Effects of Direct Current Bias Potentials on Lipid Membranes Forming on a Glassy Carbon Electrode

Authors

Yu-hui LI, University of Chemistry and Chemical Engineering,Graduate School,Chinese Academy of Sciences,Beijing 100049,China,;
Hong-wei ZHANG, University of Chemistry and Chemical Engineering,Graduate School,Chinese Academy of Sciences,Beijing 100049,China,;
Gui-lan SONG, Hebei University of Economics and Business,Shijiazhuang 050061,Hebei,China;
Zhan-jun ZHANG, University of Chemistry and Chemical Engineering,Graduate School,Chinese Academy of Sciences,Beijing 100049,China,;
Sheng-min CAI, College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China,;

Corresponding Author

Zhan-jun ZHANG

Abstract

The effects of direct current(DC) bias voltage on the structure of lipid membranes forming on a glassy carbon electrode(GCE) was investigated by cyclic voltammetry(CV) and electrochemical impedance spectroscopy(EIS).The experiment showed that the lipid membranes can be formed with either positive or negative bias potential exerted.When bias voltage was exerted,bilayer lipid membranes tended to form due to the electrostatic interaction between the superficial positive charges on the polarized electrode and the negative charged part of PC.When the positive bias voltage overrun the range,the lacunas on s-BLMs would increase,and the BLMs would be broken.A proper equivalent circuit was nonlinearly fitted,based on the data obtained from the electrochemical process.The result showed that the values of Ret and Cm represented the nicer state of mutual compensation.

Keywords

bilayer lipid membrane, cyclic voltammetry, electrochemical impedance spectroscopy, direct current bias voltage

DOI Link

https://doi.org/10.61558/2993-074X.1773

Publication Date

2007-02-28

Online Available Date

2007-02-28

Revised Date

2007-02-28

Received Date

2007-02-28

Recommended Citation

Yu-hui LI, Hong-wei ZHANG, Gui-lan SONG, Zhan-jun ZHANG, Sheng-min CAI. Effects of Direct Current Bias Potentials on Lipid Membranes Forming on a Glassy Carbon Electrode[J]. Journal of Electrochemistry, 2007 , 13(1): 6-11.
DOI: 10.61558/2993-074X.1773
Available at: https://jelectrochem.xmu.edu.cn/journal/vol13/iss1/2

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