Reduction of bacterial adhesion on Ag-TiO2 coatings
Reduction of bacterial adhesion on Ag-TiO2 coatings
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减少 Ag-TiO2 涂层上的细菌粘附
DOI：
10.1016/j.matlet.2018.02.044
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发表时间：
2018
影响因子：
3
通讯作者：
Zhao Qi
中科院分区：
文献类型：
--
作者：
Liu Chen;Geng Lei;Yu Yifan;Zhang Yutong;Zhao Buyun;Zhang Shuai;Zhao Qi
Ag-TiO2纳米复合涂层表现出抗菌活性的协同效应。然而，人们对增强抗菌作用的机制知之甚少。本文采用化学镀技术在钛基体上制备了一系列不同TiO2含量的Ag-TiO2纳米复合涂层，并用E．科利安德S.金黄色葡萄球菌。这项工作首次证明，将TiO2纳米粒子掺入Ag基体中不仅显着促进了Ag离子的释放，而且显着提高了电子供体表面能，从而增强了Ag-TiO2涂层的抗菌效果。
Ag-TiO2nano-composite coatings showed the synergistic effect on the anti-bacterial activity. However, little was known on the mechanism of the enhanced anti-bacterial effect. In this paper, a range of Ag-TiO2nano-composited coating with different TiO2contents were prepared on titanium substrate using an electroless deposition technique and the antibacterial performance of the coatings were evaluated withE. coliandS. aureus. This work demonstrated for the first time that the incorporation of TiO2nano-particles into Ag matrix not only significantly promoted the Ag ion release, but also significantly increased the electron donor surface energy, which lead to the enhanced antibacterial effect of the Ag-TiO2coatings.