A mononuclear zinc complex is shown to act as a highly selective naked-eye-based chemosensor for pyrophosphate (PPi) in aqueous solution. Based on the keto–enol transformation process, addition of PPi made the color of the sensor complex change from red to colorless. Moreover, electrospun nanofibers from the mononuclear zinc complex could detect PPi on site and in real-time and the color of the nanofibers changes rapidly after they were immersed in an aqueous solution of pyrophosphate.

中文翻译：

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基于裸眼的Zn ²⁺络合物水溶液和电纺纳米纤维中焦磷酸盐的选择性检测†

单核锌配合物显示出可作为水溶液中焦磷酸盐（PPi）的高度选择性的基于肉眼的化学传感器。基于酮-烯醇的转化过程，添加PPi使传感器的颜色从红色变为无色。此外，单核锌络合物的电纺纳米纤维可以现场和实时检测PPi，将纳米纤维浸入焦磷酸盐水溶液后，其颜色会迅速变化。