Fig. 2From: Dual signal amplification coupling with DNA-templated silver nanoclusters for sensitive and label-free detection of thrombinCharacterization of allosteric probe and DNA polymerase and endonuclease-assisted chain extension. a Fluorescence intensities of the linear allosteric probe and hairpin structure allosteric probe (Ap); b excitation spectra of the DNA-templated AgNCs. c Emission spectra of the DNA-templated AgNCsBack to article page