期刊
CHINESE CHEMICAL LETTERS
卷 28, 期 10, 页码 2005-2008出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2017.09.014
关键词
Naphthalimide-rhodamine derivative; Cellular pH; Ratiometric detection; Imaging; Fluorescence resonance energy transfer (FRET)
资金
- National Natural Science Foundation of China [21272030, 21472016, 21306019, 21576042]
The pH values of lysosomes in cancer cells is slightly lower than that in normal cells, which can be used to distinguish cancer cells from normal cells. According to this, a naphthalimide-rhodamine based fluorescent probe (hereafter referred to as RBN) with a pl(a) of 4.20 was designed and synthesized for ratiometric sensing of cellular pH via fluorescence resonance energy transfer (FRET), which can respond to different pH precisely through ratiometric fluorescence intensity (I-577/I-540). RBN can be employed to distinguish cancer cells from normal cells on the basis of different fluorescent response, in particular, RBN showed excellent water solubility and low cell toxicity, all these are quite significant for potential application in cancer diagnose and therapy. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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