一种制备铂支撑自组装双层类脂膜新方法

A New Method for Preparing Self_assembled Lipid Bilayers on Pt Electrode

利 用高功 率超声对 铂电极表 面进行 清洗， 并在 超声 清洗 后的 铂电 极 表面 上形 成 铂支撑自组 装双层 类脂膜（ Ｐｔ＿ Ｂ Ｌ Ｍ） ．该方法 简便快 速，可以制 备较大 面积的双 层类脂 膜，并克服 切割法消耗铂 丝较多 的缺点．研 究表明 用该方 法制 备 的 Ｐｔ＿ Ｂ Ｌ Ｍ 不 仅与 切割 法 制备 的 Ｐｔ＿ Ｂ Ｌ Ｍ 具 有 吻合的电容 值和循 环伏安特 性，而且 还有良好 的稳定 性．

A new method for preparing Pt_supported bilayer lipid membrane(Pt_BLM) on Pt electrode cleaned by high power ultrasound was reported.The reported method was convenient,costing less platinum and could be used to form large_area Pt_BLM as compared with the traditional Pt_wire_cutting method.The electrical properties of Pt_BLM were studied using electrochemical impedance spectroscopy and cyclic voltammetry.Experimental results showed that the values of membrane capacitance and the voltammetric characteristics were consistent with those of Pt_BLM prepared by traditional method.