Analysis of the electron transfer at lipid membrane/water interface by a slab optical waveguide spectroscopy

通过平板光波导光谱分析脂质膜/水界面的电子转移

• 批准号: 21750071
• 负责人: HOTTA Hiroki
• 金额: $ 2.91万
• 依托单位: Nara University of Education (2010)Gunma University (2009)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21750071/
• 关键词: 化学センサー; 脂質膜; 水相界面; 電子移動; 脂質二分子膜; ベシクルフュージョン; 環境応答性色素; 脂溶性抗酸化剤; プロトン移動; 脂質膜/水溶液界面; 水溶液界面

An electron transfer at lipid membrane/water interface was observed by a slab optical waveguide spectroscopy. A lipid membrane was formed on a thin glass plate, into which an excitation light was introduced. Thus, an absorption spectrum of the inside of lipid membrane was selectively observed by an evanescent wave of the guiding light. Curcumin, on of the lipophilic antioxidants, was distributed into the lipid membrane, and the oxidation, i.e. electron transfer reaction through the lipid membrane/water interface between H_2O_2 dissolved in water was observed.

通过平板光波导光谱观察到脂质膜/水界面处的电子转移。在薄玻璃板上形成脂质膜，并在其中引入激发灯。因此，通过引导光的evaneScent波选择性观察到脂质膜内部的吸收光谱。将姜黄素分布在亲脂性抗氧化剂上，分布到脂质膜中，并观察到通过脂质膜/水界面溶解在水中的H_2O_2之间的氧化，即通过脂质膜/水界面的电子转移反应。