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
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
Included in
Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons
