Synthesis and antimicrobial effects of colloidal silver nanoparticles in chitosan by -irradiation

被引：29
|
作者：
Dang Van Phu [1 ]
Vo Thi Kim Lang [1 ]
Nguyen Thi Kim Lan [1 ]
Nguyen Ngoc Duy [1 ]
Nguyen Duc Chau [1 ]
Bui Duy Du [2 ]
Bui Duy Cam [3 ]
Nguyen Quoc Hien [1 ]
机构：
[1] Vietnam Atom Energy Commiss, Res & Dev Ctr Radiat Technol, Ho Chi Minh City, Vietnam
[2] Vietnam Natl Inst Sci & Technol, Inst Appl Mat Sci, Hanoi, Vietnam
[3] Vietnam Natl Univ Hanoi, Hanoi Univ Sci, Hanoi, Vietnam
来源：
JOURNAL OF EXPERIMENTAL NANOSCIENCE | 2010年 / 5卷 / 02期
关键词：
silver nanoparticles; chitosan; antimicrobial; -irradiation; REDUCTION;
D O I：
10.1080/17458080903383324
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Radiation-induced synthesis of colloidal silver nanoparticles (Ag-NPs) using chitosan (CTS) as a stabiliser and free radical scavenger is feasible and satisfiable to green method. The conversion dose (Ag+ into Ag0) was determined by UV-Vis spectroscopy and Ag-NPs size was characterised by transmission electron microscopy. The average diameter of Ag-NPs was smaller than 10 nm with narrow size distribution and the colloidal Ag-NPs have good stability for a long time of storage. The effect of several parameters, such as pH, Ag+ and CTS concentration and molecular weight of CTS on Ag-NPs size was also investigated. Ag-NPs of 7 nm exhibited highly antimicrobial effect. The inhibitory efficiency of Ag-NPs for Staphylococcus aureus was more than 99.9% at 5 ppm and the effective dose (ED50) of inhibition for Corticium salmonicolor was of 27.2 ppm.
引用
收藏
页码：169 / 179
页数：11
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