共聚物
热重分析
肿胀 的
纳米复合材料
自愈水凝胶
核化学
高分子化学
材料科学
药物输送
银纳米粒子
化学工程
聚合物
化学
纳米颗粒
有机化学
纳米技术
复合材料
工程类
作者
Horia M. Nizam El‐Din,Doaa M. Ibraheim,Abdel Gawad M. Rabie
标识
DOI:10.1016/j.ijbiomac.2023.123674
摘要
Nanocomposite hydrogels were prepared by gamma-radiation copolymerization of poly (vinyl pyrrolidone) (PVP)/sodium alginate (AG) in the presence of silver nanoparticles (Ag NPs). The effect of irradiation dose and Ag NPs content on the gel content and swelling characters of PVP/AG/Ag NPs copolymers was investigated. In addition, the structure-property behavior of the copolymers was characterized by IR spectroscopy, thermogravimetric analysis (TGA) and x-ray diffraction (XRD). The drug uptake-release characters of PVP/AG/silver NPs copolymers, taking Prednisolone as a model drug, were studied. The study showed that the appropriate dose of gamma irradiation to achieve homogeneous nanocomposites hydrogel films and the highest swelling in water was 30 kGy, regardless of composition. The introduction of Ag NPs up to 5 wt % improved the physical properties and enhanced the drug uptake-release characters.
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