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Two isomeric and distinguishable H2S fluorescence probes for monitoring spoilage of eggs and visualizing exogenous and endogenous H2S in living cells

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Abstract

Accurate fabrication of fluorescence probes to efficiently monitor and detect H2S levels in the fields of foodstuffs and physiology is crucial. Herein, we report two isomeric phenanthro[9,10-d]imidazole benzene sulfonamide-derived fluorescence probes (PI-2-SA and PI-4-SA), both of which display remarkable responses toward H2S over other analytes. The spectral characteristics of the two probes were investigated and are discussed in detail. By comparison, PI-2-SA was specific, sensitive (the limit of detection was ca. 12.3 nM), rapid (within ā‰¤3 min) and dynamic (the rate constant was 0.02 sāˆ’1). Significantly, PI-2-SA was proved to be effective in monitoring the shelf-time progress of egg samples in real time as well as in the imaging of exogenous and endogenous H2S in HeLa cells.

Graphical abstract: Two isomeric and distinguishable H2S fluorescence probes for monitoring spoilage of eggs and visualizing exogenous and endogenous H2S in living cells

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Publication details

The article was received on 23 Aug 2019, accepted on 30 Oct 2019 and first published on 05 Nov 2019


Article type: Paper
DOI: 10.1039/C9AN01629E
Analyst, 2019, Advance Article

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    Two isomeric and distinguishable H2S fluorescence probes for monitoring spoilage of eggs and visualizing exogenous and endogenous H2S in living cells

    Y. He, B. Zhao, W. Kan, L. Ding, Z. Yu, M. Wang, B. Song and L. Wang, Analyst, 2019, Advance Article , DOI: 10.1039/C9AN01629E

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