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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (11): 1003-1006.    下一篇

研究通讯

类水滑石诱导囊泡的自发形成

杜娜1, 侯万国*,1,2, 宋淑娥1   

  1. (1山东大学胶体与界面化学教育部重点实验室 济南 250100)
    (2山东大学山东省胶体材料工程技术研究中心 济南 250100)
  • 投稿日期:2006-12-05 修回日期:2007-01-10 发布日期:2007-06-14
  • 通讯作者: 侯万国

Spontaneous Formation of Vesicle Induced by Hydrotalcite-like Compounds

DU Na1; HOU Wan-Guo*,1,2; SONG Shu-E1   

  1. (1 Key Laboratory for Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100)
    (2 Engineering Research Center for Colloid Materials of Shandong Province, Shandong University, Jinan 250100)
  • Received:2006-12-05 Revised:2007-01-10 Published:2007-06-14
  • Contact: HOU Wan-Guo

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被引次数

4 | 1

报道了一种新的囊泡合成方法——荷电固体纳米颗粒诱导囊泡的自发形成. 研究发现, 将5.0 g/L带结构正电荷的Mg3Al类水滑石(HTlc)溶胶和0.02 mol/L由两性表面活性剂十二烷基甜菜碱(C12BE)和阴离子表面活性剂双(2-乙基己基)琥珀酸磺酸钠(AOT)组成的溶液(C12BE与AOT物质的量比为3∶2)混合, 当HTlc溶胶与表面活性剂溶液的体积比在1∶9～4∶6范围内, 在HTlc纳米颗粒的诱导下可自发形成囊泡, 并获得稳定的HTlc-囊泡复合分散体系.

关键词: 囊泡, 类水滑石, 两性表面活性剂, 阴离子表面活性剂

The spontaneous formation of vesicle induced by charged solid nanoparticle was reported. When mixing 5.0 g/L Mg3Al hydrotalcite-like compound (HTlc) sol and 0.02 mol/L surfactant solution of zwitterionic surfactant, dodecyl betaine (C12BE), and anionic surfactant, sodium bis(2-ethylhexyl) sulfosuccinate (AOT), with molar ratio of C12BE to AOT equal to 3∶2, it was found that Mg3Al HTlc nanoparticles with structural positive charges may induce spontaneous formation of vesicles in the volume ratio range of the HTlc sol to the surfactant solution from 1∶9 to 4∶6, and a stable HTlc-vesicle composite was formed. The obtained HTlc-vesicle composite was characterized by negative-staining TEM and dynamic light scattering. Some HTlc nanoparticles were possi-bly enveloped in vesicles.

Key words: vesicle, hydrotalcite-like compound, zwitterionic surfactant, anionic surfactant