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Characterization and Antibacterial Activity of Zn and Ag Co-incorporated Calcium Silicate Coating

机译：Zn和Ag共同掺入硅酸钙涂层的表征和抗菌活性

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In order to enhance chemical stability along with antibacterial activity, optimized amount of Zn and Ag was co-incorporated into calcium silicate ceramics. Plasma spraying technology was applied for the fabrication of the coating on the Ti-6Al-4V substrate. Transmission electron microscopy (TEM) observation showed that the silver particles of approximate 100 nm homogeneously distributed in the amorphous calcium silicate. Chemical stability was measured by examining mass loss and ion release of the coating in the Tris-HCl buffer solution. With the incorporation of Zn and Ag into the calcium silicate ceramics, the chemical stability of the coating was improved significantly. Not only well chemical stability, but also high antibacterial activity, as high as 99% against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli), was obtained for the coating. The influence of surface topography of the Zn and Ag co-incorporated calcium silicate coating on the bacterial adhesion were investigated.
机译：为了提高化学稳定性以及抗菌活性，将优化的Zn和Ag共同掺入硅酸钙陶瓷中。施加等离子体喷涂技术用于在Ti-6Al-4V基板上制造涂层。透射电子显微镜（TEM）观察显示，在无定形硅酸钙中均匀地分布的近似100nm的银颗粒。通过在Tris-HCl缓冲溶液中检查涂层的质量损失和离子释放来测量化学稳定性。通过将Zn和Ag掺入硅酸钙陶瓷中，涂层的化学稳定性显着提高。不仅可以良好的化学稳定性，而且具有高达99％的抗菌活性，对于涂层，得到高达葡萄球菌的金黄色葡萄球菌和大肠杆菌（大肠杆菌）。研究了Zn和Ag共同掺入硅酸钙涂层对细菌粘附性的表面形貌的影响。

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