摘要
探讨了白蛋白对表面纳米管处理后的纯钛(nanotubular Ti,NT)中模拟唾液中电化学行为的影响,白蛋白浓度为5g/L。与机械抛光的纯钛(mechanically polished Ti,MPT)相比,白蛋白导致NT的开路腐蚀电位向正方向偏移,而且更加有效地导致其阳极极化行为的变化与腐蚀电流密度的降低。取决于纳米管层性质的表面电容随着浸泡时间的增加而增大。结果表明,纯钛表面的纳米管有利于白蛋白的吸附。
Abstract：The effects of albumin on the electrochemical behavior of nanotubular Ti（NT） in artificial saliva with 5 g/L bovine serum albumin are investigated. Compared to mechanically polished Ti（MPT）, the albumin leads to the more positive shift in the open circuit potential on the nanotubular Ti. Addition of albumin is more effective in altering the anodic polarization behavior and decreasing the corrosion current density. The surface capacitance which depends on the nanotube layer increases with the addition of albumin and the increase of immersion time. The results show that the nanotubular Ti surface has more effective albumin adsorption than others.
出处
《机床与液压》
北大核心
2012年第6期99-110,共12页
Machine Tool & Hydraulics
基金
National Natural Science Foundation of China(31000430)
Key Laboratory of Manufacture and Test Techniques for Automo-bile Parts(Chongqing University of Technology)
Ministry of Education(09-66-04)
关键词
纯钛
电化学
白蛋白
腐蚀
生物材料
Nanotubular Ti
Electrochemistry
Albumin
Corrosion
Biomaterials
