Fig. 3
From: Target response controlled enzyme activity switch for multimodal biosensing detection
A Schematic diagram of the CEAS visualization protein detection system. B Feasibility validation of the CEAS visualization assay system. C Incubation time optimization of the CEAS visualization assay system. D Colorimetric signal responding to a 100 fM, b 1 pM, c 10 pM, d 100 pM, e 1 nm to f 10 nM of thrombin (from a to f). E Linear correlation between the colorimetric intensity and the logarithm of target concentrations ranging from 10–1 to 104 pM. F Specificity validation of CEAS visualization assay. G Stability validation of CEAS visualization assay. Error bars represent standard deviations of three independent experiments. *P < 0.05, N no statistical difference