A highly selective chemodosimeter for fast detection and intracellular imaging of Hg2+ ions based on a dithiocarbamate-isothiocyanate conversion in aqueous ethanol
| Autor: | Suman Pal, Alok Shaurya, Mousumi Samanta, Subhajit Bandyopadhyay, Joydev Hatai |
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| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
Ions Ethanol Metal ions in aqueous solution Organic Chemistry Inorganic chemistry Water Crystal structure Mercury Photochemistry Biochemistry Fluorescence Ion Blueshift chemistry.chemical_compound Spectrometry Fluorescence chemistry Isothiocyanates Thiocarbamates Isothiocyanate Spectrophotometry Ultraviolet Physical and Theoretical Chemistry Dithiocarbamate Naphthalene Fluorescent Dyes |
| Zdroj: | Organicbiomolecular chemistry. 12(7) |
| ISSN: | 1477-0539 |
| Popis: | A new naphthalene diimide-dithiocarbamate based fluorescence probe was synthesized and its fluorogenic behavior towards various metal ions was studied. Upon addition of various metal ions, the probe afforded an irreversible change only with Hg(2+) ions in aqueous-ethanol media (4 : 1 v/v) with a fourfold enhancement of the fluorescence (Φ = 0.03 → 0.11) along with a distinct 43 nm blue shift of the emission maxima. The mechanism of the chemodosimetric behavior of the probe has been attributed to a Hg(2+) induced transformation of a weakly fluorescent dithiocarbamate to a highly fluorescent isothiocyanate which has been characterized by a number of spectroscopic techniques and a crystal structure. Intracellular detection of Hg(2+) ions was achieved using the probe. |
| Databáze: | OpenAIRE |
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