Fig. 3. (A) Fluorescence behaviors of the CHA-HCR-DNAzyme circuit upon its incubation with various concentrations of DNA initiator. (B) The corresponding calibration curve of the CHA-HCR-DNAzyme circuit. Inset: the resulting linear correlation curve. Here ΔF represents the absolute fluorescence change of the FAM fluorophore. The results are expressed as mean ± SD (n = 5).
