Gamma-Ray assisted synthesis of silver nanoparticles in chitosan solution and the antibacterial properties
Document Type
Article
Publication Date
1-1-2009
Abstract
In the present study, chitosan had been utilized as a "green" stabilizing agent for the synthesis of spherical silver nanoparticles in the range of 5-30nm depending on the percentage of chitosan used (0.1, 0.5, 1.0 and 2.0 wt) under gamma-irradiation. X-ray diffractometer identified the nanoparticles as pure silver having face-centered cubic phase. Ultraviolet-visible spectra exhibited the influence of gamma-irradiation total absorbed dose and chitosan concentration on the yield of silver nanoparticles. The antibacterial properties of the silver nanoparticles were tested against Methicillin-resistant Staphylococcus aureus (MRSA) (gram-positive) and Aeromonas hydrophila (gram-negative) bacteria. This work provides a simple and "green" method for the synthesis of highly stable silver nanoparticles in aqueous solution with good antibacterial property.
Keywords
Nanostructures, Electron microscopy, γ-Ray irradiation, Chitosan, Silver
Divisions
PHYSICS
Publication Title
Chemical Engineering Journal
Volume
155
Issue
1-2
Publisher
Elsevier
Additional Information
Huang, N. M. Radiman, S. Lim, H. N. Khiew, P. S. Chiu, W. S. Lee, K. H. Syahida, A. Hashim, R. Chia, C. H.