Fig. 3

A Schematic of sensitivity detection of miRNA by DSN-assisted cyclic amplification technology based on G-triple structure [14]. B Schematic diagram of the detection of RNase H by the fluorescence sensor based on EAA [39]. C Schematic illustration of sensitive detection of bacterial pathogens using the allosteric probe-initiated catalysis and CRISPR-Cas13a (APC-CAS) system [40]