Electron beam induced water-soluble silk fibroin nanoparticles as a natural antioxidant and reducing agent for a green synthesis of gold nanocolloid
作者： Soraya Wongkrongsak , Theeranan Tangthong , Wanvimol Pasanphan
DOI: 10.1016/J.RADPHYSCHEM.2015.03.020
关键词:
摘要: Abstract The research proposes a novel water-soluble silk fibroin nanoparticles (WSSF-NPs) created by electron beam irradiation. In this report, we demonstrate the effects of irradiation doses ranging from 1 to 30 kGy on molecular weight (MW), nanostructure formation, antioxidant activity and reducing power WSSF-NPs. Electron beam-induced degradation SF causing MW reduction 250 37 kDa. Chemical characteristic functions still remained after exposing beam. WSSF-NPs with 37 kDa exhibited spherical morphology nanoscaled size 40 nm. Antioxidant activities powers were investigated using 2,2-diphenyl-1-picrylhryl free radical (DPPH ∙ ) scavenging ferric (FRAP) assays, respectively. showed greater than non-irradiated SF. By increasing their efficiencies, potentially gold nanocolloid. produced would be great merit for uses as natural additive green agent in biomedical, cosmetic food applications.
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