Figure 5
From: Electrochemical monitoring of an important biomarker and target protein: VEGFR2 in cell lysates

A) DPV curves for detection of different concentrations of VEGFR2 (a) 0, (b) 0.3, (c) 0.4, (d) 0.9, (e) 4.3, (f) 8.6, (g) 43, (h) 65, (i) 86, (j) 103 pM) by using the proposed biosensor and B) calibration curve.
The concentration of thionine was 30 μM.