文献类型：期刊文献

英文题名：Micelle-induced multiple performance improvement of fluorescent probes for H2S detection

作者：Tian, Haiyu[1];Qian, Junhong[1];Bai, Hongyan[1];Sun, Qian[1];Zhang, Lingyi[1];Zhang, Weibing[1]

机构：[1]E China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China

年份：2013

卷号：768

期号：1

起止页码：136

外文期刊名：ANALYTICA CHIMICA ACTA

收录：;EI(收录号：20131216138494);WOS:【SCI-EXPANDED(收录号:WOS:000316438800016)】；

基金：This work was financially supported by National 973 Program (No. 2011CB910403), NSFC (No. 21075039) and Open Project Fund of Shanghai Key Laboratory of Scene Material Evidence (2011XCWZKO2). We appreciate Prof. A.M. Brouwer (University of Amsterdam) for his kind help.

语种：英文

外文关键词：Fluorescent probe; Naphthalimide; H2S; Cetyltrimethyl ammonium bromide (CTAB); Fetal bovine serum

摘要：In this paper, two calorimetric and turn-on fluorescent probes N-[2-(2-hydroxy)-ethoxy] ethyl-4-azido-1,8-naphthalimide (SS1) and N-butyl-4-azido-1,8-naphthalimide (SS2) for selective recognition of H2S were designed and synthesized. The probes were constructed by incorporating an azido group into the naphthalimide fluorophore as a specifical reaction group for sulfide utilizing its reducing property. Once treated with H2S, the azido groups of the probes were converted to amino groups and the solutions' color changed from colorless to yellow companied with a strong yellow-green fluorescence. Rapid and sensitive responses of the probes towards H2S were achieved in the presence of cationic surfactant cetyltrimethyl ammonium bromide (CTAB): the reaction was completed within 10 min in CTAB compared to more than 4 h in buffer solution, and the detection limit decreased from 0.5 mu M to 20 nM. High selectivity and good competition of both probes towards H2S over other II ions and 2 reducing agents were realized in CTAB micelle. An overall linear concentration range of 0.05 mu M to 1 mM was achieved with the assistance of differently charged surfactants CTAB and sodium dodecyl sulfate (SDS). The probes were applied to rapidly and sensitively detect H2S levels in fetal bovine serum without any pretreatment of the sample. (C) 2013 Elsevier B.V. All rights reserved.