Synthesis of Monodispersed Ag-Coated SiO2 Nanoparticles with one-Pot Method and Investigation of its Antibacterial Activity
Monodispersed SiO2/Ag core-shell nanoparticles have been synthesized successfully via a facile and fast route. Morphology of the product was investigated by high-resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD) technique. It has been revealed that the diameter of SiO2/Ag compostie was ca. 220 nm and the shell of Ag nanoparticle are homogeneous and monodispersed. The antibacterial activities of SiO2/Ag core-shell nanoparticles were tested by means of minimal inhibitory concentration (MIC) and viable cell counting method. The results showed that the SiO2/Ag presents a good antibacterial performance against Escherichia coli (E. coli), Staphylococcus aureus (S. aureus) and Candida albicans (C. albicans), which indicated its potential applications as antibacterial material for microbiocides.
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
N. C. Zhang et al., "Synthesis of Monodispersed Ag-Coated SiO2 Nanoparticles with one-Pot Method and Investigation of its Antibacterial Activity", Applied Mechanics and Materials, Vols. 117-119, pp. 940-943, 2012