Analogue circuit realisation of surface-confined redox reaction kinetics
File(s)
Published version
Author(s)
Tageldeen, MK
Pagkalos, I
Ghoreishizadeh, SS
Drakakis, EM
Type
Journal Article
Abstract
The literature on voltammetry and electrochemical impedance spectroscopy (EIS) recognises the importance of using large-amplitude sinusoidal perturbations to better characterise electrochemical systems. To identify the parameters of a given reaction, various electrochemical models with different sets of values are simulated and compared against the experimental data to determine the best-fit set of parameters. However, the process of solving these nonlinear models is computationally expensive. This paper proposes analogue circuit elements for synthesising surface-confined electrochemical kinetics at the electrode interface. The resultant analogue model could be used as a solver to compute reaction parameters as well as a tracker for ideal biosensor behaviour. The performance of the analogue model was verified against numerical solutions to theoretical and experimental electrochemical models. Results show that the proposed analogue model has a high accuracy of at least 97% and a wide bandwidth of up to 2 kHz. The circuit consumed an average power of 9 μW.
Date Issued
2023-05-15
Date Acceptance
2023-03-01
Citation
Biosensors and Bioelectronics, 2023, 228
ISSN
0956-5663
Publisher
Elsevier
Journal / Book Title
Biosensors and Bioelectronics
Volume
228
Copyright Statement
© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by nc-nd/4.0/).
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000955181300001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
AC voltammetry
Analogue accelerators
AZURIN
Biophysics
Biotechnology & Applied Microbiology
Chemistry
Chemistry, Analytical
DESIGN
EIS
Electrochemistry
ELECTRON-TRANSFER
Fractional-order circuits
Life Sciences & Biomedicine
MODEL
Nanoscience & Nanotechnology
PARAMETERS
Physical Sciences
Science & Technology
Science & Technology - Other Topics
SINUSOIDAL VOLTAMMETRY
STATE-SPACE
Surface-confined reactions
SYSTEM
Weak inversion MOS
Publication Status
Published
Coverage Spatial
England
Article Number
115190
Date Publish Online
2023-03-04