Fig. 1From: A label-free fluorescent biosensor based on specific aptamer-templated silver nanoclusters for the detection of tetracyclineA Secondary structure of Apt76. B Chemical structure of TET. C The highest possible conformation of TET. D Molecular docking of TET with the parent aptamer. E Cluster analysis of the docking results of TET and the parent aptamer. F Hydrogen bonds between Apt76 and TETBack to article page