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A sensitive and selective BINOL based ratiometric fluorescence sensor for the detection of cyanide ions

A highly selective, novel BINOL based sensor BBCN has been developed for the fluorescent ratiometric detection of cyanide ions (CN(−)). The optical study revealed that BBCN exhibited unique spectral changes only with cyanide ions in the presence of other competing ions. Besides, an apparent fluoresc...

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Autores principales: Munusamy, Sathishkumar, Swaminathan, Sathish, Jothi, Dhanapal, Muralidharan, Vivek Panyam, Iyer, Sathiyanarayanan Kulathu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9029250/
https://www.ncbi.nlm.nih.gov/pubmed/35481207
http://dx.doi.org/10.1039/d1ra01213d
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author Munusamy, Sathishkumar
Swaminathan, Sathish
Jothi, Dhanapal
Muralidharan, Vivek Panyam
Iyer, Sathiyanarayanan Kulathu
author_facet Munusamy, Sathishkumar
Swaminathan, Sathish
Jothi, Dhanapal
Muralidharan, Vivek Panyam
Iyer, Sathiyanarayanan Kulathu
author_sort Munusamy, Sathishkumar
collection PubMed
description A highly selective, novel BINOL based sensor BBCN has been developed for the fluorescent ratiometric detection of cyanide ions (CN(−)). The optical study revealed that BBCN exhibited unique spectral changes only with cyanide ions in the presence of other competing ions. Besides, an apparent fluorescent colour change from green to blue was observed. A clear linear relationship was observed between the fluorescence ratiometric ratio of BBCN and the concentration of CN(−) with a reasonably low detection limit (LOD) of 189 nM (507 ppb). The optical response was due to the nucleophilic addition of CN(−) to the dicyanovinyl group of the sensor, which compromises the probe's intramolecular charge transfer. This mechanism was well confirmed by Job's plot, (1)H-NMR and ESI-MS studies. BBCN showed immediate spectral response towards (1 second) CN(−) and detection could be realized in a broad pH window. Furthermore, the practical utility of BBCN was studied by test paper-based analysis and the detection of CN(−) in various water resources.
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spelling pubmed-90292502022-04-26 A sensitive and selective BINOL based ratiometric fluorescence sensor for the detection of cyanide ions Munusamy, Sathishkumar Swaminathan, Sathish Jothi, Dhanapal Muralidharan, Vivek Panyam Iyer, Sathiyanarayanan Kulathu RSC Adv Chemistry A highly selective, novel BINOL based sensor BBCN has been developed for the fluorescent ratiometric detection of cyanide ions (CN(−)). The optical study revealed that BBCN exhibited unique spectral changes only with cyanide ions in the presence of other competing ions. Besides, an apparent fluorescent colour change from green to blue was observed. A clear linear relationship was observed between the fluorescence ratiometric ratio of BBCN and the concentration of CN(−) with a reasonably low detection limit (LOD) of 189 nM (507 ppb). The optical response was due to the nucleophilic addition of CN(−) to the dicyanovinyl group of the sensor, which compromises the probe's intramolecular charge transfer. This mechanism was well confirmed by Job's plot, (1)H-NMR and ESI-MS studies. BBCN showed immediate spectral response towards (1 second) CN(−) and detection could be realized in a broad pH window. Furthermore, the practical utility of BBCN was studied by test paper-based analysis and the detection of CN(−) in various water resources. The Royal Society of Chemistry 2021-04-27 /pmc/articles/PMC9029250/ /pubmed/35481207 http://dx.doi.org/10.1039/d1ra01213d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Munusamy, Sathishkumar
Swaminathan, Sathish
Jothi, Dhanapal
Muralidharan, Vivek Panyam
Iyer, Sathiyanarayanan Kulathu
A sensitive and selective BINOL based ratiometric fluorescence sensor for the detection of cyanide ions
title A sensitive and selective BINOL based ratiometric fluorescence sensor for the detection of cyanide ions
title_full A sensitive and selective BINOL based ratiometric fluorescence sensor for the detection of cyanide ions
title_fullStr A sensitive and selective BINOL based ratiometric fluorescence sensor for the detection of cyanide ions
title_full_unstemmed A sensitive and selective BINOL based ratiometric fluorescence sensor for the detection of cyanide ions
title_short A sensitive and selective BINOL based ratiometric fluorescence sensor for the detection of cyanide ions
title_sort sensitive and selective binol based ratiometric fluorescence sensor for the detection of cyanide ions
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9029250/
https://www.ncbi.nlm.nih.gov/pubmed/35481207
http://dx.doi.org/10.1039/d1ra01213d
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