Abstract
As an important reactive oxygen species (ROS), hydrogen peroxide plays a significant role in the life activity system, and its abnormal levels are closely related to many diseases. Developing effective fluorescent probes for detecting hydrogen peroxide is very urgent. Therefore, we constructed a probe Z that can detect hydrogen peroxide in ratio. It has naphthimide as the fluorophore and phenylboronic acid pinacol esters as the recognition group. It shows higher sensitivity, lower detection limit, higher selectivity, and broad pH applicability. Moreover, probe Z has low cytotoxicity that can be used to detect exogenous hydrogen peroxide in HeLa cells and might be a potential tool for studying hydrogen peroxide in physiological activities.
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