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Electrochemical evaluation of MIP-Ppy and NIP-Ppy layers was performed by the potential pulse sequence. A – potential pulse profile. Typical chronoamperograms (during pulsed amperometric detection) were obtained at: B – MIP-Ppy and C – NIP-Ppy modified Pt electrodes in the absence of SARS-CoV-2-S glycoprotein (•) and in the presence of SARS-CoV-2-S glycoprotein from 5 μg/mL up to 25 μg/mL in PBS solution, pH 7.4 (offset 0.5).
