An inner filter effect-based upconversion fluorescence sensor using TPPS-Co2+ complexes for rapid detection of roxithromycin in food.
An inner filter effect (IFE)-based upconversion fluorescence nanosensor was developed for the sensitive detection of roxithromycin (ROX) residues in food. Core-shell NaYF4,Er@NaYF4 upconversion nanoparticles were used as the fluorescence donor and a tetraphenylporphyrin tetrasulfonic acid cobalt complex (TPPS-Co2+) as...