期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 238, 期 -, 页码 613-618出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2016.07.130
关键词
Conjugated polymer; Fluorescent probe; Metal ions; Cells; Properties
资金
- National Nature Science Foundation [21371110, 21571116]
- Youth Science Foundation of Shanxi Province [2014021006, 2016021054]
- Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi
A novel pi-conjugated polymer comprised of 8-methoxyquinoline and benzene groups has been successfully synthesized and characterized. The polymer exhibits good photo and thermal stabilities with decomposition temperature (Td) of 240 degrees C and glass transition temperature (Tg) of 325 degrees C. The maximum absorption and emission wavelengths of the polymer are 325 nm and 430 nm with a high fluorescence quantum yield (0.74) in chloroform, respectively. The electrochemical properties of the polymer were investigated with the cyclic voltammetry method, and the results agreed with the data of theoretical calculation by the Gaussian 09 software. Based on the excellent photoelectric properties, the polymer as a fluorescent probe was used to detect metal ions in solution and biological cells. Experimental results indicate that the polymer has a high selectivity and sensitivity for Fe3+ with the fluorescence quenched processes. Noticeably, the detection of the polymer for Fe3+ can be processed in biological system. (C) 2016 Elsevier B.V. All rights reserved.
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