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电化学(中英文) ›› 1996, Vol. 2 ›› Issue (4): 385-385. 

• 研究论文 • 上一篇    下一篇

细胞色素c在经预处理的金电极上电化学行为的研究

罗瑾,吴玲玲,黄少华,林仲华   

  1. 厦门大学固体表面物理化学国家重点实验室
  • 收稿日期:1996-11-28 修回日期:1996-11-28 出版日期:1996-11-28 发布日期:1996-11-28

Studies of Electrochemical Behaviors of Cytochrome C on Pretreated Gold ElectrodeReceived 16 May, 1996

Luo Jin * Wu Lingling Huang Shaohua Lin Zhonghua   

  1. (State Key Lab. for Phys. Chem. of the Solid Surf., Dept. of Chem. Xiamen Univ, Xiamen 361005
  • Received:1996-11-28 Revised:1996-11-28 Published:1996-11-28 Online:1996-11-28

摘要: 本文观察到了吸附态和本体态的细胞色素c在经预处理的金电极上的准可逆反应。采用现场FTIR光谱法、紫外可见反射光谱法、循环伏安法、交流阻抗法和电位阶跃法研究了细胞色素c吸附行为和反应动力学。结果表明,细胞色素c能够满单层、不可逆地吸附在金电极表面。在无促进剂存在情况下,吸附的细胞色素c层能够成为溶液相细胞色素c在电极上进行氧化还原反应的电子递体.

关键词: 细胞色素c, 金电极, 电化学活性, 现场光谱法

Abstract: The quasi reversible responses of both adsorbed and bulk cytochrome c at the pretreated gold electrode are observed. The adsorption behaviors and reaction kinetics have been studied using in situ FTIR spectroscopy, UV/Vis reflection spectroscopy, voltammetry, AC impedance and potential step methods. The results show that the cytochrome c can irreversibly adsorb on the gold surface in a complete monolayer and the adsorbed layer can mediate the redox reaction of the cytochrome c in the solution in the absence of promoter.

Key words: Cytochrome c, Gold electrode, Electrochemical activity, In situ spectroscopies

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