Journal
DYES AND PIGMENTS
Volume 186, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2020.108997
Keywords
Fluorescence probes; Active sulfur molecules; Sensing mechanisms; Living cell imaging
Funding
- Shaanxi Province Key Research and Development Program [2019ZDLSF03-03]
- National Research Council of Science and Technology Major Project of China on Key New Drug Creation and Development Program [2014ZX09J14104-06C]
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This review summarizes the fluorescent probes that can detect and image active sulfur small molecules based on their non-invasiveness, fast response times, and real-time in situ detection capability. The probes are classified according to the different reaction types of each small molecule, with detailed summaries of the reaction mechanisms provided. The challenges of active sulfur small molecules-responsive fluorescent probes are also emphasized in the review, aiming to provide implications for future research.
The active sulfur small molecules such as biothiols, hydrogen sulfide, hydrogen polysulfides and sulfur dioxide are closely related to various diseases in the biological system and have important physiological and pathological functions. Small-molecule fluorescent probes enable to detect and image active sulfur small molecules by virtue of their non-invasiveness, fast response times, and real-time in situ detection capability. Based on the inherent characteristics of active sulfur small molecules, many fluorescent probes have been reported to detect and image them. In this review, we classify the fluorescent probes according to the different type reaction of each small molecule, and summarize the reaction mechanism in detail. Moreover, we also emphasize the challenges of active sulfur small molecules-responsive fluorescent probes, hoping to provide a general implication for future research.
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