| 杂多酸K7Fe^3^+P2W17O62H2对硫醇-磷脂杂化双层膜通透性的影响 |
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| 引用本文： | 王建国,滕人瑞,汪尔康.杂多酸K7Fe^3^+P2W17O62H2对硫醇-磷脂杂化双层膜通透性的影响[J].化学学报,2001,59(12):2138-2142. |
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| 作者姓名： | 王建国 滕人瑞 汪尔康 |
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| 作者单位： | 中国科学院长春应用化学研究所.长春(130022);中国科学院电分析化学国家重 点实验室;中国科学院近代物理研究所.兰州(730000) |
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| 基金项目： | 国家自然科学基金(29835120)资助项目 |
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| 摘 要： | 利用涂抹冷冻法制备了硫醇-磷脂杂化双层膜，采用循环伏安和交流阻抗方法，研究了硫醇-磷脂杂化双层膜与杂多酸K7Fe^3^+P2W17O62H2作用前后通透性的变化，发现该种杂多酸能够诱导硫醇-磷脂杂化双层膜产生一些孔洞，降低了膜电阻，增加了膜电容，也增加了探针Fe(CN)^3-/4-~6与电极的电子传递。同时对产生该现象的机理进行了初步的探讨。
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| 关 键 词： | 杂多酸 硫醇 磷脂 磷酸盐 钨酸盐 铁化合物 钾化合物 循环伏安法 |
| 修稿时间： | 2001年4月29日 |
Influence of a kind of polyanion to hybrid bilayer membranes |
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| Wang Jianguo,Teng Renrui,Wang Erkang.Influence of a kind of polyanion to hybrid bilayer membranes[J].Acta Chimica Sinica,2001,59(12):2138-2142. |
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| Authors: | Wang Jianguo Teng Renrui Wang Erkang |
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| Institution: | Changchun Inst Appl Chem., CAS.Changchun(130022);Inst of Modern Phys. , CAS.Lanzhou(730000) |
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| Abstract: | Hybrid bilayer membrane consisting of self-assembled alkanethiol and lipid monolayer on gold electrode was fabricated by the paint-freeze method. The interaction of a kind of polyanion, K7Fe^3^+P2W17O62H2 with such bilayer membrane was investigated by cyclic voltammetry and ac impedance. The hybrid bilayer membrane on the gold electrode showed remarkable insulationg property, however, the property was lessened to some extent after interaction with the polyanion. It was found the process was irreversible. It is presumed that the interaction between the polyanion and lipid is an interaction fo K7Fe^3^+P2W17O62H2 with the polar head group of PC, which lessens the interaction among PC polar head groups. The resulting molecular arrangement becomes looser, even some pores are produced. |
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| Keywords: | HETEROPOLYACID MERCAPTAN PHOSPHOLIPID PHOSPHATE TUNGSTATE IRON COMPOUNDS POTASSIUM COMPOUNDS CYCLOVOLTAMGRAPH |
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