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A customizable wireless potentiostat for assessing Ni(OH)2 decorated vertically aligned MoS2 thin films for electrochemical sensing of dopamine
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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10
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Nanoscale Advances, Volume 7, issue 5, pp. 1374-1383
Abstract
In this study, we show that on-chip grown, vertically aligned MoS2 films that are decorated with Ni(OH)2 catalyst are suitable materials to be applied as working electrodes in electrochemical sensing. The constructed sensors display a highly repeatable response to dopamine, used as a model analyte, in a large dynamic range from 1 μM to 1 mM with a theoretical detection limit of 0.1 μM. In addition, to facilitate practical implementation of the sensor chips, we also demonstrate a low power wireless cyber-physical system that we designed and accommodated for cyclic voltammetry measurements. The developed cost-effective and portable instrument enables straightforward data acquisition, transfer and visualization through an Android mobile interface, and has an accuracy comparable to reference analysis of our sensors using a commercial table-top laboratory potentiostat.
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Publisher Copyright: © 2025 RSC.
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Järvinen, T, Pitkänen, O, Laurila, T, Mannerkorpi, M, Saarakkala, S & Kordas, K 2025, 'A customizable wireless potentiostat for assessing Ni(OH) 2 decorated vertically aligned MoS 2 thin films for electrochemical sensing of dopamine', Nanoscale Advances, vol. 7, no. 5, pp. 1374-1383. https://doi.org/10.1039/d4na00914b