Figure 3.
Standards calibration plots. Calibration plots constructed with the immunosensor (a) and the DNA (b) biosensors for the methylated synthetic sequences of the promoter regions of RASSF1A () and MGMT (
) genes. Amperometric responses obtained with the immunosensor (left) and the DNA sensor (right) in the absence and in the presence of 5.0 nM of the target RASSF1A. Error bars estimated as triple of the standard deviation of three replicates.