期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 184, 期 -, 页码 274-280出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2013.04.070
关键词
Ratiometric probe; Hydrogen sulfite; Intramolecular charge transfer; Selectivity; Bioimaging application
资金
- NSFC [20974084]
- National Fundamental Key Research Program [2011CB932702]
4-(1H-Phenanthro[9,10-d] imidazol-2-yl) benzaldehyde (P-1) was prepared as a new ratiometric optical probe for hydrogen sulfite. Upon the addition of HSO3-, it displayed large emission wavelength shift (Delta lambda = 120 nm) and the detection limit was determined to be as low as 2 mu M. In addition to its high selectivity for hydrogen sulfite rather than other common anions, P-1 was successfully applied to the detection of hydrogen sulfite in HeLa cells with ratiometric fluorescent methods. (C) 2013 Elsevier B.V. All rights reserved.
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