Anthracene- and pyrene-bearing imidazoles as turn-on fluorescent chemosensor for aluminum ion in living cells
| Autor: | Ayyanar Siva, Gandhi Sivaraman, Ganesan Jeya Shree, Duraisamy Chellappa |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Detection limit
Anthracene Aqueous solution Process Chemistry and Technology General Chemical Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Fluorescence 0104 chemical sciences Ion chemistry.chemical_compound Aniline chemistry Pyrene 0210 nano-technology Stoichiometry |
| Zdroj: | Dyes and Pigments. 163:204-212 |
| ISSN: | 0143-7208 |
| Popis: | A newly designed 2-(2-Aminophenyl)-1H-benzimidazole integrated anthracene/pyrene derivatives as efficient chemosensors were synthesized. The probes N-(anthracen-9-ylmethylene)-2-(1H-benzo[d]imidazol-2-yl)aniline (ANP) and N-(pyren-1-ylmethylene)-2-(1H-benzo[d]imidazol-2-yl)-aniline (PYP) exhibited high selectivity and sensitivity towards Al3+ ion over other interfering and competing cations in aqueous solution. Job's plot analysis reveals that the interaction of ANP/PYP with Al3+ was 1:1 binding stoichiometry. The detection limit of probes ANP and PYP for Al3+ ions were found to be 1.85 × 10−7 M and 1.08 × 10−7 M, respectively. The DFT/TD-DFT calculations have also been revealed that the ICT mechanism is responsible for the observed photophysical changes. Moreover, the probes ANP and PYP were applicable to image intracellular Al3+ ions in living cells via confocal fluorescence microscopy technique. |
| Databáze: | OpenAIRE |
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