Influences of Mg Doping on the Electrochemical Performance of TiO₂ Nanodots Based Biosensor Electrodes

Figure 6

(a) Typical amperometric technique (-) curve of different modified electrodes (with different Mg concentrations (mole ratio): 1%, 2%, 4%, and 6%) after adding H₂O₂ in stirred solution of 0.1 M PBS; (b) calibration plot of response current versus H₂O₂ concentration of different modified electrodes (with different Mg concentrations (mole ratio); 1%, 2%, 4%, and 6%); (c) the sensitivity of different electrodes.

(a)

(b)

(c)