Electrochemical Characterization on the Interaction Between Hemoglobin and NO Molecule

Abstract

Abstract: Nanocrystalline TiO₂ particles film has been considered as an eminent matrix for the immobilization of biomolecules due to its high biocompatiability, high protein loading and special binding ability. The direct electron transfer process of hemoglobin was achieved at nanosized TiO₂ film electrode, in which a well-defined redox peak of hemoglobin could be observed. However, this peak decreased with the presence of NO, indicating the electrochemical activity of hemoglobin was inhibited by the interation between hemoglobin and NO. While the further evidence revealed that such activity could be recovered after releasing NOfrom hemoglobin with electrochemical oxidation method.

Key words: Hemoglobin, NO, Interaction, Electrochemical method, Nanocrystalline, TiO₂-film

CLC Number:

O646

TrendMD:

LI Qing-Wen, GAO Hong, HUANG Hao, WANG Yi-Ming, FENG Jun, LUO Guo-An . Electrochemical Characterization on the Interaction Between Hemoglobin and NO Molecule[J]. Chem. J. Chinese Universities, 2001, 22(8): 1373.

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Electrochemical Characterization on the Interaction Between Hemoglobin and NO Molecule

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