Gamma-Ray assisted synthesis of silver nanoparticles in chitosan solution and the antibacterial properties
Huang, Nay Ming and Radiman, S. and Lim, H.N. and Khiew, P.S. and Chiu, W.S. and Lee, K.H. and Ahmad, Syahida and Hashim, R. and Chia, C.H. (2009) Gamma-Ray assisted synthesis of silver nanoparticles in chitosan solution and the antibacterial properties. Chemical Engineering Journal, 155 (-). pp. 499-507. ISSN 1385-8947
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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 -irradiation. X-ray diffractometer identified the nanoparticles as pure silver having face-centered cubic phase. Ultraviolet–visible spectra exhibited the influence of -irradiation total absorbed dose and chitosan concentration on the yield of silver nanoparticles. The antibacterial properties of the silver nanoparticleswere tested againstMethicillin-resistant Staphylococcus aureus (MRSA) (grampositive)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.
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