文献类型：期刊文献

英文题名：A colorimetric and ratiometric fluorescent probe with a large stokes shift for detection of hydrogen sulfide

作者：Xiang, Kaiqiang[1,2];Liu, Yunchang[1,2];Li, Changjiang[3];Tian, Baozhu[1,2];Tong, Tianzhong[1,2];Zhang, Jinlong[1,2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[3]Huangshan Univ, Dept Chem, Huangshan 245041, Peoples R China

年份：2015

卷号：123

起止页码：78

外文期刊名：DYES AND PIGMENTS

收录：;EI(收录号：20153301166735);WOS:【SCI-EXPANDED(收录号:WOS:000367768300011)】；

基金：This work has been supported by the National Natural Science Foundation of China (21277046, 21173077, 21377038), the Shanghai Committee of Science and Technology (13NM1401000), the Research Fund of Education of the People's Republic of China (JPPI-125-4-076), and the National Basic Research Program of China (973 Program, 2013CB632403).

语种：英文

外文关键词：Fluorescence probe; Hydrogen sulfide; Stokes shift; Isophorone; Ratiometric detection; Selectivity

摘要：Developing probes for selective and sensitive detection of hydrogen sulfide (H2S) has received much research attention, because H2S is an environmental toxin as well as an important signaling molecule to regulate physiological and pathological processes. In this work, a new colorimetric and ratiometric fluorescent probe (Probe 1) for H2S detection was synthesized by employing dicyanoisophorone based fluorescence dye as a fluorophore and azide group as the response unit. The synthesized Probe 1 showed a long emission wavelength (lambda(em) = 643 nm) and large stokes shift (lambda(em) - lambda(abs) = 163 nm). Based on the H2S-induced reduction of azide group to amino group, Probe 1 showed high response speed, sensitivity, and selectivity toward HS- under room temperature. Moreover, Probe 1 can ratiometrically respond to HS- and the detection limit is as low as 0.13 mu M. It was proved that Probe 1 is suitable for quantitatively detecting HS- ions in river water samples. The numerous advantages of Probe 1 make it be potentially used for quantitative detection of H2S in environment and living organisms. (C) 2015 Elsevier Ltd. All rights reserved.