| Ca/P层对NiTi形状记忆合金生物相容性的影响 |
| |
| 引用本文： | 杨贤金,崔振铎,赵乃勤,宋文静,曾晟宇,朱胜利,姚康德.Ca/P层对NiTi形状记忆合金生物相容性的影响[J].材料研究学报,2000,14(5):481-484. |
| |
| 作者姓名： | 杨贤金 崔振铎 赵乃勤 宋文静 曾晟宇 朱胜利 姚康德 |
| |
| 作者单位： | 1. 天津大学
2. 天津医科大学第二附属医院 |
| |
| 基金项目： | 国家自然科学基金资助项目!59971032 |
| |
| 摘 要： | 用化学法在ＮｉＴｉ形状记忆合金表面修饰了一层Ｃａ／Ｐ层。Ｘ射线分析表明，Ｃａ／Ｐ层的主要成分是Ｃａ５（ＰＯ４）３（ＯＨ），还有少量的α－Ｃａ２Ｐ２Ｏ７和β－Ｃａ３（ＰＯ４）２。原子吸收光谱的测量表明，Ｃａ／Ｐ层抑制镍离子在人体模拟溶液中的溶出。植入试验的结果表明，Ｃａ／Ｐ层改善了ＮｉＴｉ形状记忆合金的生物相容性。
|
| 关 键 词： | NiTi形状记忆合金 Ca／P层 生物相容性 生物材料 |
| 文章编号： | 1005-3003(2000)05-0481-04 |
| 修稿时间： | 2000年3月25日 |
EFFECT ON THE BIOCOMPATIBILITY OF Ca/P COATING LAYER ON NiTi SHAPE MEMORY ALLOY |
| |
| YANG Xianjin,CUI Zhenduo,ZHAO Naiqin,SONG Wenjing,ZENG Shengyu,ZHU Shengli,YAO Kangde.EFFECT ON THE BIOCOMPATIBILITY OF Ca/P COATING LAYER ON NiTi SHAPE MEMORY ALLOY[J].Chinese Journal of Materials Research,2000,14(5):481-484. |
| |
| Authors: | YANG Xianjin CUI Zhenduo ZHAO Naiqin SONG Wenjing ZENG Shengyu ZHU Shengli YAO Kangde |
| |
| Abstract: | For the purpose of improving the biosafety and biocompatibility, a calcium phosphate layer (CPL) was deposited on the Ni-Ti shape memory alloy (SMA) rods. The results showed that the coating layer consisted of hydroxyapatite (HA) mainly and a--Ca2P2O7 and b-Ca3(PO4)2 slightly. Ni ions release stemmed from Ni--Ti alloy into a simulated body fluid (SBF) was retarded, i.e. the release total Ni ions being 0.844ug/cm2 for the modified alloy and 1.586ug/cm2 for the original one respectively. The rats with hydroxyapatite modificated NiTi SMA rod implant encapsulated healed normally in infection cell, fibroblast, collagen secred and capillary blood vessel amounts, aspects, in comparison with original SMA sample. |
| |
| Keywords: | Ni-Ti SMA Ca/P coating layer biocompatibility |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
