期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 399, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2023.134867
关键词
Covalent organic framework (COF); Aggregation -induced emission; Berberine; Fluorescence
In this study, a covalent organic framework material TaTp-COF with porous and uniform spheres was successfully prepared via hydrothermal reaction, and it was found to significantly enhance the aggregation-induced emission (AIE) of berberine. The unique emission properties of berberine on TaTp-COF were studied and utilized for the sensitive detection of berberine.
In this work, we prepared TaTp-COF, a covalent organic framework material with porous and uniform spheres, by hydrothermally reacting 1,3,5-tris (4-aminophenyl) benzene (TaPb) with terephthalaldehyde (TpTa). TaTp-COF could significantly enhance the aggregation-induced emission (AIE) of berberine (BBR), a natural plant medicine, which was related to the porous structure, the suitable voids, and the hydrogen bonding between TaTp-COF and BBR that could limit the free movement of BBR. The unique emission properties of BBR on TaTp-COF were investigated and used for the sensitive detection of BBR based on the fluorescence intensity of AIE, with a linear range of 10-100 mu mol/L (R2 = 0.9991) and a detection limit of 0.0453 mu;mol/L. Finally, the TaTp-COF was successfully applied to the detection of BBR in real samples, achieving good recoveries and satisfactory relative standard deviations.
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