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• W2921388506 abstract "Abstract In the present work, we report the design of a novel chemosensor 2‐(1H‐indole‐3‐yl)‐1H‐imidazo[4,5‐b]phenazine, ( R ) for fluoride ion detection via a naked eye observable colour change from light yellow to brown along with 10 fold ratiometric fluorescence quenching from green to no fluorescence in a matrix containing a large number of similar toxic anions in aqueous dimethylsulfoxide (30% H 2 O + DMSO) solution. The sensing mechanism was ascertained to be the fluoride triggered deprotonation of imidazole as well as indole moiety of R which is supported by 1:2 saturation level equivalence of R ‐F ‐ . R was fully characterized through FT‐IR, 1 H, 13 C NMR and HRMS. R is an effective receptor for F ‐ within a wide range of pH that indicates its bio‐compatibility. LoD and K a for F ‐ were found to be 1.8×10 ‐6 M (below 0.34 mg/Liter) and 2.7 × 10 4 M ‐1 respectively. The experimental observations were supported by the theoretical calculations using density functional theory. R also showed its potential practical applicability for fluoride detection in toothpaste solution. Furthermore, to prove its nontoxicity, probe R also applied to a cytotoxicity assay of HeLa cells followed by confocal fluorescence cells imaging and Zebrafish imaging experiments." @default.
• W2921388506 created "2019-03-22" @default.
• W2921388506 creator A5036622326 @default.
• W2921388506 creator A5078513766 @default.
• W2921388506 date "2019-03-12" @default.
• W2921388506 modified "2023-10-16" @default.
• W2921388506 title "Phenazine-Based Fluorescence “Turn-Off” Sensor for Fluoride: Application on Real Samples and to Cell and Zebrafish Imaging" @default.
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• W2921388506 doi "https://doi.org/10.1002/slct.201803702" @default.
• W2921388506 hasPublicationYear "2019" @default.
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