柯德兰
纳米复合材料
纳米颗粒
动态光散射
材料科学
傅里叶变换红外光谱
硝酸银
化学工程
抗菌活性
透射电子显微镜
核化学
纳米技术
银纳米粒子
多糖
化学
有机化学
细菌
遗传学
生物
工程类
作者
Zhixiang Cai,Qiaoyu Dai,Yalong Guo,Yue Wei,Min Wu,Hongbin Zhang
标识
DOI:10.1016/j.ijbiomac.2019.09.018
摘要
Water-soluble glycyrrhiza polysaccharides (GPs), extracted from the root and stem of licorice, were utilized in the photo-induced synthesis of Ag nanoparticles. The size and size distribution, morphology and structures of the Ag nanoparticles were characterized by UV–vis spectroscopy (UV), X-ray diffraction (XRD), transmission electron microscopy (TEM), dynamic light scattering (DLS), and Fourier transform infrared spectroscopy (FT-IR). The results showed that GPs played an essential role in the synthesis and stabilization of Ag particles. The prepared Ag nanoparticles varied in size and shape, dependent on the concentrations of GPs and silver nitrate. The obtained GP-stabilized Ag nanoparticles were incorporated into a biopolymeric film of curdlan as a novel source of potential antibacterial biomaterials. The resulting nanocomposite films exhibited an obvious antibacterial property with uniformly distributed Ag nanoparticles of 20–50 nm. Our results suggest that these nanocomposite films are promising templates for the design of novel antibacterial biomaterials.
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