A ‘switching-on’ fluorescent chemosensor for the selective and sensitive signaling of intraceullar Cr³⁺ has been designed and synthesized exploiting the guest-induced prohibition of the photoinduced electron transfer process between naphthyridine moiety and 7,10-diphenylfluoranthene moiety, the system shows a Cr³⁺-selective chelation-enhanced fluorescence response not only in ethanol but in cell.

中文翻译：

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对Cr ³⁺具有选择性的“开-关”荧光化学传感器及其在MCF-7细胞中的应用

该系统显示了利用来宾诱导禁止萘啶部分和7,10-二苯基荧蒽部分之间的光诱导电子转移过程，设计并合成了一种“接通式”荧光化学传感器，用于选择性和敏感地指示Intraullarar Cr ^3+。不仅在乙醇中，而且在细胞中，Cr ^3+-选择性螯合增强的荧光反应。