Figure 4.zip

Average threshold voltages were calculated from the transfer curves of different concentrations. The blue line is RBD with MBP antibody, the black line is the main experiment, which is RBD with S1 protein antibody, and the red line is only BSA with S1 protein antibody. Relative current change with different concentrations. ID is the measured drain current, Igate leakage is the current caused by gate leakage, and I0 is the drain current when no antibody is added (pure PBS) as the analyte. At least three samples were measured at each point. The inset indicates the average threshold voltage value.