中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Interfacing cytochrome c to Au electrodes with humic acid film

文献类型:期刊论文

作者Xu, JJ; Wang, G; Zhang, Q; Zhou, DM; Chen, HY
刊名ELECTROCHEMISTRY COMMUNICATIONS
出版日期2004-03-01
卷号6期号:3页码:278-283
关键词humic acid microrods cytochrome c direct electron transfer self-assembled monolayer
ISSN号1388-2481
DOI10.1016/j.elecom.2004.01.001
通讯作者Chen, HY()
英文摘要Humic acid (HA) films were formed on a gold electrode surface by the self-assembly method. The HA films were used as an immobilization matrix interfacing cytochrome c (cyt c) to An electrode surface through a dip and phase inversion process. The morphologies of the films, changes of structure and properties of the electrochemistry were investigated by scanning electron microscope (SEM), UV-Vis spectroscopy (UV-Vis) and electrochemical impedance spectroscopy (EIS) and cyclic voltammetry. The results showed that the HA film acted as a good adsorption matrix for cyt c and an excellent accelerant for the redox of cyt c which gives reversible redox peaks with a formal potential of 108 mV vs SCE in pH 7.0 phosphate buffer solution. The average surface coverage of cyt c on the HA film was about 3.49x10(-11) mol/cm(2), indicating a monolayer of cyt c. The electron transfer rate constant was calculated to be 1.0 s(-1). (C) 2004 Elsevier B.V. All rights reserved.
收录类别SCI
WOS关键词CARBON-PASTE ELECTRODE ; SURFACE-ACTIVE SUBSTANCES ; ATOMIC-FORCE MICROSCOPY ; ELECTROCHEMICAL-BEHAVIOR ; AQUEOUS-SOLUTION ; METAL-IONS ; IN-SITU ; MERCURY ; ADSORPTION ; GOLD
WOS研究方向Electrochemistry
WOS类目Electrochemistry
语种英语
WOS记录号WOS:000189124800011
出版者ELSEVIER SCIENCE INC
URI标识http://www.irgrid.ac.cn/handle/1471x/2559353
专题南京土壤研究所
通讯作者Chen, HY
作者单位1.Nanjing Univ, Dept Chem, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China
2.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714
Xu, JJ,Wang, G,Zhang, Q,et al. Interfacing cytochrome c to Au electrodes with humic acid film[J]. ELECTROCHEMISTRY COMMUNICATIONS,2004,6(3):278-283.
APA Xu, JJ,Wang, G,Zhang, Q,Zhou, DM,&Chen, HY.(2004).Interfacing cytochrome c to Au electrodes with humic acid film.ELECTROCHEMISTRY COMMUNICATIONS,6(3),278-283.
MLA Xu, JJ,et al."Interfacing cytochrome c to Au electrodes with humic acid film".ELECTROCHEMISTRY COMMUNICATIONS 6.3(2004):278-283.

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来源:南京土壤研究所

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