A Simple and Rapid “Turn-On” Fluorescent Probe Based on Binuclear Schiff Base for Zn2+ and Its Application in Cell Imaging and Test Strips DOI Creative Commons
Jinghui Cheng,

Yi Li,

Zhiye Zhu

и другие.

Molecules, Год журнала: 2024, Номер 29(24), С. 5850 - 5850

Опубликована: Дек. 11, 2024

A series of colorful binuclear Schiff bases derived from the different diamine bridges including 1,2- ethylenediamine (bis-Et-SA, bis-Et-4-NEt2, bis-Et-5-NO2, bis-Et-Naph), 1,2-phenylenediamine (bis-Ph-SA, bis-Ph-4-NEt2, bis-Ph-5-NO2, bis-Ph-Naph), dicyano-1,2-ethenediamine (bis-CN-SA, bis-CN-4-NEt2, bis-CN-5-NO2, bis-CN-Naph) have been designed and prepared. The optical properties these base ligands were fully determined by UV–Vis absorption spectroscopy, fluorescence emission time-dependent-density functional theory (TD-DFT) calculations. inclusion D-A systems and/or π-extended in not only enables adjustable RGB light spectra (300~700 nm) but also yields high quantum efficiencies up to 0.84 MeCN solution. Then, with ESIPT (excited-state intramolecular proton transfer) property, analysis showed that probe bis-Et-SA bis-Ph-SA could recognize Zn2+ via “turn on” mode During detection process, demonstrate rapid response selectivity upon addition Zn2+. coordination oxygen atom nitrogen a tetrahedral geometry is confirmed Job’s plot, FT-IR, 1H NMR spectroscopy. In addition, paper test Hela cells successfully carried out detect Moreover, sensitivity much better than those containing one chelating unit [O^N^N^O].

Язык: Английский

A Simple and Rapid “Turn-On” Fluorescent Probe Based on Binuclear Schiff Base for Zn2+ and Its Application in Cell Imaging and Test Strips DOI Creative Commons
Jinghui Cheng,

Yi Li,

Zhiye Zhu

и другие.

Molecules, Год журнала: 2024, Номер 29(24), С. 5850 - 5850

Опубликована: Дек. 11, 2024

A series of colorful binuclear Schiff bases derived from the different diamine bridges including 1,2- ethylenediamine (bis-Et-SA, bis-Et-4-NEt2, bis-Et-5-NO2, bis-Et-Naph), 1,2-phenylenediamine (bis-Ph-SA, bis-Ph-4-NEt2, bis-Ph-5-NO2, bis-Ph-Naph), dicyano-1,2-ethenediamine (bis-CN-SA, bis-CN-4-NEt2, bis-CN-5-NO2, bis-CN-Naph) have been designed and prepared. The optical properties these base ligands were fully determined by UV–Vis absorption spectroscopy, fluorescence emission time-dependent-density functional theory (TD-DFT) calculations. inclusion D-A systems and/or π-extended in not only enables adjustable RGB light spectra (300~700 nm) but also yields high quantum efficiencies up to 0.84 MeCN solution. Then, with ESIPT (excited-state intramolecular proton transfer) property, analysis showed that probe bis-Et-SA bis-Ph-SA could recognize Zn2+ via “turn on” mode During detection process, demonstrate rapid response selectivity upon addition Zn2+. coordination oxygen atom nitrogen a tetrahedral geometry is confirmed Job’s plot, FT-IR, 1H NMR spectroscopy. In addition, paper test Hela cells successfully carried out detect Moreover, sensitivity much better than those containing one chelating unit [O^N^N^O].

Язык: Английский

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