Two new CdII/ZnII coordination polymers as high-efficiency fluorescence sensors for identifying biomarker 3-nitrotyrosine

Two new CdII/ZnII coordination polymers using the bis(pyridyl)-bis(amide) ligand as the main ligand and 1,2,4,5-benzenetetracarboxylic acid (H4BTEC) as the auxiliary ligand were designed and synthesized, which can sensitively detect biomarker 3-nitrotyrosine as fluorescence sensors. They have the advantages of excellent stability, anti-interference, recyclability and low limits of detection.