纳米碘化银、纳米碘化亚铜及纳米银的制备及抗菌性能研究

The Study on the Preparation and Anti-Bacteria Functions for Nano-AgI, Nano-CuI and Nano-Ag Particles

摘要: 采用弱极性有机溶剂作为反应介质，在有机相中直接制备纳米银、碘化银、碘化亚铜粒子。用滤纸片法分别测定银、碘化银、碘化亚铜三种纳米材料对细菌生长的影响，结果表明三种纳米材料对革兰氏阴性细菌－大肠杆菌和革兰氏阳性细菌－金黄色葡萄球菌均有抑制作用，并且其抑菌能力随着浓度的加大而增强。用平板菌落计数法对金黄色葡萄球菌、大肠杆菌的抑制效果进行了测定，结果表明这三种纳米材料均有较强的抑菌效果，对革兰氏阳性菌（金黄色葡萄球菌）的抑菌能力为：nano-Ag > nano-AgI > nano-CuI；对革兰氏阴性菌（大肠杆菌）的抑菌能力为：nano-Ag ≥ nano-AgI > nano-CuI

Abstract: Using organic solvent in weak polarity as the medium for reaction, we can directly get Nano-Ag, Nano-AgI and Nano-CuI particles. It turns out that those three types of Nano materials have restrain the growth of gram negative bacterium, for instance Escherichia coli, and gram positive bacterium, for instance Staphylococcus aurous, and the ability strengthens with the consistency, when testing the influence of them in the method of filter paper. And these three kinds of Nano materials both have anti-bacteria functions when tested the ability against Escherichia coli and Staphylococcus aurous in planting colony-counting methods. And the ability to restrain gram positive bacterium（Staphylococcus aureus）are as follows：Nano-Ag> Nano-AgI>Nano-CuI; and the ability to restrain gram negative bacterium （Escherichia coli）are as follows： Nano-Ag≥Nano-AgI>Nano-CuI