Development of Compact Disk Type Surface Plasmon Resonance Sensor

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A compact disk (CD) type microfluidic device and a rotation device were developed and the flow control based on centrifugal force was evaluated. The introduction sequence of the several solutions into the microchannel could be controlled by changing the rotation speed of the CD. An SPR sensor based on grating coupler was developed and the sensor was successfully applied to the determination of IgA. The SPR sensor developed in this study does not require expensive prism and matching oil. Since the pumps and valves are unnecessary, the sensor would be useful for on-site analysis.