Square-wave protein-film voltammetry: new insights in the enzymatic electrode processes coupled with chemical reactions

Gulaboski, Rubin and Mirceski, Valentin and Lovric, Milivoj (2019) Square-wave protein-film voltammetry: new insights in the enzymatic electrode processes coupled with chemical reactions. Journal of Solid State Electrochemistry. pp. 1-14. ISSN 1432-8488

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Official URL: http://dx.doi.org/10.1007/s10008-019-04320-7

Abstract

Redox mechanisms in which the redox transformation is coupled to other chemical reactions are of significant interest since they are regarded as relevant models for many physiological systems. Protein-film voltammetry, based on surface confined electrochemical processes, is a methodology of exceptional importance, which is designed to provide information on enzyme redox chemistry. In this work, we address some theoretical aspects of surface confined electrode mechanisms under conditions of square-wave voltammetry (SWV). Attention is paid to a collection of specific voltammetric features of a surface electrode reaction coupled with a follow-up (ECrev), preceding (CrevE) and regenerative (EC’) chemical reaction. While presenting a collection of numerically calculated square-wave voltammograms, several intriguing and simple features enabling kinetic characterization of studied mechanisms in time-independent experiments (i.e., voltammetric experiments at a constant scan rate) are addressed. The aim of the work is to help in designing a suitable experimental set-up for studying surface electrode processes, as well as to provide a means for determination of kinetic and/or thermodynamic parameters of both electrode and chemical steps.

Item Type: Article
Subjects: Medical and Health Sciences > Basic medicine
Natural sciences > Biological sciences
Natural sciences > Chemical sciences
Natural sciences > Matematics
Natural sciences > Physical sciences
Divisions: Faculty of Medical Science
Depositing User: Rubin Gulaboski
Date Deposited: 15 Jul 2019 10:31
Last Modified: 15 Jul 2019 10:32
URI: http://eprints.ugd.edu.mk/id/eprint/22254

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