Preparation of Ultrathin Multilayer Films Containing Poly(4-vinylpyridine) Complex of Osmium and Horseradish Peroxidase and Its Electrochemical Behavior

Chem. J. Chinese Universities ›› 2001, Vol. 22 ›› Issue (9): 1601.

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Preparation of Ultrathin Multilayer Films Containing Poly(4-vinylpyridine) Complex of Osmium and Horseradish Peroxidase and Its Electrochemical Behavior

LI Wen-Jiang¹, SONG Li-Zhu¹, SUN Chang-Qing¹, WANG Zi-Chen¹, GUO Yu-Peng¹, ZHAO Chun¹, Xu Ying-kai²

1. Department of Chemistry, Jilin University, Changchun 130023, China;
2. Instituteof Chemistry, the Chinese Academy of Sciences, Beijing 100080, China

Received:2000-03-31 Online:2001-09-24 Published:2001-09-24

Abstract

Abstract: We prepared a new kind of multilayer films based on ionic self-assembly technique by successive alternating deposition of positively charged polycation bearing Os complex(PVP-Os) and horseradish peroxidase(HRP) on the surface modified of gold electrode to study the electrochmical behavior and quartz slides to monitor the assembly process by ultraviolet-visible spectroscopy. The electrochemical behavior of the enzyme electrode showed that the multilayer films were stable, electroactive, the mediator PVP-Os as electron shuttle was able to transfer electrons successfully between the active center of the immobilized HRPand the electrode surface.

Key words: Poly(4-vinylpyridine) complex of Osmium, Horseradish peroxidase, Molecular multilayer, Electrical catalysis, Self-assembly

CLC Number:

O657.1

TrendMD:

LI Wen-Jiang, SONG Li-Zhu, SUN Chang-Qing, WANG Zi-Chen, GUO Yu-Peng, ZHAO Chun, Xu Ying-kai. Preparation of Ultrathin Multilayer Films Containing Poly(4-vinylpyridine) Complex of Osmium and Horseradish Peroxidase and Its Electrochemical Behavior[J]. Chem. J. Chinese Universities, 2001, 22(9): 1601.

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Preparation of Ultrathin Multilayer Films Containing Poly(4-vinylpyridine) Complex of Osmium and Horseradish Peroxidase and Its Electrochemical Behavior

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