Electrocatalytic properties of NDGA and NDGA/FAD hybrid film modified electrodes for NADH/NAD+ redox reaction

被引：31

作者：

Chen, SM ^{[1
]}

Liu, MI ^{[1
]}

机构：

[1] Natl Taiwan Univ Technol, Dept Chem Engn & Biotechnol, Taipei 106, Taiwan

来源：

ELECTROCHIMICA ACTA | 2006年 / 51卷 / 22期

关键词：

NDGA; FAD; film modified electrodes; electrocatalysis; NADH;

D O I：

10.1016/j.electacta.2006.01.014

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The fabrication of monolayers composed of nordihydroguaiaretic acid (NDGA), and hybrid films composed of NDGA-flavin adenine dinucleotide (FAD) adsorbed films was performed in neutral aqueous solutions to produce electrochemically active thin films exhibiting one and two redox couples, respectively. An electrochemical quartz crystal microbalance and cyclic voltammetry were used to study the in situ growth of the NDGA and hybrid NDGA/FAD film monolayers. The NDGA modified film electrocatalytically oxidized NADH, ascorbic acid, dopamine, and N2H4 in neutral aqueous solutions. Well-separated voltammetric peaks were observed for dopamine and uric acid mixtures, and also for ascorbic acid and uric acid mixtures using the NDGA/GC modified electrode. When transferred to various aqueous buffered solutions, the two redox couples of the NDGA/FAD hybrid film and their formal potentials were observed to be pH-dependent. The electrocatalytic oxidation and reduction of NADH and NAD(+) by a NDGA/FAD hybrid film in neutral aqueous solutions was carried out, and the electrocatalytic oxidation of NADH was performed using a NDGA/FAD hybrid film. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：4744 / 4753

页数：10

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