This paper proposes the integration of electrochemical detection to micropumps for continuous monitoring of ferrocyanide ions. A homemade device is fabricated using 3D printing and casting techniques with a top and bottom layer of 0.5 mm and 3.0 mm, respectively. The volumetric flow and cyclic voltammetry performances of the device are evaluated at the actuator frequency of 10-50 Hz, in 10 Hz increments at concentrations of 2-10 mM, in 2 mM increments. The fabricated device exhibits maximum flow rate of 0.30405 ml/min in the reverse direction with resonance frequency of 20 Hz. The oxidation peak current at 16.02018 μA of 10 mM potassium ferrocyanide in 1 M potassium nitrate is noted. Among the various concentrations of potassium ferrocyanide, 10 mM of potassium ferrocyanide in 1 M potassium nitrate at the maximum flow rate shows the highest oxidation peak current at 16.02018 μA. The presented device offers the advantage of an affordable miniaturized bedside patient continuous monitoring system, due to its low fabrication cost. Additionally, the disposability nature of the device assures collected samples are unpolluted.
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