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Xin, Fangyun; Wang, xichen; Wang, Haixu; Yang, Yuanqian; Xing, Mingming; Wang, Hong; Fu, Yao; Tian, Ying; Tian, Yong
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 10/2024, Letnik: 318Journal Article
Display omitted •A reversible and dual-fluorescence probe was constructed for sulfur dioxide and mercury ion.•Sulfur dioxide and mercury ion could light up the emission at 485 nm and 679 nm respectively without spectral crosstalk.•The probe could realize in-situ rapid dynamic tracing of sulfur dioxide and mercury ion in living cells, and present the phenomenon of antagonism between sulfur dioxide and mercury ion in mercury poisoning. Mercury ion (Hg2+) is one of the most threatening substances to human health, and the mercury poisoning can damage physiological homeostasis severely in human, even cause death. Intriguingly, Sulfur dioxide (SO2), a gas signal molecule in human, can specifically interact with Hg2+ for relieving mercury poisoning. However, the dynamic interaction of Hg2+ with SO2 at the tempospatial level and the correlation between Hg2+ and SO2 in the pathological process of mercury poisoning are still elusive. Herein, we rationally designed a reversible and dual color fluorescent probe (CCS) for dynamically visualizing Hg2+ and SO2 and deciphering their interrelationship in mercury poisoning. CCS held good sensitivity, selectivity and reversibility to Hg2+ and SO2, that enabled CCS to specifically detect SO2 and Hg2+ via cyan fluorescence channel (centered around 485 nm) and red fluorescence channel (centered around 679 nm), respectively. Notably, the separate fluorescence signal changes of CCS realized the dynamic tracing of Hg2+ and SO2 in living cells, and presented the potential for exploring the correlation between SO2 and Hg2+ in mercury poisoning.
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