Abstract
Peroxynitrite (ONOO−) plays a crucial role in the regulation of diverse pathophysiological processes, and high level of ONOO− is profound association with numerous diseases. Herein, we developed an anthraquinone-based fluorescent probe L for ONOO− determination by a new recognition mechanism: amido oxidized nitroso-group by ONOO−. Probe L with amine-based recognition receptor is more selective to ONOO− than other reactive oxygen species, including H2O2 and ClO−. Furthermore, ONOO− could be rapidly detected by probe L with a Limit of Detection of 13 nM. More importantly, L could be used to monitor intracellular ONOO− in SMMC-7721 cells.
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