A fluorescent dual-emissions UiO-66-NH2@TpTt-COF core-shell composite for sensitive and optosmart sensing of tetracycline

Chunhua Li, Xiao Xu, Jiayu Xing,Fuli Wang,Yubo Shi,Xin Zhao,Jue Liu,Ying Yang,Zhilei Zhao

APPLIED SURFACE SCIENCE（2023）

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摘要

•NH2 of UiO-66-NH2 covalent bonding linkage with CHO of TpTt-COF.•UiO-66-NH2 attenuates the aggregation-caused quenching effect of TpTt-COF.•Benzene ring of TpTt-COF and tetracycline interact recognition by π-π stacking.•Fluorescence quenching via N/O of UiO-66-NH2@TpTt-COF and OH/NH2 of tetracycline.•LOD of 7.4 nmol/L and recoveries of 88.58–104.31% are achieved.

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关键词

Antibiotics,Covalent-organic framework,Environmental hazards,Fluorescence detection,Metal-organic framework,Smartphone

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