National Yang Ming Chiao Tung University

Yun-Sheng Chan

Chen-Yi Lee

A microelectrode device, microfluidic chip, and microfluidic examination method are provided. The microfluidic chip includes a top plate and a microelectrode dot array having several microelectrode devices. Each microelectrode device includes a microfluidic electrode, heating electrode, and control circuit. The control circuit includes a microfluidic control and location sensing circuit, storage circuit, and temperature control circuit. The microfluidic control and location sensing circuit moves a sample within an enabling period of a microfluidic control signal and detects a capacitance value between the microfluidic electrode and the top plate within an enabling period of a location control signal. The storage circuit outputs the capacitance value, reads in the sample operation setup, and reads in the heating control setup within different enabling periods of the clock. The temperature control circuit determines either on or off according to the heating control setup within an enabling period of a heating control signal.

Microelectrode device, microfluidic chip, and microfluidic examination method

A microfluidic test system and method are provided. The microfluidic test system includes a control apparatus and a microfluidic chip. The control apparatus stores a test protocol of a biomedical test. The microfluidic chip includes a top plate and a microelectrode dot array having a plurality of microelectrode devices connected in series. The control apparatus provides a location-sensing signal to the microfluidic chip so that each microelectrode device detects a capacitance value between the top plate and the corresponding microfluidic electrode accordingly. The control apparatus provides a clock signal to the microfluidic chip so that each microelectrode device outputs the corresponding capacitance value accordingly. The control apparatus determines the size and location of a test sample within the microfluidic chip, generates a control signal according to the test protocol, the size, and the location, and provides the control signal to the microfluidic chip.

Growing community of inventors

Hualien, Taiwan

Yun-Sheng Chan