荧光抗菌染料的制备及其在改性涤纶面料上的应用

为了获得具有荧光及抗菌性能的多功能面料,以萘酰亚胺为主体,以反式-1,2-环己二胺为桥基,分别用氯化苄和溴代十二烷为季铵化试剂,设计合成了双子型季铵盐荧光抗菌染料D1和D2。将其用于改性涤纶织物染色,分别研究了染料和染色织物的荧光及抗菌性能。结果表明,在水溶液中,两支染料在较低浓度时都可以达到10~7数量级的荧光强度,300μmol/L的D1和15μmol/L的D2对大肠埃希菌和金黄葡萄球菌的抑菌率均达到99.99%。D1、D2染色织物也可以达到10~7数量级的荧光强度,其中染料D1质量分数为8%(omf)时对大肠埃希菌和金黄葡萄球菌的抑菌率为68.87%,而染料D2质量分数为6%(omf)时对大肠埃希菌和金黄葡萄球菌的抑菌率就已达到99.99%。季铵化组分为溴代十二烷基的染料D2染色的面料具有更好的荧光性能和抗菌性能。

抗菌染料研究进展

抗菌染料是一种近些年来受到广泛关注的功能性染料,它实现了染色与抗菌性整理的同步进行。本文从抗菌机理、设计合成、抗菌和染色性能等方面分类介绍了最新开发出的抗菌染料。提出了设计抗菌染料的性能要求,对于目前已有的抗菌染料的优缺点也进行了评述。

天然抗菌纤维及其作用机理

本文对天然抗菌纤维，天然抗菌植物染料及天然抗菌剂做了简要的介绍。

天然抗菌纺织品的发展现状

介绍了抗菌纺织品的分类及其抗菌机理,综述了天然抗菌纺织品的发展现状,并分析了天然抗菌纺织品在开发中存在的问题。

Antibacterial Effects of Nanometallic Materials in Genetic Transformation of Anthurium by Agrobacterium-mediated Method

[Objective] This study was conducted to investigate the application of nanometallic materials in inhibiting Agrobacteriurn contamination in genetic transformation of Anthurium. [Method] Different nanometallic materials were added into Agrobacterium medium and Anthurium callus medium, to investigate the effects of their effects on Agrobacterium growth, callus growth and differentiation, and Agrobacterium contamination. [Result] Among the 4 nanometallic materials, NanoAg-2 showed a significant inhibitory effect on the growth of Agrobacterium, with a minimal inhibitory concentration of 25 mg/L. Even for the Anthurium calli or transgenic material contaminated by the Agrobacterium, a good antibacterial effect could be achieved after treating with 25 mg/L NanoAg-2 for 1 d with oscillation, the antibacterial rate reached 100%, and the Anthurium calli could grow and differentiate normally. [Conclusioa] NanoAg-2 could effectively inhibit Agrobacterium contamination, and its an- tibacterial effect is significantly better than cephalosporin and carbenicillin.