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• W4210491319 endingPage "132533" @default.
• W4210491319 startingPage "132533" @default.
• W4210491319 abstract "• Chromone based Schiff base chemosensor was synthesized and thoroughly characterized. • Fluorescence and colorimetric sensor for Cu 2+ ions. • Job's plot shows 2:1 stoichiometry for complexation with a detection limit of 0.273 × 10 -6 mol L -1 • Validation of sensing mechanism by DFT calculations. • Application studies in different tissues of the liver fluke and the infected and non-infected bovine liver samples. A chromone-based chemosensor Probe 1 was synthesized, and characterized by FTIR, UV-vis, 1 H NMR, 13 C NMR, and mass spectrometric studies. Probe 1 exhibited high selectivity and sensitivity for the Cu 2+ ions over various metal ions (Al 3+ , Cr 3+ , Co 2+ , Cd 2+ , Mn 2+ , Fe 3+ , Ni 2+ , Zn 2+ ) that was investigated by colorimetric, absorption, and fluorescence titrations. The binding mode of Probe 1 with the Cu 2+ ion was derived from Job's plot measurements, and it showed 2:1 stoichiometry. Probe 1 revealed an association constant value of 8.48 × 10 8 M −2 as determined by employing non-linear least square fit data. The detection limit of Probe 1 for the Cu 2+ ion was found to be 0.273 × 10 −6 mol L −1 . Furthermore, Probe 1 was implemented to detect Cu 2+ ions in different tissues of the liver fluke, infected and non-infected bovine liver. DFT studies were performed to support the sensing mechanism. The results of these experiments demonstrate that Probe 1 could be a promising chemosensor for the instant naked eye and fluorescence detection of Cu 2+ ions in different biological samples. Chromone-based Schiff base fluorometric and colorimetric chemosensor for selective detection of Cu 2+ whose working is based on restricted C=N isomerization phenomenon ." @default.
• W4210491319 created "2022-02-08" @default.
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• W4210491319 date "2022-05-01" @default.
• W4210491319 modified "2023-10-01" @default.
• W4210491319 title "A chromone-based colorimetric fluorescence sensor for selective detection of Cu2+ions, and its application for in-situ imaging" @default.
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• W4210491319 doi "https://doi.org/10.1016/j.molstruc.2022.132533" @default.
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