Beyond monofunctionality: a pyridinium-derived photochromic Zn-MOF with tetracycline detection/degradation and its Eu/Tb hybrids for visual monitoring and multi-level security

A photochromic pyridinium-Zn MOF enables simultaneous detects, adsorbs, and degrades tetracycline. Eu 3+ /Tb 3+ incorporation enables dual photochromic-fluorescent responses for advanced anti-counterfeiting and on-site detection.