Chronoamperometric response of the alcohol biosensor for 20 mM alcohol followed by the addition of electroactive interferents such as AC, UA, L-Cysteine and AA, respectively (0.6 V vs. Ag/AgCl electrode). Inset shows the percentage deviation of relative current responses based on (a) 20 mM alcohol signal for 100 μM each of (b) AC, (c) UA and (d) L-Cysteine and 10 μM AA, respectively. Also shown is the blank response (black current). Conditions, as in Figure 3.