Abstract:

The casting method to form dimyristoyl phosphatidyl choline (DMPC) mimetic biomembrane on an Au electrode is proposedThe results of ellipsometer and electrochemical methods confirmed that the film is a compact membrane that can block the electron transferring processp-Dihydroxybenzene can reach the electrode surface and occur redox reactions by passing through transient defects in individual bilayersSuch defects occur in biomembranes and are accentuated by relatively small electric fieldsThe electrochemical behavior of p-dihydroxybenzene in this membrane was also investigated p-Dihydroxybenzene is biologically important molecule because of its function of transferring electrons in lipid layersThis reaction occur in the bionic environment, which provide the useful help to study the real reaction of small molecules in the biological organismsStudies on the electrochemical behavior of p-dihydroxybenzene in the DMPC biomimetic membrane provide useful information for elucidating biological electron transfer processes concerning lipid layers

Key words:

对苯二酚, DMPC, Au电极

摘要：

在金电极上构筑一种双肉豆蔻磷脂酰胆碱(DMPC)仿生浇铸膜。经椭圆偏振仪和电化学方法测量证实，DMPC仿生膜是较为致密的多层膜，同时对苯二酚能够透过DMPC仿生膜到达金电极表面进行氧化反应。结果表明，对苯二酚不仅可在脂质膜中进行电子转移，而且是一种重要的生物分子。反应在仿生环境内进行,也为研究生物小分子在真正的生物体内的反应提供有益的帮助。本文探讨对苯二酚在仿生膜修饰电极上的电化学行为，为生物膜中的电子转移过程提供了十分重要的信息。

关键词:

对苯二酚, DMPC, Au电极