Synthesis of a novel glycoconjugated chitosan and preparation of its derived nanoparticles for targeting HepG2 cells

Fwu Long Mi, Yong Yi Wu, Ya Lin Chiu, Mei Chin Chen, Hsing Wen Sung, Shu Huei Yu, Shin Shing Shyu, Mei Feng Huang

研究成果: Article同行評審

61 引文 斯高帕斯(Scopus)

摘要

In the study, a novel chitosan (CS) derivative conjugated with multiple galactose residues in an antennary fashion (Gal-m-CS) was synthesized. A galactosylated CS (Gal-CS) was also prepared by directly coupling lactobionic acid on CS. Using an iontropic gelation method, CS and the synthesized Gal-CS and Gal-m-CS were used to prepare nanoparticles (CS, Gal-CS, and Gal-m-CS NPs) for targeting hepatoma cells. TEM examinations showed that the morphology of all three types of NPs was spherical in shape. No aggregation or precipitation of NPs in an aqueous environment was observed during storage for all studied groups, as a result of the electrostatic repulsion between the positively charged NPs. Little fluorescence was observed in HepG2 cells after incubation with the FITC-labeled CS NPs. The intensity of fluorescence observed in HepG2 cells incubated with the Gal-m-CS NPs was stronger than that incubated with the Gal-CS NPs. These results indicated that the prepared Gal-m-CS NPs had the highest specific interaction with HepG2 cells among all studied groups, via the ligand-receptor-mediated recognition.

原文English
頁(從 - 到)892-898
頁數7
期刊Biomacromolecules
8
發行號3
DOIs
出版狀態Published - 2007 三月

All Science Journal Classification (ASJC) codes

  • 生物工程
  • 生物材料
  • 聚合物和塑料
  • 材料化學

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