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. 2022 May 9;12(5):314. doi: 10.3390/bios12050314

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(a) Schematic illustration of the fabrication process of the electrochemical biosensor for omethoate assay [196]. (b) Schematic illustration of the fabrication process of the electrochemical biosensor for determination of monocrotophos and chlorpyrifos [197].