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. 2023 Mar 7;13(3):355. doi: 10.3390/bios13030355

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© 2023 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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Chronoamperometric signal for SPGE; (a1) different concentrations of monoclonal anti-HER-1; (a2) anti-HER-2 as the capture antibody; (a3) the relative current percentage calculated for each concentration for both HER-1 and HER-2; (b1) different concentrations of polyclonal anti-HER-1; (b2) anti-HER-2 as the detector antibody; (b3) the relative current percentage calculated for each concentration for both HER-1 and HER-2. Standard deviations were calculated for experiments performed in triplicate. In (b1,b2) CT stands for control readings.