Abstract
Intracellular redox homeostasis exerts a tremendous influence on pathophysiological fields. In order to maintain the homeostasis of intracellular redox state, reactive oxygen species (ROS) and reactive sulfur species (RSS) react and transform with each other, and their levels also directly reflect the degree of oxidative stress and disease. To understand the correlation and pathophysiological effects of these two signaling molecules in oxidative stress, unique fluorescence imaging tools are required. Fluorescent probes have become an indispensable detection tool in modern scientific research and disease diagnosis. Currently, there are many fluorescent probes for detecting ROS or RSS. However, the cellular environment is extremely complex. Dual detection fluorescent probes that can monitor more than one species in a biological environment cause our attention. This review describes dual detection fluorescent probes that can detect ROS and RSS simultaneously or sequentially. This will provide strong support for the study of redox homeostasis.
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