Studies have shown that changes in the redox state of cells might be closely related to pathological and physiological processes. Sulfur dioxide and hydrogen peroxide, as a significant redox couple in living cells, are endogenously produced by cells. Here, we report a long-wavelength fluorescent probe to reversibly monitor sulfur dioxide and hydrogen peroxide. This probe (NBD) displayed high selectivity and sensitivity, which could be accumulated in mitochondria for real-time imaging of SO/HO. These results indicated that NBD would be an ideal tool for monitoring the redox cycle state in living cells.
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| http://dx.doi.org/10.1016/j.saa.2021.120134 | DOI Listing |
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