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Construction and Application of Phenothiazine-Based Fluorescent Probes for the Detection of Hypochlorous Acid
Yuehua Yuan, Chaoyi Yue, Mengqing Du, Feng Feng, Maozhong Tian
Prog Chem ›› 2026, Vol. 38 ›› Issue (5) : 921-940.
PDF(13163 KB)
PDF(13163 KB)
Construction and Application of Phenothiazine-Based Fluorescent Probes for the Detection of Hypochlorous Acid
Hypochlorous acid/hypochlorite (HClO/ClO-) is one of the prominent reactive oxygen species (ROS), which has pivotal impacts in both daily life and complex biological processes. Excessive HClO/ClO- can lead to a series of diseases, such as arthritis, cardiovascular diseases and cancer, etc. Therefore, it is of great significance to detect HClO/ClO- in biological systems rapidly, sensitively and selectively. Phenothiazine (PTZ) and its derivatives with electron-rich properties are a class of significant fluorophores. At the main modification sites of a PTZ fluorophore, electron-donating or electron-withdrawing groups can be easily introduced to effectively regulate the photophysical properties of phenothiazine molecules. Moreover, they also have the advantages of non-planar butterfly-shaped curved structures that can fully inhibit the formation of molecular aggregates and environmental friendliness. Hence, they show obvious superiorities in the construction of HClO/ClO- fluorescent probes. In this review, we systematically discuss the research progress of phenothiazine-based fluorescent probes for HClO/ClO-. The sensing mechanism, relevant performance parameters and practical application of these fluorescent probes are highlighted, and the prospects for phenothiazine-based fluorescent probes for HClO/ClO- are discussed.
1 Introduction
2 Fluorescent probes for HClO/ClO- based on PET
3 Fluorescent probes for HClO/ClO- based on ICT
4 Fluorescent probes for HClO/ClO- based on other detection mechanism
5 Conclusion and outlook
phenothiazine / hypochlorous acid / hypochlorite / fluorescence probe / recognition mechanism / practical application
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