摘要
采用微弧氧化(MAO)方法对近β钛合金Ti-5Zr-3Sn-5Mo-15Nb(TLM)表面进行处理,分析其表面特性变化,并观察成骨细胞在其表面的早期粘附。结果显示微弧氧化处理可以在TLM表面形成一层多孔生物活性氧化层,增大其表面粗糙度并提高其表面湿润性和表面能,该效应与微弧氧化电压有关。此外,电解液中的Ca和P可以被整合到表面氧化层中且其含量随微弧氧化电压升高而增加。体外细胞培养实验发现成骨细胞在微弧氧化表面的早期粘附明显高于抛光表面。
The objective of this study was to modify the surface of a novel near β titanium alloy Ti-5Zr-3Sn-5Mo-15Nb （TLM） by micro-arc oxidation （MAO）. The surface characteristics of the TLM surfaces were analyzed and their effects on rat osteoblasts adhesion in vitro were evaluated. A porous bioactive oxide layer was grown on TLM substrate by MAO process. Both calcium and phosphorus were incorporated into the oxidized surfaces and their content was dependent on the applied voltage. Surface roughness was enhanced on the micro-arc oxidized surfaces, which was higher when the high voltage was applied. Surface wettability and surface energy of the TLM surface were increased by the MAO treatment, which were also related to the applied voltage. Cell culture experiment demonstrated a significant enhanced osteoblasts adhesion on the micro-arc oxidized surfaces.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2009年第A01期201-204,共4页
Rare Metal Materials and Engineering
基金
国家高技术研究发展计划("863"计划)(2002AA326070)
关键词
近Β钛合金
微弧氧化
表面特性
成骨细胞
near β titanium alloy
micro-arc oxidation
surface characteristic
osteoblasts
