高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (9): 2152.

• 研究论文 • 上一篇    下一篇

磺丁醚-β-环糊精/ Fe3O4杂化的磁性纳米复合体的合成与表征

曹丽燕,王海霞,石娟,周叶红,刘文娟,张国梅,双少敏   

  1. 山西大学化学化工学院,  太原 030006
  • 收稿日期:2011-02-28 修回日期:2011-05-19 出版日期:2011-09-10 发布日期:2011-08-11
  • 通讯作者: 双少敏 E-mail:smshuang@sxu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 90813018)和山西省回国留学人员科研项目基金(批准号: 200820)资助.

Synthesis and Characterization of  Sulfobutylether-β-cyclodextrin/Fe3O4 Hybrid Magnetic Nano-composite

CAO Li-Yan, WANG Hai-Xia, SHI Juan, ZHOU Ye-Hong, LIU Wen-Juan, ZHANG Guo-Mei, SHUANG Shao-Min*   

  1. College of Chemistry and Chemical Engineering, Shanxi University,  Taiyuan 030006, China
  • Received:2011-02-28 Revised:2011-05-19 Online:2011-09-10 Published:2011-08-11
  • Contact: SHUANG Shao-Min E-mail:smshuang@sxu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 90813018)和山西省回国留学人员科研项目基金(批准号: 200820)资助.

摘要: 采用层层自组装法合成了一种新型磺丁醚-β-环糊精/Fe3O4杂化的磁性纳米粒子复合物(SBE-β-CD/Fe3O4 MNP)。β-环糊精与1,4-丁磺酸内酯发生亲核取代反应得到磺丁醚-β-环糊精,柠檬酸进一步修饰磺丁醚-β-环糊精使其具有羧基基团,与阿拉伯胶修饰后的含有氨基的磁性纳米粒子进行脱水缩合制得SBE-β-CD/Fe3O4 MNP。运用透射电镜(TEM)、动态光散射(DLS)、红外光谱法(FTIR)和热重分析(TGA)方法进行表征。证实了Fe3O4 MNP上接枝了SBE-β-CD,根据热重分析曲线(TGA)估算出磁性纳米粒子表面的SBE-β-CD的量约71.8mg/g,及每个Fe3O4磁性纳米粒子结合约93个SBE-β-CD分子。有望作为一种潜在的新型药物载体。

关键词: 磁性纳米粒子,  , 磺丁醚-&beta, -环糊精,  , 纳米复合体

Abstract: A novel magnetic nano-composite from the combination of Fe3O4 magnetic nanoparticles(MNP) and sulfobutylether-β-CD(SBE-β-CD) has been developed. Fabrication of   composite SBE-β-CD/Fe3O4 MNP is based on conjugating the citrate-modified SBE-β-CD onto the gum arabic-modified MNP via carbodiimide activation. The structural property, morphology and hydrodynamic diameter distribution were characterized by X-ray diffraction(XRD), transmission electron microscopy(TEM) and dynamic light scattering(DLS), respectively. The SBE-β-CD grafting was confirmed by Fourier transformation\|infrared spectrometry(FTIR). The amount of SBE-β-CD grafted on   MNP and the number of SBE-β-CD molecules immobilized on each MNP were determined by thermogravimetric analysis(TGA).

Key words: Magnetic nanoparticle, Sulfobutylether-β-cyclodextrin, Nano-composite

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