Direct electrochemistry and electrocatalysis of hemoglobin in lactobionic acid film

✍ Scribed by Hui Zhou; Zhong Chen; Rongwu Yang; Libin Shang; Genxi Li

• Publisher: Wiley (John Wiley & Sons)
• Year: 2005
• Tongue: English
• Weight: 177 KB
• Volume: 81
• Category: Article
• ISSN: 0268-2575
• DOI: 10.1002/jctb.1357

✦ Synopsis

Abstract

Hemoglobin (Hb) embedded in lactobionic acid (LA) film can give a pair of stable, well‐defined, and quasi‐reversible cyclic voltammetric peaks, located at the potential characteristic of the heme Fe(III)/Fe(II) redox couple. The formal potential of the protein in LA film was −209 mV. The apparent heterogeneous electron transfer rate constant and the number of protons concomitant per electron during the electron transfer process have been calculated. Hydrogen peroxide could also be catalytically reduced by the protein in LA film. Copyright © 2005 Society of Chemical Industry