Characterization and antimicrobial activity of silver nanoparticles prepared by a thermal decomposition technique

被引:7
|
作者
Le Thi Tam [1 ]
Vu Ngoc Phan [1 ]
Hoang Lan [1 ]
Nguyen Thanh Thuy [2 ]
Tran Minh Hien [2 ]
Tran Quang Huy [2 ]
Nguyen Van Quy [3 ]
Huynh Dang Chinh [4 ]
Le Minh Tung [5 ]
Pham Anh Tuan [6 ]
Vu Dinh Lam [6 ]
Anh-Tuan Le [1 ]
机构
[1] HUST, AIST, Dept Nanosci & Nanotechnol, Hanoi, Vietnam
[2] NIHE, Hanoi, Vietnam
[3] HUST, ITIMS, Hanoi, Vietnam
[4] HUST, Sch Chem Engn, Hanoi, Vietnam
[5] Tien Giang Univ, Dept Phys, My Tho City, Tien Giang Prov, Vietnam
[6] Vietnam Acad Sci & Technol, Hanoi, Vietnam
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2013年 / 113卷 / 03期
关键词
ANTIBACTERIAL ACTIVITY; NANOCRYSTALS; SHAPE; COLI;
D O I
10.1007/s00339-013-7810-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Recently, there has been an increasing need of efficient synthetic protocols using eco-friendly conditions including low costs and green chemicals for production of metal nanoparticles. In this work, silver nanoparticles (silver NPs) with average particle size about 10 nm were synthesized by using a thermal decomposition technique. Unlike the colloidal chemistry method, the thermal decomposition method developed has advantages such as the high crystallinity, single-reaction synthesis, and easy dispersion ability of the synthesized NPs in organic solvents. In a modified synthesis process, we used sodium oleate as a capping agent to modify the surface of silver NPs because the oleate has a C-18 tail with a double bond in the middle, therefore, forming a kink which is to be effective for aggregative stability. Importantly, the as-synthesized silver NPs have demonstrated strong antimicrobial effects against various bacteria and fungi strains. Electron microscopic studies reveal physical insights into the interaction and bactericidal mechanism between the prepared silver NPs and tested bacteria in question. The observed excellent antibacterial and antifungal activity of the silver NPs make them ideal for disinfection and biomedicine applications.
引用
收藏
页码:613 / 621
页数:9
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