Article ID Journal Published Year Pages File Type
602360 Colloids and Surfaces B: Biointerfaces 2008 7 Pages PDF
Abstract

The direct electron-transfer of myoglobin in a new zwitterionic gemini surfactant film with glassy carbon electrode surface has been investigated. A pair of well-defined and quasi-reversible voltammetric peaks was observed at −0.34 and −0.30 V due to the direct electron-transfer of the redox couple of Mb (FeIII/FeII). The voltammetric responses of myoglobin–surfactant film under different pH and scan rate conditions were obtained. The presence of hydrogen peroxide changed the typical electrochemical behaviors in terms of bioelectrocatalysis of myoglobin to hydrogen peroxide, and a higher sensitive electroanalytical method for the determination of hydrogen peroxide has been developed.

Related Topics
Physical Sciences and Engineering Chemical Engineering Colloid and Surface Chemistry
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