摘要
采用液相原位还原法,在聚乙烯吡咯烷酮(PVP)/乙醇溶液中加入硝酸银,制得PVP/银纳米粒子/乙醇溶液,然后加入一定量的PVP/氨水溶液,再加入β-环糊精获得复合溶液。通过静电纺复合溶液得到含有银纳米粒子的三组分复合纳米纤维。利用紫外光谱法对溶胶内的银纳米粒子进行了表征,运用扫描电子显微镜对纤维的形貌和结构进行了表征,并以大肠杆菌为细菌模型,测试了样品的抗菌性能。
In this study,silver salts（AgNO3） are reduced to silver nanoparticles by heating in the ethanol system,then polyvinylrrolidone（PVP）/β-cyclodextrin（β-CDs） solutions containing Ag nanoparticles are formed by ading of aqueous ammonia and β-CDs composite solution.The final product of well-dispersed Ag nanoparticles in PVP/β-CDs composite nanofiber matrices are obtained by using a simple electrospin-ning method.The composites contain three materials： Ag nanoparticles,PVP and β-CDs.The existence of Ag nanoparticles in solution is observed by UV-visible absorption spectra.Scanning electron microscopy（SEM） is used to observe the morphology of composite nanofibers.The antimicrobial properties are inves-tigated by escherichia coli as a model in the work.
出处
《合成纤维》
CAS
2011年第5期16-19,共4页
Synthetic Fiber in China
基金
内蒙古教育厅项目(NJ09070)
关键词
银纳米粒子
纳米纤维
聚乙烯吡咯烷酮
制备
抗菌性能
Ag nanoparticle
nanofiber
polyvinylrrolidone
preparation
antimicrobial property
