A core–shell structure ratiometric fluorescent probe based on carbon dots and Tb3+ for the detection of anthrax biomarker

Hui Heng,Deming Ma,Qingyang Gu,Jinyan Li,Haibo Jin,Ping Shen,Jiaxin Wei,Ziwei Wang

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy（2023）

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摘要

•A core–shell structure ratiometric fluorescent probe for DPA detection was developed.•CDs was acted as internal reference signal, and Tb3+ was acted as responsive signal.•SiO2 shell improve the dispersibility of the probe, increasing the recognition sites.•Visible detection of DPA was realized due to the obvious color change under UV light.

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关键词

Core -shell structure,Anthrax biomarker,Carbon dots,Ratiometric fluorescent probe,Tb3+

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