期刊
ANALYTICAL CHEMISTRY
卷 85, 期 20, 页码 9877-9881出版社
AMER CHEMICAL SOC
DOI: 10.1021/ac402409m
关键词
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资金
- 973 Program [2013CB933800]
- National Natural Science Foundation of China [21227005, 21035003, 21205073]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20113704130001]
- Program for Changjiang Scholars and Innovative Research Team in University
- Science and Technology Development Programs of Shandong Province of China [2010G0020243]
A newly synthesized reaction-based two-photon (TP) fluorescence imaging probe, 9-butyltriphenylphosphoniumacylamino-2,7-dibenzothiazolineflurene (MF-DBZH), composed of a superoxide anion (O-2(center dot-)) responsive group and a mitochondria-targeted site, has been shown to have high selectivity toward mitochondrial O-2(center dot-) fluxes. The fluorescence intensity of MF-DBZH responds proportionally to changes in O-2(center dot-) concentrations. Moreover, MF-DBZH was proved to be insensitive toward pH changes and has high photostability. Favorable features of this probe also include convenient cell loading, easy staining of both cells and small animals, and excellent biocompibility. Most importantly, MF-DBZH gives reliable TP fluorescent signal to changes of O-2(center dot-) levels in vivo.
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