摘要
采用生物还原法制备生物纳米银(Bio-Ag^0),以透射电子显微镜和紫外-可见吸收光谱对生物纳米银形貌及在水中的稳定分散性进行表征。结果表明,所得生物纳米银颗粒形貌近球形,粒径小于10 nm,相比化学纳米银(Chem-Ag^0),在水溶液中有更强的稳定分散性。以典型革兰氏阴性菌和革兰氏阳性菌为研究对象,对生物纳米银(Bio-Ag^0)和化学纳米银(ChemAg^0)的抗菌性能进行比较,结果表明,Bio-Ag^0对测试细菌表现出更强的抗菌性。
Biogenic silver nanoparticles（Bio-Ag^0） are synthesized via the bio reduction method.The morphology of Bio-Ag^0 and its stable dispersibility in aqueous solution are characterized by means of transmission electron microscopy and ultraviolet-visible spectroscopy.The results show that the Bio-Ag^0 nanoparticles have morphology of subglobose,with particle sizes less than 10 nm.They can well disperse in aqueous solution and exhibit stronger stability than chemically synthesized silver（Chem-Ag^0）.The antibacterial properties of Bio-Ag^0 and Chem-Ag^0 nanoparticles are compared by using typical Gram-negative and Gram-positive bacteria as study targets.It is found that Bio-Ag^0 exhibits more significant antibacterial effect than Chem-Ag^0.
作者
张曼莹
刘姿铔
邬艳君
ZHANG Man-ying;LIU Zi-ya;WU Yan-jun(School of Chemical and Environmental Engineering,Jiangsu University of Technology,Changzhou 213001,China)
出处
《现代化工》
CAS
CSCD
北大核心
2018年第10期109-113,共5页
Modern Chemical Industry
基金
国家自然科学基金青年基金(51508239)
江苏省自然科学基金青年基金(BK20150245)
江苏省"青蓝工程"项目
江苏省研究生科研与实践创新计划项目(SJCX17-0772
SJCX17-0778)
关键词
生物纳米银
稳定性
抗菌性
biogenic silver nanoparticles
stability
antibacterial property
