Bulklike Thermal Behavior of Antibacterial Ag-SiO2 Nanocomposites

被引：30

作者：

Kim, Young Hwan ^{[2
]}

Kim, Chang Woo ^{[1
]}

Cha, Hyun Gil ^{[1
]}

Lee, Don Keun ^{[3
]}

Jo, Byoung Kee ^{[4
]}

Ahn, Gi Woong ^{[4
]}

Hong, Eun Suk ^{[4
]}

Kim, Ju Chang ^{[5
]}

Kang, Young Soo ^{[1
]}

机构：

[1] Sogang Univ, Dept Chem, Seoul 121742, South Korea

[2] GMBU eV, Dept Funct Layers, D-01317 Dresden, Germany

[3] Cheil Ind Inc, Chem R&D Ctr, Jeollanam Do 555210, South Korea

[4] Thefaceshopkorea Co Ltd, R&D Ctr, Inchon 403130, South Korea

[5] Pukyong Natl Univ, Dept Chem, Pusan 608737, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 13期

关键词：

SUPERPARAMAGNETIC COBALT NANOPARTICLES; SILVER NANOPARTICLES; COPPER NANOPARTICLES; METAL NANOPARTICLES; STABILITY; PARTICLES; SURFACE; SILICA; FILMS; CRYSTALLINE;

D O I：

10.1021/jp809892c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Thermal and chemical (antibacterial) properties of Ag nanoparticles deposited on the surface Of SiO2 were studied to know the possibility of applying them as antibacterial materials. To prevent aggregation of Ag nanoparticles and increase their antibacterial abilities, hybrid structures of Ag-SiO2 nanocomposites were synthesized by one-pot sol-gel method. The thermal behavior of Ag-SiO2 nanocomposites were investigated with X-ray powder diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and transmission electron microscopy (TEM). The antibacterial properties of Ag-SiO2 nanocomposites were examined with minimum inhibitory concentration (MIC). The antibacterial property of the nanocomposites shows no significant change below Tammann temperature (e.g., 293 and 573 K), however, it was decreased upon increasing the temperature above Tammann temperature (673 - 1073 K) because of the growth of Ag nanoparticles deposited on the surface of SiO2.

引用

页码：5105 / 5110

页数：6

共 40 条

[1] SPIN PINNING AT FERRITE-ORGANIC INTERFACES [J].