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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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Biosensor response of the optimized immunoassay performed using AuNP-Ab-HRP conjugates against various concentrations of; (a) HER-1 antigen (0–0.5 ng mL⁻¹) and (b) HER-2 antigen (0–50 ng mL⁻¹). The embedded graphs show the raw data reading obtained from the chronoamperometry measurements. (c) Linear regression curves for HER-1 and HER-2 AuNP-Ab-HRP conjugate assay, obtained with data taken from Figure 4a,b. Standard deviations were calculated for experiments performed in triplicates (n = 3).

Biosensor response of the optimized immunoassay performed using AuNP-Ab-HRP conjugates against various concentrations of; (a) HER-1 antigen (0–0.5 ng mL⁻¹) and (b) HER-2 antigen (0–50 ng mL⁻¹). The embedded graphs show the raw data reading obtained from the chronoamperometry measurements. (c) Linear regression curves for HER-1 and HER-2 AuNP-Ab-HRP conjugate assay, obtained with data taken from Figure 4a,b. Standard deviations were calculated for experiments performed in triplicates (n = 3).