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Abstract-In this work data are reported on the possibility for detection of environmental contaminants endowed with toxic effects by specifically designed electrochemical biosensors. A new bienzymatic inhibition biosensor based on the combined catalytic activity of the enzymes alkaline phosphatase and glucose oxidase is proposed and discussed for the direct determination of 2,4-dichlorophenoxyacetic acid (2,4-D), one of the most powerful and diffused defoliants, which also is endowed with estrogenic properties. A discussion on the different approaches followed to manage the experimental data obtained by enzymatic inhibition biosensors is also presented.

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In this work data are reported on the possibility for detection of environmental contaminants endowed with toxic effects by specifically designed electrochemical biosensors. A new bienzymatic inhibition biosensor based on the combined catalytic activity of the enzymes alkaline phosphatase and glucose oxidase is proposed and discussed for the direct determination of 2, 4‐dichloro‐phenoxyacetic acid (2, 4‐D), one of the most powerful and diffused defoliants, which also is endowed with estrogenic properties. A discussion on the different approaches followed to manage the experimental data obtained by enzymatic inhibition biosensors is also presented.