Characteration of Protein Loaded Chitosan Nanoparticles at Different pH Values
文献类型: 外文期刊
第一作者: Liu, Yong
作者: Liu, Yong;Li, Yanli;Xu, Shaochun;Xu, Yaoxing;Sun, Yan
作者机构:
关键词: Chitosan;Bovine Serum Albumin;Nanoparticles;Characterization
期刊名称:MATERIALS AND DESIGN, PTS 1-3
ISSN: 1022-6680
年卷期: 2011 年 284-286 卷
页码:
收录情况: SCI
摘要: In this paper, the properties of chitosan (CS) nanoparticles (CS NPs) and Bovine Serum Albumin (BSA) loaded chitosan nanoparticles (BSA-loaded CS NPs) prepared with sodium tripolyphosphate (TPP) at different pH values were discussed. In addition, BSA encapsulation efficiency, zeta potentials and size of CS NPs and BSA-loaded CS NPs were characterized. The results indicated that sizes of CS NPs presented "V" change along with increase of pH values, while the size of BSA-loaded CS NPs showed "U" shape change. BSA encapsulation efficiency reached the biggest value when the pH value was 5.5. Zeta potentials of CS NPs and BSA-loaded CS NPs kept going down when the pH values were increasing, and positive potential of CS-loaded BSA CS NPs became higher than that of CS NPS when the pH value was more than 5.5. BSA-loaded CS NPs prepared at pH 5.5 exhibited regular and close to spherical in shape under transmission electron microscopy (TEM) sight.
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