Lanthanide-based luminescent metal–organic framework as an optical sensing platform for rapid and reliable assessment of antioxidant activity in food samples
A rapid and sensitive fluorescence-based method for antioxidant capacity assessment was developed using a lanthanide-based metal–organic framework (LVMOF-1). The Eu3+-MOF, incorporating an electron-deficient viologen ligand, enables host–guest interactions with phenolic antioxidants, leading to a quantitative quenching...