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|Title:||Preparation, characterization, and antibacterial activity of gamma-irradiated silver nanoparticles in aqueous gelatin|
Ahmad, Mansor B.
Zak, Ali Khorsand
Hosseini, Hasan Ali
|Abstract:||Colloidal silver nanoparticles (Ag-NPs) were obtained through gamma-irradiation of aqueous solutions containing AgNO3 and gelatin as a silver source and stabilizer, respectively. The absorbed dose of gamma-irradiation influences the particle diameter of the Ag-NPs, as evidenced from surface plasmon resonance (SPR) and transmission electron microscopy (TEM) images. When the gamma-irradiation dose was increased (from 2 to 50 kGy), the mean particle size was decreased continuously as a result of gamma-induced Ag-NPs fragmentation. The antibacterial properties of the Ag-NPs were tested against Methicillin-resistant Staphylococcus aureus (MRSA) (Gram-positive) and Pseudomonas aeruginosa (P.a) (Gram-negative) bacteria. This approach reveals that the gamma-irradiation-mediated method is a promising simple route for synthesizing highly stable Ag-NPs in aqueous solutions with good antibacterial properties for different applications.|
|Appears in Collections:||CICECO - Artigos|
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|Preparation characterization and antibacterial activity of γ-irradiated silver nanoparticles in aqueous gelatin_10.1007s12613-013-0743-2.pdf||362.04 kB||Adobe PDF|
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