Figure 5

Cyclic voltammograms of bare and modified electrodes in pH 7.2 PBS containing 0.14 mM of EP at scan rate of 25 mVs−1 (a) (before background current subtraction); (b–e) (after background current subtraction).

Cyclic voltammograms of bare and modified electrodes in pH 7.2 PBS containing 0.14 mM of EP at scan rate of 25 mVs−1 (a) (before background current subtraction); (b–e) (after background current subtraction).