Constraints of the MAX4781 CMOS Solution for Electrode Switching in Multilayer Electrochemical Probes

The most common means to analyze redox gradients in sediments is by push/pulling electrochemical probes through sediment’ strata while repeating measurements. Yet, as electrodes move up and down they disrupt the texture of the sediment layers thus biasing subsequent measurements. This makes it diffi...

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Main Authors: V.M. Cimpoiasu, F. Radulescu, K.H. Nealson, I.C. Moga, R. Popa
Format: Article
Language:English
Published: Polish Academy of Sciences 2022-06-01
Series:Archives of Metallurgy and Materials
Subjects:
Online Access:https://journals.pan.pl/Content/123310/PDF/AMM-2022-2-39-Moga.pdf
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author V.M. Cimpoiasu
F. Radulescu
K.H. Nealson
I.C. Moga
R. Popa
author_facet V.M. Cimpoiasu
F. Radulescu
K.H. Nealson
I.C. Moga
R. Popa
author_sort V.M. Cimpoiasu
collection DOAJ
description The most common means to analyze redox gradients in sediments is by push/pulling electrochemical probes through sediment’ strata while repeating measurements. Yet, as electrodes move up and down they disrupt the texture of the sediment layers thus biasing subsequent measurements. This makes it difficult to obtain reproducible measurements or to study the evolution of electrochemical gradients. One solution for solving this problem is to eliminate actuators and electrode movements altogether, while instead deploying probes with numerous electrodes positioned at various depths in the sediment. This mode of operation requires electrode switching. We discuss an electrode-switching solution for multi-electrode probes, based on Complementary Metal-Oxide-Semiconductor (CMOS) multiplexors. In this solution, electrodes can be individually activated in any order, sequence or time frame through digital software commands. We discuss constraints of CMOS-based multilayer electrochemical probes during cyclic voltammetry.
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spelling doaj.art-163e97ff561d4969960a71c0ed3a9a662022-12-22T01:40:26ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092022-06-01vol. 67No 2691694https://doi.org/10.24425/amm.2022.137807Constraints of the MAX4781 CMOS Solution for Electrode Switching in Multilayer Electrochemical ProbesV.M. Cimpoiasu0F. Radulescu1K.H. Nealson2I.C. Moga3https://orcid.org/0000-0003-4633-8480R. Popa4University of Craiova, Frontier Biology and Astrobiology Research Center, Biology and Environmental Engineering Department, Craiova, 200585, RomaniaPortland, OR, 97229University of Southern California, Department of Biological Sciences, 3616, Trousdale Parkway, Los Angeles, 90089, USADFR Systems SRL, R&D Department, Bucharest, RomaniaDFR Systems SRL, R&D Department, Bucharest, RomaniaThe most common means to analyze redox gradients in sediments is by push/pulling electrochemical probes through sediment’ strata while repeating measurements. Yet, as electrodes move up and down they disrupt the texture of the sediment layers thus biasing subsequent measurements. This makes it difficult to obtain reproducible measurements or to study the evolution of electrochemical gradients. One solution for solving this problem is to eliminate actuators and electrode movements altogether, while instead deploying probes with numerous electrodes positioned at various depths in the sediment. This mode of operation requires electrode switching. We discuss an electrode-switching solution for multi-electrode probes, based on Complementary Metal-Oxide-Semiconductor (CMOS) multiplexors. In this solution, electrodes can be individually activated in any order, sequence or time frame through digital software commands. We discuss constraints of CMOS-based multilayer electrochemical probes during cyclic voltammetry.https://journals.pan.pl/Content/123310/PDF/AMM-2022-2-39-Moga.pdfsensorspearmultielectroderedox interfacesedimentselectrochemical gradients
spellingShingle V.M. Cimpoiasu
F. Radulescu
K.H. Nealson
I.C. Moga
R. Popa
Constraints of the MAX4781 CMOS Solution for Electrode Switching in Multilayer Electrochemical Probes
Archives of Metallurgy and Materials
sensor
spear
multielectrode
redox interface
sediments
electrochemical gradients
title Constraints of the MAX4781 CMOS Solution for Electrode Switching in Multilayer Electrochemical Probes
title_full Constraints of the MAX4781 CMOS Solution for Electrode Switching in Multilayer Electrochemical Probes
title_fullStr Constraints of the MAX4781 CMOS Solution for Electrode Switching in Multilayer Electrochemical Probes
title_full_unstemmed Constraints of the MAX4781 CMOS Solution for Electrode Switching in Multilayer Electrochemical Probes
title_short Constraints of the MAX4781 CMOS Solution for Electrode Switching in Multilayer Electrochemical Probes
title_sort constraints of the max4781 cmos solution for electrode switching in multilayer electrochemical probes
topic sensor
spear
multielectrode
redox interface
sediments
electrochemical gradients
url https://journals.pan.pl/Content/123310/PDF/AMM-2022-2-39-Moga.pdf
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