A Study on the Electrical Circuit Model for Impedance-based Microfluidic Sensor

초록

In this paper, we derived the exact impedance parameter for planar electrodes system by varying configuration of electrode area, the distance between electrodes and channel width. The impedance parameters have been experimentally extracted from custom designed microfluidic chip that measures the impedance between two sensing electrodes separated by microfluidic channel. The solution resistance and electrode capacitance were fitted as 31k Omega and 0.339pF for 1mm channel length and 500 x 500 mu m(2) Pt electrodes in PBS solution.

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