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Rhodamine 6G hydrazone with coumarin unit: a novel single-molecule multianalyte (Cu2+ and Hg2+) sensor at different pH value
- Source :
- RSC Advances. 7:42312-42319
- Publication Year :
- 2017
- Publisher :
- Royal Society of Chemistry (RSC), 2017.
-
Abstract
- A rhodamine derivative was synthesised via the hydrazone formation of rhodamine 6G hydrazide with 7-diethylamino-3-(1-hydroxy-3-oxobut-1-enyl)-2H-chromen-2-one. As a colourimetric and ratiometric fluorescent probe, the derivative exhibited high selectivity towards Cu2+ in neutral aqueous media. Moreover, the probe sensed Hg2+ with fluorescence enhancement at pH 10. The binding process was confirmed via UV-vis absorption, fluorescence measurements, 1H NMR, mass spectroscopy and density functional theory calculation. To validate the applicability of the probe, the probe was used to detect Cu2+ and Hg2+ ions in actual water samples. The application of the fluorescent sensor in monitoring intracellular Cu2+ in Hela cells has also been demonstrated.
- Subjects :
- chemistry.chemical_classification
General Chemical Engineering
Hydrazone
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
Mass spectrometry
Photochemistry
Hydrazide
01 natural sciences
Fluorescence
0104 chemical sciences
Rhodamine 6G
chemistry.chemical_compound
chemistry
Proton NMR
Molecule
0210 nano-technology
Derivative (chemistry)
Subjects
Details
- ISSN :
- 20462069
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- RSC Advances
- Accession number :
- edsair.doi...........950cb95e028e9625191cebfc6122d05d