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Heterocyclic ring based colorimetric and fluorescent chemosensor for transition metal ions in an aqueous medium
- Source :
- Journal of Luminescence. 158:484-492
- Publication Year :
- 2015
- Publisher :
- Elsevier BV, 2015.
-
Abstract
- Heterocyclic ring based R 1 –R 3 have been synthesized from the simple condensation method. R 1 –R 3 exhibit highly selective and sensitive recognition towards transition metal ions in an aqueous medium via visual color change and were further confirmed by UV–vis and fluorescent spectroscopic methods. Fluorescent turn on and turn off behavior was observed for receptors tested with transition metal ions. The interaction of transition metal ions and receptors R 1 –R 3 was confirmed to adopt 1:1 binding stoichiometry. Micromolar detection limit was found for R 1 –R 3 with metal ions. DFT theoretical calculations were employed to understand the sensing mechanism of the sensors towards the metal ions. R 1 and R 2 were also successfully demonstrated as a fluorescent probe for detecting Cu 2+ ions in living cells.
- Subjects :
- Detection limit
Chemistry
Metal ions in aqueous solution
Inorganic chemistry
Biophysics
General Chemistry
Condensed Matter Physics
Ring (chemistry)
Photochemistry
Biochemistry
Fluorescence
Atomic and Molecular Physics, and Optics
Fluorescence spectroscopy
Ion
Ultraviolet visible spectroscopy
Stoichiometry
Subjects
Details
- ISSN :
- 00222313
- Volume :
- 158
- Database :
- OpenAIRE
- Journal :
- Journal of Luminescence
- Accession number :
- edsair.doi...........9e412c788e2b18dfdda876662cd9d356