Figure 2.

The microfluidic system including the MCC-based ISFET sensor. Four holes were made in an acrylic plate for the inlet (first hole) and outlet (fourth hole) to allow the flow of a measurement solution, for the injection of reagents (second hole), and for the insertion of a reference electrode (third hole). An ISFET sensor was set exactly under the second hole on an acrylonitrile butadiene styrene (ABS) plate, and a button magnet was placed under the sensor area to fix magnetic beads on the gate insulator.