A Low-Cost Amperometric Glucose Sensor Based on PCB Technology

The most successful electrochemical sensor is the glucose sensor, which has transformed the management of diabetes. Microfabrication, inkjet and screen printing are used for the realization of electrochemical sensors. However, these can be costly, time-consuming, non-standardized processes, which may be hard to adapt for low-cost mass fabrication. In this paper, we extend our previous work on PCB-based electrochemical sensing, to the realization of amperometric glucose sensors. In vitro results are presented from a multielectrode platform with on-board counter and reference electrodes, in an effort to develop low-cost, PCB-based multiparametric, multi-modal sensor arrays. A sensitivity of 3.13 μAcm^-2 mM^-1 was achieved.