3.1.5. Applied potential.It is clear that the biosensor response was dependent on the applied potential. In, this part we explored the effect of. The various potentials between − 0.55 and − 0.9 V (with the increments of 0.05 V) on the responses of AG / PyOx / CHIT and AG / PyOx / CHIT - CNT.Bi-enzymatic biosensors. The current response increases when applied potential value was increased and reaches to the maximum. Value when the potential is − 0.70 V. Further increase in the potential caused lower signals in both types of biosensor system. (Fig. 4). Hence − 0.70 V was chosen as the optimum working potential.
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