In-Channel-Grown Polypyrrole Nanowire for the Detection of DNA Hybridization in an Electrochemical Microfluidic Biosensor

Figure 3

Cyclic voltammograms measured in 0.03 M K₃Fe(CN)₆/K₄Fe(CN)₆ and 0.1 M KCl solution at 25 mV/s scan rate of (a) integrated three-electrode system inside the microchamber using Pt electrode as pseudo-reference electrode and (b) three-electrode system using Ag/AgCl (in saturated KCl) reference electrode in the open cell.