Preparation and antibacterial activity of silver nanoparticles-decorated graphene composites

Title
Preparation and antibacterial activity of silver nanoparticles-decorated graphene composites
Author(s)
심재진김병극조윤래웬방호아
Keywords
SUPERCRITICAL CARBON-DIOXIDE; ANTIMICROBIAL EFFICACY; OXIDE; NANOCOMPOSITES; NANOTUBES; DELIVERY
Issue Date
201212
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF SUPERCRITICAL FLUIDS, v.72, pp.28 - 35
Abstract
Composites of graphene decorated with silver nanoparticles were simply and efficiently synthesized using supercritical CO2. The nanoparticles were formed on graphene sheets through a simple hydrogen reduction of (1,5-Cyclooctadiene)(hexafluoroacetylacetonato) silver(I) precursor in supercritical CO2. The product was characterized by scanning electron microscopy, transmission electron microscopy, atomic force microscopy, FTIR spectroscopy, X-ray diffraction, UV-visible spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. Highly dispersed nanoparticles of varying size and shape were well adhered to graphene sheets. The composites showed high antibacterial activities against two Gram-negative bacteria Escherichia coli and Listonella anguillarum and two Gram-positive bacteria Bacillus cereus and Staphylococcus aureus. (c) 2012 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/26813http://dx.doi.org/10.1016/j.supflu.2012.08.005
ISSN
0896-8446
Appears in Collections:
공과대학 > 화학공학부 > Articles
생명공학부 > 생명공학부 > Articles
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