Recent development of synthetic probes for detection of hypochlorous acid/hypochlorite
2020
Abstract Hypochlorous acid/hypochlorite (HOCl/OCl−), as one of the most important reactive oxygen species (ROS), plays an important role in various physiological and pathological processes. Nonproperly located or abnormal concentration of OCl−, however, is associated with many diseases. Thus, developing the fluorescent probe for detecting OCl− is of great significance. To this end, in last decade, many fluorescent probes have been developed and applied for detecting HOCl/OCl− in vitro and in vivo. Despite a great progress has achieved, the development and application of near-infrared fluorescent HOCl/OCl− probe still have some challenges. For example, highly specific and sensitive NIR fluorescent HOCl/OCl− probes applied in endogenous OCl− detection and subcellular organelle bioimaging. In this review, we summarized the representative cases of HOCl/OCl− probes with properties that mentioned above. The discussion contains design strategies, detection mechanisms, as well as applications in bioimaging.
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