Electrochemical Properties of Nitrate Immobilized on Gold Electrodes with 2-aminoethanethiol SAMs

Authors

Ya-ru SONG, Department of Chemistry,Beijing Normal University,Beijing 100875,China;
Hong WU, Department of Chemistry,Beijing Normal University,Beijing 100875,China;
Hui-bo SHAO, Department of Chemistry,Capital Normal University,Beijing 100037,China

Corresponding Author

Hui_bo SHAO

Abstract

Nitrate reductase (NR) and phospholipids were immobilized on gold electrodes with 2_aminoethanethio(AET) SAMs. After Au/AET/NR and Au/AET/NR/lipid were soaked in pH 7 phosphate buffers for days,a pair of pre_reversible peak appeared at around 0.202 V and 0.149 V,respsctively, irregularly grew with soaking time in blank buffer.The cathodic peak current(i pcl )of Au/AET/NR system had linear relationship with scan rate between 0.02 and 0.5 V.s -1 ,while i pcl was proportional to V 1/2 in Au/AET/NR/lipid system.The direct electron transfer of enzyme electrodes was strongly affected by pH.Compared with Au/AET,NR exhibited a higher electrochemical activity in Au/AET/lipid system.

Keywords

Nitrate reductase, Phospholipid, 2_aminoethanethiol SAMs

DOI Link

https://doi.org/10.61558/2993-074X.3302

Publication Date

2002-08-28

Online Available Date

2002-08-28

Revised Date

2002-08-28

Received Date

2002-08-28

Recommended Citation

Ya-ru SONG, Hong WU, Hui-bo SHAO. Electrochemical Properties of Nitrate Immobilized on Gold Electrodes with 2-aminoethanethiol SAMs[J]. Journal of Electrochemistry, 2002 , 8(3): Article 17.
DOI: 10.61558/2993-074X.3302
Available at: https://jelectrochem.xmu.edu.cn/journal/vol8/iss3/17

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