Pan Yunlin, Yang Pengfei, Moloney Mark G, Wang Liang, Ma Feng, Wang Yongqing
School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China.
Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, U.K.
ACS Appl Bio Mater. 2019 Jan 22;2(1):510-517. doi: 10.1021/acsabm.8b00696. Epub 2019 Jan 10.
An amino-substituted bis(aryldiazomethane) was synthesized and used to modify cotton fibers by a carbene insertion reaction. A subsequent amidation of the modified cotton fibers introduced thioether groups onto the surface. Thus, three different types of cotton fibers with hydroxyl, amine, or thioether groups were expected to bind silver nanoparticles (Ag NPs), which were characterized by scanning electron microscopy to show the surface morphology, as well as X-ray photoelectron spectroscopy, energy-dispersive X-ray spectroscopy, and thermogravimetric analysis to quantify the loading of Ag NPs. A bioassay experiment showed antibacterial activity of the modified cotton fibers. The development of these antibacterial cotton fibers not only gave a clear and deep comparison of different silver-binding approaches but also had potential industrial and daily applications for medical textiles.
合成了一种氨基取代的双（芳基重氮甲烷），并通过卡宾插入反应将其用于改性棉纤维。随后对改性棉纤维进行酰胺化反应，在其表面引入硫醚基团。因此，预期三种具有羟基、胺基或硫醚基团的不同类型棉纤维能够结合银纳米颗粒（Ag NPs），通过扫描电子显微镜对其进行表征以显示表面形态，同时利用X射线光电子能谱、能量色散X射线光谱和热重分析对Ag NPs的负载量进行定量。生物测定实验表明改性棉纤维具有抗菌活性。这些抗菌棉纤维的开发不仅对不同的银结合方法进行了清晰而深入的比较，而且在医用纺织品的工业和日常应用中具有潜力。
