Impedance-Based Miniaturized Biosensor for Ultrasensitive and Fast Prostate-Specific Antigen Detection
Figure 3
Initial test with PSA concentrations in PBS. (a) EIS spectra for: (i) buffer, (ii) 1 pg/ml, (iii) 10 pg/ml, (iv) 1 ng/ml and (v) 10 ng/ml; (b) normalized standard curve for data shown in the Figure 3(a).