| 胆红素LB膜的电化学行为研究 |
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| 引用本文： | 白燕,李继革,欧阳健明,郭书好,黄素兰,薛萍.胆红素LB膜的电化学行为研究[J].无机化学学报,2002,18(8):839-843. |
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| 作者姓名： | 白燕 李继革 欧阳健明 郭书好 黄素兰 薛萍 |
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| 作者单位： | 1. 暨南大学化学系,生物矿化工程与结石防治中心,广州,510632
2. 暨南大学化学系,生物矿化工程与结石防治中心,广州,510632宁波市卫生防疫站,宁波,315010 |
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| 基金项目： | 国家自然科学基金，基金重点资助课题(No.20031010) |
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| 摘 要： | 胆红素（BR）是存在于动物体内的一种重要生物物质，也是人和绝大多数哺乳动物体内血红蛋白等含铁卟啉化合物分解代谢的产物和代谢中间体。它是一种内源性抗氧化剂，对肝细胞的再生具有积极的作用，BR常以线状四吡咯或类卟啉结构的形式存在。胆红素及其金属配合物在水溶液犤１～６犦与有机介质（如DMF和DMSO）犤７～９犦中的电化学行为，文献上已有较多报道。前文犤１０～１２犦我们报道了胆红素可在不同亚相（酸性、中性及部分金属离子）表面形成Langmuir－Blodgett（LB膜）；在有磷脂存在时，其成膜性能更佳犤１３犦。由于LB膜同生…
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| 关 键 词： | 胆红素 LB膜 微分脉冲伏安法 |
| 修稿时间： | 2002年2月7日 |
Investigation on Electrochemical Behavior of the Langmuir-Blodgett film of Bilirubin |
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| BAI Yan,LI Ji-Ge,OUYANG Jian-Ming,GUO Shu-Hao,HUANG Su-Lan and XUE Ping.Investigation on Electrochemical Behavior of the Langmuir-Blodgett film of Bilirubin[J].Chinese Journal of Inorganic Chemistry,2002,18(8):839-843. |
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| Authors: | BAI Yan LI Ji-Ge OUYANG Jian-Ming GUO Shu-Hao HUANG Su-Lan and XUE Ping |
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| Institution: | Department of Chemistry, Center of Biomineralization Engineering and Calculi Research, Jinan University, Guangzhou 510632,Department of Chemistry, Center of Biomineralization Engineering and Calculi Research, Jinan University, Guangzhou 510632;Sanitary and Anti-epidemic station of Ningbo, Ningbo 315010,Department of Chemistry, Center of Biomineralization Engineering and Calculi Research, Jinan University, Guangzhou 510632,Department of Chemistry, Center of Biomineralization Engineering and Calculi Research, Jinan University, Guangzhou 510632,Department of Chemistry, Center of Biomineralization Engineering and Calculi Research, Jinan University, Guangzhou 510632 and Department of Chemistry, Center of Biomineralization Engineering and Calculi Research, Jinan University, Guangzhou 510632 |
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| Abstract: | The electrochemical behavior of mixed Langmuir-Blodgett (LB) film of bilirubin and phosphatidyl ethanolamine on glassy carbon electrode were investigated with cyclic voltammetry and differential pulse voltam-metry. The results prove that bilirubin Langmuir-Blodgett film has a cathodic peak of +420mV in 0.2mol·L-1 HAc-NaAc-50%EtOH(pH=5.4) solution. The peak current increases with the layer number of bilirubin LB film in the range of 1 to 12 layers. The resut of the electrochemical behavior of bilirubin in ordered LB film was also compared with that in cast film and in aqueous solution at glassy carbon electrode. We found that bilirubin has the similar electrochemical behavior in LB film to in cast film, but different from that in aqueous solution. |
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| Keywords: | bilirubin langmuir-Blodgett differential-pulse voltammetry |
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