等离子体电解氧化
电解质
钛
氧化物
电流密度
磷灰石
锐钛矿
材料科学
化学工程
图层(电子)
氧化钛
无机化学
表面粗糙度
成核
表面光洁度
化学
矿物学
冶金
纳米技术
复合材料
电极
生物化学
有机化学
催化作用
物理化学
物理
量子力学
光催化
工程类
作者
Kihong Shin,Yeon Sung Kim,Haozhe Yang,Young Gun Ko,Dong Hyuk Shin
标识
DOI:10.1016/j.apsusc.2014.06.121
摘要
This study examined the influence of the current density on the surface characteristics and biological response of titanium oxide layers produced by a plasma electrolytic oxidation process. For this purpose, the present processes were carried out under alternating current conditions in a phosphate electrolyte for 300 s at current densities of 100, 150, 200, and 250 mA/cm2. The pore size decreased with decreasing the current density, whereas the mean surface roughness and amount of anatase phase increased. This tendency is considered suitable for the formation of biomimetic apatite and the proliferation of osteoblast cells. The in vitro examinations showed that the formation of biomimetic apatite and the proliferation of osteoblasts on the titanium oxide layer produced at 100 mA/cm2 were highest among the samples evaluated.
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