首页|A xanthene-based fluorescent probe for detection of peroxynitrite in living cells and zebrafish
A xanthene-based fluorescent probe for detection of peroxynitrite in living cells and zebrafish
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NSTL
Elsevier
Peroxynitrite (ONOO-) is one of quite critical reactive oxygen species that acts critical roles in a number of diverse biological functions and pathological events. Notably, excessive ONOO- will lead to sorts of diseases. Thus, monitoring of endogenous ONOO- levels will be conducive to exploring the physiological activities and functions of ONOO-. Here, a simple turn-on fluorescent probe named DMX is reported using C=N bond as the ONOO- recognition site and xanthene as the fluorophore. DMX possessed a good linear dependence with ONOO- concentration (0-9 mu M), highly sensitive detection (DL = 37 nM), and excellent selectivity towards ONOO-. What is more, the biological experiments reveal that DMX is able to be utilized to track exogenous/endogenous ONOO(- )employing confocal laser scanning microscopy. Visualization of ONOO- in zebrafish was also successfully conducted, suggesting that DMX might be used to study ONOO- roles in vivo. We believe that DMX will have potential for exploring the pivotal role of ONOO- during all sorts of physiological and pathological activities. (C) 2022 Elsevier B.V. All rights reserved.
NSTL
Elsevier
