Poly(vinyl alcohol)/poly(ethylene glycol) 하이드로겔에서의silver nanoparticles의 제조
Preparation of Silver Nanoparticles on the Poly(vinyl alcohol)/ poly(ethylene glycol) Hydrogel
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초록
Silver nano-particles (AgNPs) have attracted much attention for centuries due to theirunique optical properties, electrical conductivities, oxidative catalysis, and antibacterial effect. Inthis study, AgNPs have been prepared by using aqueous AgNO3 solution in the poly(vinyl alcohol)(PVA)/poly(ethylene glycol) (PEG) hydrogels. PVA and PEG powders were dissolved in deionizedwater, and then irradiated by a gamma-ray with a radiation dose of 50 kGy to make hydrogels. PVA/PEG hydrogels were dipped into 1.0×10-2 M AgNO3 solution for 1 hour. After that, theswollen hydrogels were irradiated by gamma-ray for the formation of AgNPs. FE-SEM is used toobserve the formation of AgNPs as a function of the content of PEG and the irradiation dose. Also, AgNPs in the PVA/PEG hydrogels were monitored by UV-Vis. It is observed that thecontent of PEG and gamma-ray irradiation in the hydrogel is crucial to the formation of AgNPs. Finally, antibacterial tests indiacted that the hydrogel containing silver nanoparticle has antibacterialactivity.
Abstract
Silver nano-particles (AgNPs) have attracted much attention for centuries due to theirunique optical properties, electrical conductivities, oxidative catalysis, and antibacterial effect. Inthis study, AgNPs have been prepared by using aqueous AgNO3 solution in the poly(vinyl alcohol)(PVA)/poly(ethylene glycol) (PEG) hydrogels. PVA and PEG powders were dissolved in deionizedwater, and then irradiated by a gamma-ray with a radiation dose of 50 kGy to make hydrogels. PVA/PEG hydrogels were dipped into 1.0×10-2 M AgNO3 solution for 1 hour. After that, theswollen hydrogels were irradiated by gamma-ray for the formation of AgNPs. FE-SEM is used toobserve the formation of AgNPs as a function of the content of PEG and the irradiation dose. Also, AgNPs in the PVA/PEG hydrogels were monitored by UV-Vis. It is observed that thecontent of PEG and gamma-ray irradiation in the hydrogel is crucial to the formation of AgNPs. Finally, antibacterial tests indiacted that the hydrogel containing silver nanoparticle has antibacterialactivity.
참고문헌 (15)
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