Figure 6

Selectivity analysis of the biosensor tested in blank solution, 8.6 pM (1 ng mL⁻¹) VEGFR2 protein, 100 ng mL⁻¹ BSA, 50 ng mL⁻¹ VEGF₁₆₅, 50 ng mL⁻¹ VEGF₁₂₁, 50 ng mL⁻¹ VEGFR1 and 50 ng mL⁻¹ VEGFR3, respectively.