Fabrication of Antibacterial Biodegradable Films Using a Radiation-induced Reduction Method
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The simple and facile radiation technique of the preparation of antibacterial biodegradablepolymer films containing silver nanoparticles (Ag NPs) was described. The biodegradablepoly(butylene adipate-co-terephthalate) (PBAT) films containing silver trifluoroacetate (AgTFA) were prepared by a solvent casting method, and then the films were irradiated by electronbeams at the various doses ranging from 20 to 200 kGy to form Ag NPs in the biodegradablepolymers. The results of UV-vis and FE-SEM/EDX analyses revealed that the Ag NPs weresuccessfully formed in the PBAT matrix during the electron beam irradiation, and their amountswere dependant on the absorbed dose and Ag TFA concentrations. Furthermore, on the basis ofthe results of the antibacterial test through disk diffusion and colony counting test, the irradiatedPBAT/Ag TFA films exhibited the antibacterial property due to the formation of Ag NPs.
Abstract
The simple and facile radiation technique of the preparation of antibacterial biodegradablepolymer films containing silver nanoparticles (Ag NPs) was described. The biodegradablepoly(butylene adipate-co-terephthalate) (PBAT) films containing silver trifluoroacetate (AgTFA) were prepared by a solvent casting method, and then the films were irradiated by electronbeams at the various doses ranging from 20 to 200 kGy to form Ag NPs in the biodegradablepolymers. The results of UV-vis and FE-SEM/EDX analyses revealed that the Ag NPs weresuccessfully formed in the PBAT matrix during the electron beam irradiation, and their amountswere dependant on the absorbed dose and Ag TFA concentrations. Furthermore, on the basis ofthe results of the antibacterial test through disk diffusion and colony counting test, the irradiatedPBAT/Ag TFA films exhibited the antibacterial property due to the formation of Ag NPs.
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