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

• Autorzy: Cimpoiasu V.M. , Radulescu F. , Nealson K.H. , Moga Ioana Corina , Popa R.

Identyfikatory

DOI

10.24425/amm.2022.137807

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

sensor; SPEAR; multielectrode; redox interface; sediments; electrochemical gradients

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2022
• Tom: Vol. 67, iss. 2
• Strony: 691--694
• Opis fizyczny: Bibliogr. 19 poz., rys.

Twórcy

autor

Cimpoiasu V.M.

• University of Craiova, Frontier Biology and Astrobiology Research Center, Biology and Environmental Engineering Department, Craiova, 200585, Romania

autor

Radulescu F.

• Portland, OR, 97229

autor

Nealson K.H.

• University of Southern California, Department of Biological Sciences, 3616, Trousdale Parkway, Los Angeles, 90089, USA

autor

Moga Ioana Corina

• DFR Systems SRL, R&D Department, Bucharest, Romania

• https://orcid.org/0000-0003-4633-8480

autor

Popa R.

• DFR Systems SRL, R&D Department, Bucharest, Romania

Bibliografia

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Uwagi

1. This research was funded by NSF, grant number 1638216 and by NASA - Astrobiology Institute, grant number 1611900. This work was supported by a grant of the Romanian Ministry of Education and Research, CCDI - UE-FISCDI, project number PN-III-P2-2.1-PTE-2019-0198, within PNCDI III.

2. Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).