期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 182, 期 -, 页码 521-529出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2013.03.044
关键词
Two-photon fluorescence solvatochromic sensor; Stilbene derivatives; Polarity; Viscosity; Temperature
资金
- National Basic Research Program of China [2012CB825802]
- National Natural Science Foundation of China [61078067]
- China Postdoctoral Science Foundation [20100471224]
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province [201202]
- Guangdong Natural Science Foundation [S2011040000536]
- Planned Science and Technology Project of Hunan Province, China [2011RS4020]
- Planned Science and Technology Project of Shaoguan, Guangdong Province, China [2011CX/K19]
The unusually sensitive solvatochromic probes (P1 and P2) derived from 4-methyl-2,5-dicyano-4'-amino stilbene (DCS) whose emission maxima and two-photon absorption cross sections (delta) vary from 445 and 452 nm, and 5560 and 6670 GM in cyclohexane to 641 and 604 nm, and 980 and 2040 GM in DMSO, respectively are described. P1 and P2 exhibit very strong polarity-, viscosity-, and temperature-dependence of fluorescence, and can be used to detect polarities, viscosities, and temperature. P1 and P2 possess small molecule-size, wide solvatochromism (445-641 nm, 452-641 nm), large delta (980-5560 GM, 2040-6670 GM), and high fluorescence quantum yields, and are ideal two-photon fluorescence solvatochromic probes. (C) 2013 Elsevier B.V. All rights reserved.
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