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標題: Synthesis, Characterization, and Antibacterial Activity of Silver-Doped Silica Nanocomposite Particles
作者: Chen, G.S.
Chen, C.N.
Tseng, T.T.
Wei, M.H.
Hsieh, J.H.
Tseng, W.J.
關鍵字: Silica;Silver;Composite;Antibacterial Activity;sol-gel method;glass microspheres;nanoparticles;spheres;reduction;immobilization;deposition;resonance;colloids;surface
Project: Journal of Nanoscience and Nanotechnology
期刊/報告no:: Journal of Nanoscience and Nanotechnology, Volume 11, Issue 1, Page(s) 90-97.
Silver nanoparticles were adsorbed preferentially on silica surface to form composite particles using a reverse micelle process that stabilizes the silver particles by an anionic sodium bis(2-ethylhexyl) sulfosuccinate (AOT) surfactant in isooctane solvent together with the silica particles in which their surface being mediated by a cationic poly(allylamine hydrochloride) (PAH) polyelectrolyte. The heterogeneous adsorption was rendered by both electrostatic attraction and hydrophilic/hydrophobic interaction, and was carried out in multiple deposition cycles. The resulting nanocomposite particles were characterized by zeta-potential measurement, electron microscopy, X-ray diffractometry, field-emission electron spectroscopy for chemical analysis (ESCA), and inductively coupled plasma analysis, respectively. In addition, antibacterial activity of the composite particles was examined against Escherichia coli (E. coli) in aqueous environment.
ISSN: 1533-4880
DOI: 10.1166/jnn.2011.3041
Appears in Collections:材料科學與工程學系

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