One high-nuclearity Yb(III) nanoring with NIR luminescent sensing towards antibiotics and explosives

A 18-metal Yb(III) nanoring was constructed by the using of a Schiff base ligand. It exhibits interesting NIR luminescent sensing behavior to antibiotics and explosives, in particular to NFAs and TNP with high sensitivity. The KSV values and LODs of this lanthanide nanoring to NFAs and TNP are 1.5 × 104–4.6 × 104 (mol/L)−1 and 1.7–5.1 μmol/L, respectively. Its high luminescence sensitivities to NFAs and TNP are not affected by the existence of other antibiotics and explosives.