| Keggin型杂多酸H3PMo12O40对磷脂双层膜电化学行为的影响 |
| |
| 引用本文： | 马勇,霍俊杰,惠飞,王建国,韩正波,臧树良.Keggin型杂多酸H3PMo12O40对磷脂双层膜电化学行为的影响[J].辽宁大学学报(自然科学版),2006,33(2):97-100. |
| |
| 作者姓名： | 马勇 霍俊杰 惠飞 王建国 韩正波 臧树良 |
| |
| 作者单位： | 辽宁大学,化学科学与工程学院,辽宁,沈阳,110036 |
| |
| 基金项目： | 国家自然科学基金项目（20271024） |
| |
| 摘 要： | 利用循环伏安法和交流阻抗谱，以铂电极支撑的磷脂双层膜（s-BLM）作为生物膜的模型，Fe（CN）6^3-和Fe（CN）6^4-为探针分子，研究了Keggin型杂多酸H3 PMo12 O40对磷脂双层膜电化学行为的影响，结果显示s-BLM与杂多酸H3PMo12 O40之间可以发生比较强烈的相互作用，使8-BLM的通透性发生变化．这种现象的出现可能是由予在杂多酸H3PMo12O40与磷脂双层膜发生作用时引起s-BLM表面分子的排列变化，进而在膜的表面形成不可逆的微孔，而探针分子Fe（CN）6^3-/4-可以通过这些微孔接近电极，产生氧化还原响应。
|
| 关 键 词： | 杂多酸 循环伏安法 交流阻抗谱 s-BLM |
| 文章编号： | 1000-5846（2006）02-0097-04 |
| 收稿时间： | 2005-11-24 |
| 修稿时间： | 2005-11-24 |
The Influence of Keggin Type Phosphomolybdic Acid on Electrochemical Behavior of Lipid Bilayer Membranes |
| |
| MA Yong,HUO Jun-jie,HUI Fei,WANG Jian-guo,HAN Zheng-bo,ZANG Shu-liang.The Influence of Keggin Type Phosphomolybdic Acid on Electrochemical Behavior of Lipid Bilayer Membranes[J].Journal of Liaoning University(Natural Sciences Edition),2006,33(2):97-100. |
| |
| Authors: | MA Yong HUO Jun-jie HUI Fei WANG Jian-guo HAN Zheng-bo ZANG Shu-liang |
| |
| Abstract: | The influence of Keggin type phosphomolybdic acid (H_ 3PMo_ 12O_ 40)_ on electrochemical behavior of lipid bilayer membranes as a biology membrane model was investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Experiments showed that the interaction between H_3PMo_ 12O_ 40 and lipid membranes leaded to Fe(CN) 3-/4-_6 crossing of the s-BLM. This phenomenon was to suggested that some kinds of pores forming on the surface of membrane which decreased membrane resistibility to the probing molecules resulted from the interaction between H_3PMo_ 12O_ 40 and lipid menbranes. This may be helpful to understand the biological activity and medical chemistry of polyoxometalates in vivo. |
| |
| Keywords: | polyoxometalates cyclic voltammetry impedance spectroscopy s - BLM |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
