Microfluidic structure, microfluidic chip and detection method

A microfluidic chip, comprising a plurality of microfluidic structures, wherein each of the microfluidic structures comprises:

• a first base substrate and a second base substrate opposite to each other;
• an antibody area located between the first base substrate and the second base substrate and storing an enzyme-labeled first antibody;
• a cleaning area storing cleaning liquid;
• a signal substrate area storing a signal substrate solution;
• and
• a detection area with a second antibody and an ion sensitive film fixed thereon;
• wherein
• the enzyme-labeled first antibody comprises a first antibody and an enzyme attached to the first antibody, wherein the first antibody is an antibody matched with a to-be-detected antigen, and the second antibody is an antibody matched with the first antibody;
• all channel areas from the antibody area, the cleaning area and the signal substrate area to the detection area each have a driving electrode structure driving liquid drops to move;
• and
• the detection area has a thin film transistor connected with the ion sensitive film.