Toxic hydrazine poses a huge threat to living organisms and our environment. Extremely acidic pH is also harmful to various ecosystems. Here, a coumarin-based dye called CMM has been synthesized for the ratiometric detection of hydrazine (F/F). CMM could detect gaseous hydrazine in the environment and endogenous hydrazine in live cells. Furthermore, the fluorescence at 563 nm of CMM was stable from pH 10.0 to 2.0, whereas increased greatly from pH 2.0 to 1.2. Thus, the probe could also detect extremely acidic pH with great fluorescence enhancement. The p value was determined to be as low as 1.41. We anticipate that the probe could provide a good candidate for detection of toxic hydrazine and extremely acidic pH.

中文翻译：

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一种新型荧光探针，用于不同模式下检测肼和极酸性 pH 值


有毒的肼对生物体和我们的环境构成巨大威胁。极端酸性的pH值也对各种生态系统有害。在此，合成了一种称为 CMM 的香豆素基染料，用于肼 (F/F) 的比率检测。 CMM可以检测环境中的气态肼和活细胞中的内源性肼。此外，CMM 563 nm 处的荧光在 pH 10.0 至 2.0 范围内保持稳定，而从 pH 2.0 至 1.2 范围内大幅增加。因此，该探针还可以检测极端酸性的 pH 值，并且荧光增强。 p 值确定为低至 1.41。我们预计该探针可以为检测有毒肼和极酸性 pH 值提供良好的候选探针。