Two-Step Protein-Film Voltammetry Associated with Intermediate Reversible Chemical Reaction-Diagnostic Criteria for Characterizing Systems with Inverted Potentials in Square-Wave Voltammetry

Kokoskarova, Pavlinka and Gulaboski, Rubin (2022) Two-Step Protein-Film Voltammetry Associated with Intermediate Reversible Chemical Reaction-Diagnostic Criteria for Characterizing Systems with Inverted Potentials in Square-Wave Voltammetry. Analytical&Bioanalytical Electrochemistry, 14 (3). pp. 270-289. ISSN 2008-4224

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Abstract

Many electron transfer mechanisms of important physiological systems commonly occur as multistep electrode reactions that are initiated by a gain or loss of an electron. The
product of initial electrochemical reaction might subsequently participate in chemical and/or electrochemical reaction(s), in which the final product of entire mechanism is generated. Therefore, a proper understanding of electron transfer phenomena is of outmost importance to get information about mechanism going on in the redox transformation of relevant physiological systems. In this work, we focus on theoretical voltammetric features of complex multielectron surface electrode mechanisms, in which two electron transfer steps are bridged by a reversible chemical reaction. Special attention is paid to systems with so-called “inverted potentials”, in which the second electron transfer requires less energy to occur than the first one. Square-wave voltammetry (SWV) of so-called “surface ECrevE mechanism” is explored as a valuable technique that can give relevant information about diagnostics of this mechanism. The presented model is suitable to study the activity of various enzymes and lipophilic organic compounds by exploring the “protein-film voltammetry” scenario.

Item Type:	Article
Impact Factor Value:	1.38
Subjects:	Medical and Health Sciences > Basic medicine Natural sciences > Chemical sciences Natural sciences > Physical sciences
Divisions:	Faculty of Medical Science
Depositing User:	Rubin Gulaboski
Date Deposited:	03 May 2022 10:22
Last Modified:	03 May 2022 10:22
URI:	https://eprints.ugd.edu.mk/id/eprint/29657

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