In vivo bio-imaging studies of highly selective, sensitive rhodamine based fluorescent chemosensor for the detection of Cu^sup 2+^/Fe^sup 3+^ ions

A Rhodamine based quinoline conjugated fluorescence chemosensor (RhQA) was delineated for the detection of two paramagnetic metal ions (Fe3+/Cu2+) through various analytical techniques. The addition of Fe3+ and Cu2+ ions induced a great enhancement in the absorption of RhQA; moreover, Fe3+ also indu...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2018-11, Vol.B274, p.22
Main Authors: Murugan, A Senthil, Vidhyalakshmi, N, Ramesh, U, Annaraj, J
Format: Article
Language:English
Subjects:
Calcium ions
Chemical sensors
Chemoreceptors
Cobalt
Copper
Embryos
Ferric ions
Ferrous ions
Fluorescence
In vivo methods and tests
Ions
Lead
Manganese
Mercury (metal)
Metal ions
Nickel
Quinoline
Rhodamine
Sensors
Transition metals
Zebrafish
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Summary:A Rhodamine based quinoline conjugated fluorescence chemosensor (RhQA) was delineated for the detection of two paramagnetic metal ions (Fe3+/Cu2+) through various analytical techniques. The addition of Fe3+ and Cu2+ ions induced a great enhancement in the absorption of RhQA; moreover, Fe3+ also induced a strong fluorescence enhancement. Hence, this is an admirable example for the selective detection of the biologically/environmentally significant transition metal ions as dual chemosensor. The obtained results reveal that the chemosensor (RhQA) has remarkable selectivity towards Fe3+/Cu2+ ions even in the presence of higher concentration of various interference metal ions such as Pb2+, Cd2+, Hg2+, Zn2+, Ni2+, Co2+, Mn2+, Fe2+, Cr3+, Ca2+, Ba2+, Mg2+, Na+, K+, and Ag+. Its excellency in sensitivity was confirmed by the obtained linear relationship with Fe2+/Cu3+ ions, and the calculated detection limit values are, 1.8 × 10−8 and 3.3 × 10−8 M for Cu2+ and Fe3+ ions respectively. More interestingly, this chemosensor, RhQA was successfully employed to trace out the intra cellular Fe3+ ions in Zebrafish embryos.
ISSN:0925-4005
1873-3077