Gamma-Ray assisted synthesis of silver nanoparticles in chitosan solution and the antibacterial properties
Huang, Nay Ming , Radiman, S., Lim, H.N., Khiew, P.S., Chiu, W.S., Lee, K.H., Ahmad, Syahida, 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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