Highly Sensitive Electrochemical Sensor for the Determination of 8-Hydroxy-2′-deoxyguanosine Incorporating SWCNTs-Nafion Composite Film

Figure 7

(a) Cyclic voltammograms on SWCNTs-Nafion/GCE under different accumulation conditions for 5 min. (A) Without stirring. (B) With stirring. (b) Dependence of the peak current on the volume of SWCNTs-Nafion dispersion. (c) Dependence of the peak current on the accumulation time at SWCNTs-Nafion/GCE. Cyclic voltammetric measurements were performed in pH 7.4 PBS solution containing 5 μM 8-OHdG at a scan rate of 50 mV/s.

(a)

(b)

(c)