期刊
DYES AND PIGMENTS
卷 160, 期 -, 页码 633-640出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2018.08.060
关键词
Probe; Fluorescence; Rhodamine; Carbazole; Copper ions
资金
- Natural Science Foundation of China [NNSFC 21272172]
- Natural Science Foundation of Tianjin [12JCZDJC21000]
- Scientific Developing Foundation of Tianjin Education Commission [2017ZD14]
The development of new fluorescent dyes has been a continuously interesting topic due to their wide applications in various optoelectronic, analytical and biological fields. In this paper, a novel xanthene dye CzR has been developed by hybridizing of the carbazole and rhodamine skeletons in one molecular. To regulate the optical properties of CzR, its N-methyl derivative MeCzR was prepared by the reaction of CzR with iodomethane. The absorption and emission properties of CzR and MeCzR were investigated in detail. Because the distribution positions of the positive charge within the chromophore are environment-dependent, the optical properties of the dye CzR are strongly pH-dependent. However, the optical properties of MeCzR are stable in water in a wide range of pH. To demonstrate the application of this novel dye, we synthesized the novel Cu2+ -selective fluorescent probe MeCzR-Cu. The probe exhibited a specific ability to recognize the Cu2+ ion over other chemically close ions and with a detection limit down to the nanomolar range. Meanwhile, the probe MeCzR-Cu is living cell membrane permeable and can be utilized as a practical vehicle for detecting Cu2+ in complex cellular systems.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据