Abstract
Colchicine is highly toxic to creatures, and sensitively detecting colchicines is of profound significance in the pharmaceutical, clinical, food, and breeding industries. We herein designed and constructed a unique luminescent indium-organic framework {[(CH3)2NH2][In(L)]·9DMF}n (V105) via an in situ ligand-mediated method, which possesses a 2-fold interpenetrated 3D anionic framework. Due to the large channels that exist in the framework with the size of 12 Å × 14 Å, V105 can rapidly remove harmful cationic dyes from water in a few minutes. Importantly, luminescent experiments demonstrate that V105 can selectively detect colchicine with high sensitivity in water, and the limit of detection can reach 1.0 × 10-7 M. To our knowledge, this is the first example of a metal-organic framework-based luminescent sensor for detecting colchicine.
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