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脈沖電化學(xué)沉積法制備鈦基HA/Ag復(fù)合涂層
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國家自然科學(xué)基金(30700172)；高等學(xué)校博士學(xué)科點專項科研(新教師)基金(20070613019)；國家科技支撐計劃(2006BAI16B01)


Preparation of HA/Ag Composite Coatings by Pulse Electrochemical Deposition on Titanium Substrate
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    摘要:

    采用脈沖電化學(xué)法在生物醫(yī)用鈦表面制備出納米HA/Ag復(fù)合涂層。借助SEM、XRD等對復(fù)合涂層的形貌、成分進行表征。利用大腸桿菌和白色葡萄球菌兩個菌種對該涂層抗菌性能進行分析研究。最后利用MC3T3-E1成骨細(xì)胞檢測復(fù)合涂層的細(xì)胞相容性。結(jié)果表明：HA/Ag復(fù)合涂層呈納米球狀，由HA和Ag兩相組成。Ag在HA涂層中分布均勻。復(fù)合涂層對兩種細(xì)菌均有較好的抗菌效果，對大腸桿菌抗菌率達100%，對白色葡萄球菌的抗菌率接近100%，對大腸桿菌的抗菌能力高于白色葡萄球菌。細(xì)胞培養(yǎng)實驗表明MC3T3-E1成骨細(xì)胞在HA/Ag復(fù)合涂層表面的黏附、鋪展較好。綜合可知，脈沖電化學(xué)沉積法制備的納米HA/Ag復(fù)合涂層具有較好的抗菌性和細(xì)胞相容性

    Abstract:

    Uniform and dense nano-spherical HA/Ag composite coatings were prepared by a pulse electrochemical deposition method on biomedical titanium surfaces. The coatings were characterized by XRD and SEM. Escherichia coli and Staphylococcus albus were utilized to test the antibacterial ability of the coatings. The cytocompatibility of composite coatings was evaluated by culturing osteoblast MC3T3-E1 on the coatings. The results demonstrate that Ag uniformly distribute in the composite coatings without agglomeration. The coatings have good antibacterial effects on the two types of bacteria. However, they have a better antibacterial effect on Escherichia coli of 100% than on Staphylococcus albus of near 100%. The MC3T3-E1 cell culturing results indicate that the MC3T3-E1 osteoblast has good adhesion and spreading on HA/Ag composite coatings. It is concluded that HA/Ag composite coatings prepared by pulse electrochemical deposition have good antibacterial property and cytocompatibility

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張柏林,王英波,魯 雄,周先禮,屈樹新,馮 波,翁 杰.脈沖電化學(xué)沉積法制備鈦基HA/Ag復(fù)合涂層[J].稀有金屬材料與工程,2010,39(10):1835~1839.[Zhang Bailin, Wang Yingbo, Lu Xiong, Zhou Xianli, Qu Shuxin, Feng Bo, Weng Jie. Preparation of HA/Ag Composite Coatings by Pulse Electrochemical Deposition on Titanium Substrate[J]. Rare Metal Materials and Engineering,2010,39(10):1835~1839.]
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  • 收稿日期:2009-10-15
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