Fig. 4: Selectivity study of the optimized platform.
From: Paper-based electrochemical device for early detection of integrin αvβ6 expressing tumors
a In presence of 2 ng/mL and (b) in presence of 20 ng/mL of αvβ6 (gray bars), α5β1 (green bars) and αvβ3 (orange bars) integrins. The bars are the results of 5 replicates. The dashed red lines indicate the signal observed in absence of targets. The concentrations of integrins have been selected in agreement with the linearity range of the platform.
