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• W4385455597 abstract "Herein, a Eugenol-derived fluorescence 'turn-on' probe FLHE was synthesized by condensing 2-((3-(trifluoromethyl)phenyl)amino)benzohydrazide with 5-allyl-2-hydroxy-3-methoxybenzaldehyde. FLHE demonstrated very low fluorescence in the studied organic solvents of varying polarities. However, upon titration with Zn2+ in HEPES buffer (pH = 7.4, 50% ACN, v/v), FLHE showed 40-fold higher fluorescence signals indicating the formation of the FLHE–Zn2+ complex. The fluorescence turn-on phenomenon upon FLHE–Zn2+ complex formation results from a chelation-enhanced fluorescence (CHEF) effect. The FLHE–Zn2+ complexation demonstrated a stokes shift of 156 nm (λex = 350 nm, λem = 506 nm) and an about 33-fold increase in the quantum yield (FLHE, Φ = 0.007; FLHE–Zn2+ complex, Φ = 0.23). The binding constant (Ka) determined by the Benesi-Hildebrand plot for interaction between FLHE and Zn2+ was 5.33 × 103 M−1. FLHE demonstrated a LOD of 31.8 nM for detecting Zn2+ in the environmental samples without interference from other cations and anions. FLHE-based paper strip (FLHE-PS) assay was developed to quantify the Zn2+ ions in water and the water content of organic solvent. FLHE-PS allows the detection of Zn2+ in aqueous solutions with a LOD of 63.2 nM and quantifying water in acetonitrile with a LOD of 0.14%. These results indicate that the FLHE has high applicability for detecting Zn2+ in living cells and environmental samples and detecting the presence of water in the organic solvents." @default.
• W4385455597 created "2023-08-02" @default.
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• W4385455597 date "2023-10-01" @default.
• W4385455597 modified "2023-09-26" @default.
• W4385455597 title "A dual-function fluorescence 'turn-on' probe that allows Zn (II) bioimaging and quantification of water in the organic solvent" @default.
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• W4385455597 doi "https://doi.org/10.1016/j.ymeth.2023.07.009" @default.
• W4385455597 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37536375" @default.
• W4385455597 hasPublicationYear "2023" @default.
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