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Self-assembly of a short-chain ionic liquid within deep eutectic solvents

Ionic liquids (ILs) and deep eutectic solvents (DESs) are receiving increased attention from both academic and industrial research due to their immense application potential. These designer solvents are environmentally friendly in nature with tunable physicochemical properties. In the present invest...

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Autores principales: Banjare, Manoj Kumar, Behera, Kamalakanta, Satnami, Manmohan L., Pandey, Siddharth, Ghosh, Kallol K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9078456/
https://www.ncbi.nlm.nih.gov/pubmed/35542011
http://dx.doi.org/10.1039/c7ra13557b
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author Banjare, Manoj Kumar
Behera, Kamalakanta
Satnami, Manmohan L.
Pandey, Siddharth
Ghosh, Kallol K.
author_facet Banjare, Manoj Kumar
Behera, Kamalakanta
Satnami, Manmohan L.
Pandey, Siddharth
Ghosh, Kallol K.
author_sort Banjare, Manoj Kumar
collection PubMed
description Ionic liquids (ILs) and deep eutectic solvents (DESs) are receiving increased attention from both academic and industrial research due to their immense application potential. These designer solvents are environmentally friendly in nature with tunable physicochemical properties. In the present investigation, we have studied the aggregation behavior of a short-chain IL 1-butyl-3-methylimidazolium octylsulphate [Bmim][OS] within aqueous DESs using fluorescence, UV-vis, dynamic light scattering (DLS) and FT-IR spectroscopic techniques. We have prepared two DESs, ChCl–urea and ChCl–Gly, which are obtained by heating a mixture of an ammonium salt choline chloride with hydrogen bond donor urea or glycerol, respectively, in 1 : 2 molar ratios. The local microenvironment and size of the aggregates are obtained from steady state fluorescence (using pyrene and pyrene-1-carboxaldehyde as polarity probes) and DLS measurements, respectively. DLS results shows that IL [Bmim][OS] forms relatively larger micelles within the aqueous solution of DES ChCl–urea (avg. hydrodynamic radii = 209 nm) than compared to ChCl–Gly (avg. hydrodynamic radii = 135 nm). A significant decrease in the critical micelle concentration and increase in the aggregation number (N(agg)) are observed within DES solutions as compared to that in water, thus indicating that the micellization process of the IL [Bmim][OS] is much favored in the DES solutions. Molecular interactions of [Bmim][OS] in DESs are revealed from FT-IR spectroscopic investigation. Furthermore, these systems were applied to study the IL-drug binding of the antidepressant drug promazine hydrochloride (PH).
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spelling pubmed-90784562022-05-09 Self-assembly of a short-chain ionic liquid within deep eutectic solvents Banjare, Manoj Kumar Behera, Kamalakanta Satnami, Manmohan L. Pandey, Siddharth Ghosh, Kallol K. RSC Adv Chemistry Ionic liquids (ILs) and deep eutectic solvents (DESs) are receiving increased attention from both academic and industrial research due to their immense application potential. These designer solvents are environmentally friendly in nature with tunable physicochemical properties. In the present investigation, we have studied the aggregation behavior of a short-chain IL 1-butyl-3-methylimidazolium octylsulphate [Bmim][OS] within aqueous DESs using fluorescence, UV-vis, dynamic light scattering (DLS) and FT-IR spectroscopic techniques. We have prepared two DESs, ChCl–urea and ChCl–Gly, which are obtained by heating a mixture of an ammonium salt choline chloride with hydrogen bond donor urea or glycerol, respectively, in 1 : 2 molar ratios. The local microenvironment and size of the aggregates are obtained from steady state fluorescence (using pyrene and pyrene-1-carboxaldehyde as polarity probes) and DLS measurements, respectively. DLS results shows that IL [Bmim][OS] forms relatively larger micelles within the aqueous solution of DES ChCl–urea (avg. hydrodynamic radii = 209 nm) than compared to ChCl–Gly (avg. hydrodynamic radii = 135 nm). A significant decrease in the critical micelle concentration and increase in the aggregation number (N(agg)) are observed within DES solutions as compared to that in water, thus indicating that the micellization process of the IL [Bmim][OS] is much favored in the DES solutions. Molecular interactions of [Bmim][OS] in DESs are revealed from FT-IR spectroscopic investigation. Furthermore, these systems were applied to study the IL-drug binding of the antidepressant drug promazine hydrochloride (PH). The Royal Society of Chemistry 2018-02-20 /pmc/articles/PMC9078456/ /pubmed/35542011 http://dx.doi.org/10.1039/c7ra13557b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Banjare, Manoj Kumar
Behera, Kamalakanta
Satnami, Manmohan L.
Pandey, Siddharth
Ghosh, Kallol K.
Self-assembly of a short-chain ionic liquid within deep eutectic solvents
title Self-assembly of a short-chain ionic liquid within deep eutectic solvents
title_full Self-assembly of a short-chain ionic liquid within deep eutectic solvents
title_fullStr Self-assembly of a short-chain ionic liquid within deep eutectic solvents
title_full_unstemmed Self-assembly of a short-chain ionic liquid within deep eutectic solvents
title_short Self-assembly of a short-chain ionic liquid within deep eutectic solvents
title_sort self-assembly of a short-chain ionic liquid within deep eutectic solvents
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9078456/
https://www.ncbi.nlm.nih.gov/pubmed/35542011
http://dx.doi.org/10.1039/c7ra13557b
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