New fluorescent chemosensors based on mononuclear copper complex for highly selective and sensitive detection of phosphate anion in aqueous solution and living cells

Three new copper complexes were synthesized successfully achieved for the efficient detection of PO43− as turn-on fluorescence chemosensors in DMSO/H2O (v:v = 2:8, Tris-HCl pH = 7.20) with the limit of detection (LOD) as low as 0.029 μM, 0.048 μM, 0.079 μM, respectively.89