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Bode plot (a) and Nyquist diagram (b) of the Faradaic impedance measurements of a mannose modified electrode in the presence of different concentrations of K. pneumoniae KCTC 2242 (from 105 to 108 CFU/mL). Impedance spectra were measured within the frequency ranging from 0.1 to 1 kHz at the potential of the [Fe(CN)6]3−/4− redox probe. The amplitude of the alternating voltage was 5 mV.
