纳米氧化钛纺织材料抗菌性能的研究

为观察不同含量纳米氧化钛纺织材料对金黄色葡萄球菌和大肠埃希菌的抗菌性能,采用细菌生长的定性和定量抑制试验,测定不同含量的纳米氧化钛纺织材料对金黄色葡萄球菌ATCC25923和大肠埃希菌ATCC25922的抑菌圈直径及抑菌率.结果表明,含0.5%、0.8%、1.5%的纳米氧化钛纺织材料对金黄色葡萄球菌ATCC25923的抑菌圈直径分别为6.6mm、7.1mm和8.1mm,抑菌率则分别为75.13%、88.13%、93.57%;相同浓度的纳米氧化钛纺织材料对大肠埃希菌ATCC25922的抑菌圈直径则分别为6.3mm、6.5mm、7.2mm,抑菌率则为68.97%、73.57%、82.83%.由此得出,含量为0.8%、1.5%的纳米氧化钛纺织材料,对金黄色葡萄球菌ATCC25923的抑菌作用明显大于大肠埃希菌ATCC25922(P<0.05).纳米氧化钛纺织材料对金黄色葡萄球菌和大肠埃希菌具有抗菌作用,且对金黄色葡萄球菌的抗菌作用更为显著.

Studies on Antibacterial Properties of Nanometer Titanium Dioxide Contained Fabrics

In order to determine the antibacterial properties of textile materials containing different amounts of nanometer titanium dioxide,the experiments of the nanometer titanium dioxide-loaded fabrics against S.aureus and E.coli are conducted.With the qualitative and quantitative tests of bacteria inhibition growth,the diameters and antibacterial rates of S.aureus ATCC25923 and E.coli ATCC25922 are determined under the affection of contained different concentrations of nanometer titanium dioxide textile materials.The results shows that S.aureus antibacterial circles' diameters are respectively 6.6 mm,7.1 mm,8.1 mm.Meanwhile,the antibacterial rates are 75.13%,88.13%,93.57%.On the other hand,the E.coli antibacterial circles'diameters are 6.3 mm,6.5mm,7.2 mm,the antibacterial rates are 68.97%,73.57%,82.83% with the same concentrations of nanometer titanium dioxide,respectively.Particularly,the antibacterial effect to S.aureus is greater than its effect to E.coli in the textile materials with 0.8% and 1.5% nanometer titanium dioxides(P<0.05).The textile materials containing nanometer titanium dioxides have excellent antibacterial effect,especially to S.aureus.