Research Article

Electrochemically Effective Surface Area of a Polyaniline Nanowire-Based Platinum Microelectrode and Development of an Electrochemical DNA Sensor

Figure 3

(a) CV results of the Pt/PANi NW electrode recorded in K3Fe(CN)6/K4Fe(CN)6 (0.005 M) and 0.1 M KCl solution, at the potential scan rates of 30, 40, 50, 60, 70, and 80 mVs−1; (b) the relationships between the anodic and cathodic peak potentials and and their corresponding linear fit lines: Epa, the green line with square symbols, and Epc, the red line with star symbols; and (c) the relationship between the cathodic peak current (Ipc) and the square root of the scan rate () and its corresponding linear fit line.
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