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AZ31镁合金表面层层组装PSS/GS膜的体外耐蚀与抗菌性能(英文)

发布时间:2022-12-17 22:57
  为提高镁合金的耐蚀性,并且使其表面具有抗菌功能,从而抑制生物膜的形成和生物腐蚀,利用原位水热法在AZ31镁合金基体上制备氢氧化镁膜以及层层组装制备硫酸庆大霉素(GS)和聚苯乙烯磺酸钠(PSS)多层膜。利用扫描电子显微镜、傅里叶红外光谱、X射线光电子能谱、电化学测试和浸泡实验研究(PSS/GS)nMg复合膜层的表面形貌、化学成分和耐腐蚀性能。最后,通过抑菌圈实验和平板计数法评定(PSS/GS)nMg样品抵抗金黄葡萄球菌的性能。结果表明,在镁合金表面制备的复合膜层表现出较好的耐蚀和抗菌性能。这种复合膜层可用作医疗植入器件涂层。 

【文章页数】:12 页

【文章目录】:
1 Introduction
2 Experimental
    2.1 Materials and chemicals
    2.2 Preparation of composite coatings
    2.3 Surface characterization
    2.4 Electrochemical measurements and hydrogen evolution
    2.5 Antibacterial assays
3 Results and discussion
    3.1 SEM images of composite film on substrate
    3.2 FTIR spectra
    3.3 XPS spectra
    3.4 Corrosion characterization
    3.5 Morphology observation after immersion test
    3.6 In vitro activity of films against S. aureus
4 Conclusions


【参考文献】:
期刊论文
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