Preparation of an electrode that immobilizes NAD-dependent alcohol dehydrogenase by using a redox polymer containing 1,10-phenanthroline-5,6-dione

Motoyama Y; Nakamura N; Ohno H

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Preparation of an electrode that immobilizes NAD-dependent alcohol dehydrogenase by using a redox polymer containing 1,10-phenanthroline-5,6-dione

机译：通过使用包含1,10-菲咯啉-5,6-二酮的氧化还原聚合物制备固定NAD依赖的醇脱氢酶的电极

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摘要

A redox polymer (PAHA-Ru), modified electrode exhibited excellent catalytic activity for the electrochemical oxidation of beta-nicotinamide adenine dinucleotide (NADH). PAHA-Ru was composed of carboxyl groups and ruthenium complexes containing 1,10-phenanthroline-5,6-dione (phen-dione). The stability of the PAHA-Ru film was increased by incorporating poly(diallyldimethylammonium chloride) (PDDA) owing to the formation of a polyelectrolyte complex between the PAHA-Ru and PDDA. The catalytic efficiency of the oxidation of NADH using the PAHA-Ru/PDDA-modified electrode was also greater than that using a PAHA-Ru-modified electrode. NAD-dependent alcohol dehydrogenase (ADH) was entrapped in the PAHA-Ru/PDDA film on the surface of the glassy carbon electrode. Electrochemical oxidation of ethanol using the ADH-entrapped electrode was also observed.

机译：氧化还原聚合物（PAHA-Ru）修饰电极对β-烟酰胺腺嘌呤二核苷酸（NADH）的电化学氧化表现出出色的催化活性。 PAHA-Ru由羧基和含有1,10-菲咯啉-5,6-二酮（phen-dione）的钌配合物组成。由于在PAHA-Ru和PDDA之间形成了聚电解质络合物，因此通过加入聚二烯丙基二甲基氯化铵（PDDA）可以提高PAHA-Ru膜的稳定性。使用PAHA-Ru / PDDA修饰的电极对NADH的氧化催化效率也高于使用PAHA-Ru修饰的电极。 NAD依赖性醇脱氢酶（ADH）被困在玻碳电极表面的PAHA-Ru / PDDA膜中。还观察到使用夹有ADH的电极对乙醇的电化学氧化。

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《Electroanalysis》 |2008年第8期|共4页
作者
Motoyama Y; Nakamura N; Ohno H;
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正文语种 eng
中图分类电化学、电解、磁化学;
关键词
redox polymer; NADH; 1; 10-phenanthroline-5; 6-dione; alcohol dehydrogenase; electrocatalysis; MULTILAYERS; MONOLAYER; CHLORIDE; QUINONE; FILMS;

机译：氧化还原聚合物;NADH;1;10-菲咯啉-5;6-二酮;醇脱氢酶;电催化;多层;单分子膜;氯化物;醌;薄膜;

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机译：通过使用包含1,10-菲咯啉-5,6-二酮的氧化还原聚合物制备固定NAD依赖的醇脱氢酶的电极
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Preparation of an electrode that immobilizes NAD-dependent alcohol dehydrogenase by using a redox polymer containing 1,10-phenanthroline-5,6-dione

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