PMID- 31036228 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20191120 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 200 DP - 2019 Aug 1 TI - An ESIPT-based fluorescent probe for the detection of phosgene in the solution and gas phases. PG - 78-83 LID - S0039-9140(19)30247-4 [pii] LID - 10.1016/j.talanta.2019.03.003 [doi] AB - Phosgene is a highly toxic gas that poses a serious threat to public health and safety. Herein, we describe the preparation of a ratiometric fluorescence probe (Pi) bearing hydroxyl and imidazole moieties as recognition sites, and employ it for the excited-state intramolecular proton transfer-based (ESIPT-based) detection of phosgene. It is the first time that hydroxyl and imidazole have been exploited as recognition sites for phosgene. In the presence of phosgene, Pi undergoes sequential nucleophilic substitution and cyclization reactions that facilitate a rapid response, high selectivity, and excellent sensitivity (detection limit = 0.14 muM). The sensing mechanism was verified by (1)H NMR spectroscopy and high-resolution mass spectrometry. Furthermore, we fabricated a fluorescent test strip (FTS-Pi) for the detection of phosgene in the gas phase that undergoes a fluorescence color change, from green to blue, under 365 nm UV light in the presence of phosgene, which is easily observed with the naked eye. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Wu, Cuiyan AU - Wu C AD - Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China. FAU - Xu, Hai AU - Xu H AD - Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China. FAU - Li, Yaqian AU - Li Y AD - Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China. FAU - Xie, Ruihua AU - Xie R AD - Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China. FAU - Li, Peijuan AU - Li P AD - Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Functional Organometallic Materials of College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China. FAU - Pang, Xiao AU - Pang X AD - Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China. FAU - Zhou, Zile AU - Zhou Z AD - Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China. FAU - Gu, Biao AU - Gu B AD - Key Laboratory of Functional Organometallic Materials of College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China. FAU - Li, Haitao AU - Li H AD - Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China. Electronic address: haitao-li@hunnu.edu.cn. FAU - Zhang, Youyu AU - Zhang Y AD - Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China. LA - eng PT - Journal Article DEP - 20190302 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R OTO - NOTNLM OT - Detection OT - Fluorescent probe OT - Fluorescent test strip OT - Phosgene OT - Ratiometric EDAT- 2019/05/01 06:00 MHDA- 2019/05/01 06:01 CRDT- 2019/05/01 06:00 PHST- 2018/12/19 00:00 [received] PHST- 2019/02/26 00:00 [revised] PHST- 2019/03/01 00:00 [accepted] PHST- 2019/05/01 06:00 [entrez] PHST- 2019/05/01 06:00 [pubmed] PHST- 2019/05/01 06:01 [medline] AID - S0039-9140(19)30247-4 [pii] AID - 10.1016/j.talanta.2019.03.003 [doi] PST - ppublish SO - Talanta. 2019 Aug 1;200:78-83. doi: 10.1016/j.talanta.2019.03.003. Epub 2019 Mar 2.