Fig. 2 | Scientific Reports

Fig. 2

From: An ultrasensitive and selective electrochemical biosensor for Escherichia coli based on bacteria-imprinted polydopamine and a magnetic nanocomposite modifier

Fig. 2

Cyclic voltammograms of (a) bare GCE, (b) dopamine electropolymerization on GCE, (c) after E. coli removal, (d) BIP/GCE after E. coli rebinding, (e) NBIP/GCE after elution, and (f) BIP/MGCE after removing 10⁴ CFU/mL E. coli. All measurements were performed in 0.1 M KCl containing 5 mM [Fe(CN)₆]³⁻/⁴⁻ at a scan rate of 0.1 V/s.

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