A new fluorescent probe for gasotransmitter H₂S: high sensitivity, excellent selectivity, and a significant fluorescence off-on response

A fluorescent off-on probe for H2S was exploited by coupling the azide-based strategy with the excited-state intramolecular proton transfer (ESIPT) sensing mechanism, which exhibits a considerably high fluorescence enhancement (1150-fold), an extremely low detection limit (0.78 nM), and a relatively...

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Published inChemical communications (Cambridge, England) Vol. 50; no. 32; pp. 4214 - 4217
Main Authors Zhang, Jingyu, Guo, Wei
Format Journal Article
LanguageEnglish
Published England 25.04.2014
Subjects
Fluorescence
Fluorescent Dyes - chemistry
Gasotransmitters - chemistry
Hydrogen Sulfide - chemistry
Limit of Detection
Molecular Structure
Protons
Sensitivity and Specificity
Spectrometry, Fluorescence
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Summary:A fluorescent off-on probe for H2S was exploited by coupling the azide-based strategy with the excited-state intramolecular proton transfer (ESIPT) sensing mechanism, which exhibits a considerably high fluorescence enhancement (1150-fold), an extremely low detection limit (0.78 nM), and a relatively fast response time (3-10 min) as well as excellent selectivity.
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ISSN:1364-548X
DOI:10.1039/c3cc49605h