在NiTi SMA表面生成贫Ni的Ti氧化膜.通过亲水性试验、血小板黏附试验以及MTT细胞毒性试验对改性后试样的生物相容性进行了系统的评价,研究发现改性后试样的亲水性得到明显改善.表面血小板黏附数量减少,变形和团聚现象得到抑制,形成血栓的可能性降低,血液相容性得到提高.改性后试样的细胞相对增殖率(RGR)高于化学抛光的试样,试样周围细胞分裂增生良好,与材料边缘结合自然,改性处理同样提高了试样的细胞相容性.结果表明光催化高级氧化是提高NiTi SMA生物相容性的一种有效方法. |
| 关 键 词： | NiTi形状记忆合金(NiTi SMA) 高级氧化(AOP) 表面改性 血液相容性 细胞相容性 |
Surface Modification and Biocompatibility of NiTi Shape Memory Alloy Treated with Advanced Oxidation in UV/H_2O_2 Photocatalytic System |
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| Wang Rumeng,Chu Chenglin,Li Yanfen,Yin Lihong,Pu Yaopu,Dong Yinsheng,Lin Pinghua,Paul K.Chu.Surface Modification and Biocompatibility of NiTi Shape Memory Alloy Treated with Advanced Oxidation in UV/H_2O_2 Photocatalytic System[J].Rare Metal Materials and Engineering,2008,37(11). | |
| Authors: | Wang Rumeng Chu Chenglin Li Yanfen Yin Lihong Pu Yaopu Dong Yinsheng Lin Pinghua Paul KChu |
| Affiliation: | Wang Rumeng1,Chu Chenglin1,Li Yanfen1,Yin Lihong1,Pu Yaopu1,Dong Yinsheng1,Lin Pinghua1,Paul K.Chu2 (1.School of Material Science&Engineering,Southeast University,Nanjing 211189,China) (2.City University of Hongkong,Hongkong) |
| Abstract: | Advanced oxidation in UV/H2O2 photocatalytic system could results in the formation of a titanium oxides film depleted of Ni on NiTi shape memory alloy(SMA).In this work,the biocompatibility of advanced oxidized NiTi SMA was systematically investigated by contact angle test,platelet adhesive test and MTT cytotoxicity test.It was found that the wettability of NiTi SMA could be improved by photocatalytic oxidation.The number of platelets on surface modified NiTi SMA was decreased and moreover the phenomena of ... |
| Keywords: | NiTi SMA advanced oxidation surface modification hemocompatibility cytocompatibility |
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