Fig. 3From: Development of an amperometric sensor for epinephrine determination using an Azure A/silver nanocluster modified electrodeA CVs of the (a) 1st and (b) 100th cycle of AzA/silver nanoclusters modified electrode in 0.1 M PBS. (Sweep rate: 50 mV s−1). B Current response of the AzA/silver nanoclusters modified electrode for a period of 45 days. (Inset: current response of the modified electrode vs time in min)Back to article page