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Cascade OFF–ON–OFF fluorescent probe: Dual detection of Fe3+ ions and thiols

Paper ID Volume ID Publish Year Pages File Format Full-Text
25927 43920 2016 7 PDF Available
Title
Cascade OFF–ON–OFF fluorescent probe: Dual detection of Fe3+ ions and thiols
Abstract

•One dual-functional fluorescence probe based on Rhodamine B was designed.•LDF shows a highly selective fluorescent response to trace amounts of Fe3+ ions.•[LDF + Fe3+] ensemble is also further successfully utilized for detection of the thiols.•This system can also be applied in Hela Cells.

A new novel Rhodamine B-based fluorescent probe was synthesized for the selective cascade signaling of Fe3+ and thiols (glutathione, homo-cysteine, cysteine). Non-fluorescent rhodamine derivatives can selectively detect Fe3+ over some other metal ions in ethanol-water (4/1, v/v, pH 7.0) media, leading to prominent fluorescence OFF–ON switching. The obtained LDF-Fe3+ ensemble can subsequently serve as a sensitive and selective chemosensor for thiols, exhibiting complete signal quenching (fluorescence ON–OFF switching). The practical use of its Fe3+ ions ensemble was demonstrated by its application to the detection of thiols in the living cells.

Keywords
Rhodamine; Fe3+ ions; Thiols; Hela Cells
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Cascade OFF–ON–OFF fluorescent probe: Dual detection of Fe3+ ions and thiols
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 328, 1 September 2016, Pages 129–135
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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