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Furo[3,2-c]coumarin-derived Fe(3+) Selective Fluorescence Sensor: Synthesis, Fluorescence Study and Application to Water Analysis
Furocoumarin (furo[3,2-c]coumarin) derivatives have been synthesized from single step, high yielding (82–92%) chemistry involving a 4-hydroxycoumarin 4 + 1 cycloaddition reaction. They are characterized by FTIR, (1)H-NMR, and, for the first time, a comprehensive UV-Vis and fluorescence spectroscopy...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7198544/ https://www.ncbi.nlm.nih.gov/pubmed/32366859 http://dx.doi.org/10.1038/s41598-020-63262-7 |
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author | Sarih, Norfatirah Muhamad Ciupa, Alexander Moss, Stephen Myers, Peter Slater, Anna Grace Abdullah, Zanariah Tajuddin, Hairul Anuar Maher, Simon |
author_facet | Sarih, Norfatirah Muhamad Ciupa, Alexander Moss, Stephen Myers, Peter Slater, Anna Grace Abdullah, Zanariah Tajuddin, Hairul Anuar Maher, Simon |
author_sort | Sarih, Norfatirah Muhamad |
collection | PubMed |
description | Furocoumarin (furo[3,2-c]coumarin) derivatives have been synthesized from single step, high yielding (82–92%) chemistry involving a 4-hydroxycoumarin 4 + 1 cycloaddition reaction. They are characterized by FTIR, (1)H-NMR, and, for the first time, a comprehensive UV-Vis and fluorescence spectroscopy study has been carried out to determine if these compounds can serve as useful sensors. Based on the fluorescence data, the most promising furocoumarin derivative (2-(cyclohexylamino)-3-phenyl-4H-furo[3,2-c]chromen-4-one, FH), exhibits strong fluorescence (ФF = 0.48) with long fluorescence lifetime (5.6 ns) and large Stokes’ shift, suggesting FH could be used as a novel fluorescent chemosensor. FH exhibits a highly selective, sensitive and instant turn-off fluorescence response to Fe(3+) over other metal ions which was attributed to a charge transfer mechanism. Selectivity was demonstrated against 13 other competing metal ions (Na(+), K(+), Mg(2+), Ca(2+), Mn(2+), Fe(2+), Al(3+), Ni(2+), Cu(2+), Zn(2+), Co(2+), Pb(2+) and Ru(3+)) and aqueous compatibility was demonstrated in 10% MeOH-H(2)O solution. The FH sensor coordinates Fe(3+) in a 1:2 stoichiometry with a binding constant, K(a) = 5.25 × 10(3) M(−1). This novel sensor has a limit of detection of 1.93 µM, below that of the US environmental protection agency guidelines (5.37 µM), with a linear dynamic range of ~28 (~2–30 µM) and an R(2) value of 0.9975. As an exemplar application we demonstrate the potential of this sensor for the rapid measurement of Fe(3+) in mineral and tap water samples demonstrating the real-world application of FH as a “turn off” fluorescence sensor. |
format | Online Article Text |
id | pubmed-7198544 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-71985442020-05-08 Furo[3,2-c]coumarin-derived Fe(3+) Selective Fluorescence Sensor: Synthesis, Fluorescence Study and Application to Water Analysis Sarih, Norfatirah Muhamad Ciupa, Alexander Moss, Stephen Myers, Peter Slater, Anna Grace Abdullah, Zanariah Tajuddin, Hairul Anuar Maher, Simon Sci Rep Article Furocoumarin (furo[3,2-c]coumarin) derivatives have been synthesized from single step, high yielding (82–92%) chemistry involving a 4-hydroxycoumarin 4 + 1 cycloaddition reaction. They are characterized by FTIR, (1)H-NMR, and, for the first time, a comprehensive UV-Vis and fluorescence spectroscopy study has been carried out to determine if these compounds can serve as useful sensors. Based on the fluorescence data, the most promising furocoumarin derivative (2-(cyclohexylamino)-3-phenyl-4H-furo[3,2-c]chromen-4-one, FH), exhibits strong fluorescence (ФF = 0.48) with long fluorescence lifetime (5.6 ns) and large Stokes’ shift, suggesting FH could be used as a novel fluorescent chemosensor. FH exhibits a highly selective, sensitive and instant turn-off fluorescence response to Fe(3+) over other metal ions which was attributed to a charge transfer mechanism. Selectivity was demonstrated against 13 other competing metal ions (Na(+), K(+), Mg(2+), Ca(2+), Mn(2+), Fe(2+), Al(3+), Ni(2+), Cu(2+), Zn(2+), Co(2+), Pb(2+) and Ru(3+)) and aqueous compatibility was demonstrated in 10% MeOH-H(2)O solution. The FH sensor coordinates Fe(3+) in a 1:2 stoichiometry with a binding constant, K(a) = 5.25 × 10(3) M(−1). This novel sensor has a limit of detection of 1.93 µM, below that of the US environmental protection agency guidelines (5.37 µM), with a linear dynamic range of ~28 (~2–30 µM) and an R(2) value of 0.9975. As an exemplar application we demonstrate the potential of this sensor for the rapid measurement of Fe(3+) in mineral and tap water samples demonstrating the real-world application of FH as a “turn off” fluorescence sensor. Nature Publishing Group UK 2020-05-04 /pmc/articles/PMC7198544/ /pubmed/32366859 http://dx.doi.org/10.1038/s41598-020-63262-7 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Sarih, Norfatirah Muhamad Ciupa, Alexander Moss, Stephen Myers, Peter Slater, Anna Grace Abdullah, Zanariah Tajuddin, Hairul Anuar Maher, Simon Furo[3,2-c]coumarin-derived Fe(3+) Selective Fluorescence Sensor: Synthesis, Fluorescence Study and Application to Water Analysis |
title | Furo[3,2-c]coumarin-derived Fe(3+) Selective Fluorescence Sensor: Synthesis, Fluorescence Study and Application to Water Analysis |
title_full | Furo[3,2-c]coumarin-derived Fe(3+) Selective Fluorescence Sensor: Synthesis, Fluorescence Study and Application to Water Analysis |
title_fullStr | Furo[3,2-c]coumarin-derived Fe(3+) Selective Fluorescence Sensor: Synthesis, Fluorescence Study and Application to Water Analysis |
title_full_unstemmed | Furo[3,2-c]coumarin-derived Fe(3+) Selective Fluorescence Sensor: Synthesis, Fluorescence Study and Application to Water Analysis |
title_short | Furo[3,2-c]coumarin-derived Fe(3+) Selective Fluorescence Sensor: Synthesis, Fluorescence Study and Application to Water Analysis |
title_sort | furo[3,2-c]coumarin-derived fe(3+) selective fluorescence sensor: synthesis, fluorescence study and application to water analysis |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7198544/ https://www.ncbi.nlm.nih.gov/pubmed/32366859 http://dx.doi.org/10.1038/s41598-020-63262-7 |
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