A sole multi-analyte receptor responds with three distinct fluorescence signals: traffic signal like sensing of Al super(3+), Zn super(2+) and F super(-)

A dialdehyde-based multi-analyte sensor renders distinctive emission spectra for Al super(3+), Zn super(2+) and F super(-) ions. The ligand exhibited different types of interactions with these three different ions resulting in the enhancement of fluorescence intensity at three different wavelengths....

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2015-07, Vol.44 (29), p.13093-13099
Main Authors: Datta, Barun Kumar, Thiyagarajan, Durairaj, Ramesh, Aiyagari, Das, Gopal
Format: Article
Language:English
Subjects:
Absorption spectroscopy
Aluminum
Detection
Fluorescence
Ligands
Titration
Wavelengths
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Summary:A dialdehyde-based multi-analyte sensor renders distinctive emission spectra for Al super(3+), Zn super(2+) and F super(-) ions. The ligand exhibited different types of interactions with these three different ions resulting in the enhancement of fluorescence intensity at three different wavelengths. All the sensing processes were studied in detail by absorption spectroscopy, emission spectroscopy and super(1)H-NMR titration experiment. The ligand has the working ability in a wide pH range including the physiological pH. The ligand is non-toxic and amicable for sensing intracellular Al super(3+) and Zn super(2+) in live HeLa cells.
ISSN:1477-9226
1477-9234
DOI:10.1039/c5dt01468a