【摘要】 为了解抗菌不锈钢的抗菌效果,采用抑菌试验方法和透射电镜进行了观察。结果,含有质量分数3.8%铜的不锈钢片抑菌环试验为0 mm;奎因试验有菌生长;24 h振荡烧瓶试验,金黄色葡萄球菌抑菌率为50.21%,大肠杆菌抑菌率为54.10%。薄膜附着法定量抑菌试验,金黄色葡萄球菌抑菌率为99.17%,大肠杆菌抑菌率为99.15%。电镜观察,经抗菌不锈钢作用后的金黄色葡萄球菌、大肠杆菌形态发生改变。结论,抗菌不锈钢是非溶出性抗菌材料,只有采用薄膜附着法定量抑菌试验才显示出明显的抑菌效果,其它试验方法均不显示出有效的抗菌作用。更多还原

【Abstract】 In order to know the antibacterial efficacy of the antibacterial stainless steel,bacteriostasis test method and transmission electronmicroscopy were used to carry out observation.Results: The result of bacteriostasis ring test for the stainless steet coupon containing 3.8%(m/m) copper was 0 mm.In Quinn test,there was bacteria growth.In 24-h vibrating flask test,the bacteriostasis rates of Staphylococcus aureus and Escherichia coli were 50.21% and 54.10% respectively.In the thin-film adhering quantitative bacteriostasis test,the bacteriostasis rates of Staphylococcus aureus and E coli were 99.17% and 99.15% respectively.Electromicroscopic examination found morphological changes of S.aureus and E.coli exposed to the antibacterial stainless steel.Conclusion: The antibacterial stainless steel is an undissolving antibacterial material and only thin-film adhering quantitative bacteriostasis test can show its antibacterial efficacy,while all other tests can not show its antibacterial effect.更多还原