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The Nature of Aqueous Solutions of a Cationic Calix[4]arene: A Comparative Study of Dye–Calixarene and Dye–Surfactant Interactions

Among different types of calixarenes, the water–soluble ones are of especial interest because of their possible applications in biochemical research. In order to elucidate the nature of aqueous solutions of a cationic amphiphilic calixarene, substituted tetrapropoxy-calix[4]arene bearing hydrophilic...

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Autores principales: Mchedlov-PetrossyanL. N. Vilkova, N. O., Vodolazkaya, N. A., Yakubovskaya, A. G., Rodik, R. V., Boyko, V. I., Kalchenko, V. I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2006
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3926535/
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author Mchedlov-PetrossyanL. N. Vilkova, N. O.
Vodolazkaya, N. A.
Yakubovskaya, A. G.
Rodik, R. V.
Boyko, V. I.
Kalchenko, V. I.
author_facet Mchedlov-PetrossyanL. N. Vilkova, N. O.
Vodolazkaya, N. A.
Yakubovskaya, A. G.
Rodik, R. V.
Boyko, V. I.
Kalchenko, V. I.
author_sort Mchedlov-PetrossyanL. N. Vilkova, N. O.
collection PubMed
description Among different types of calixarenes, the water–soluble ones are of especial interest because of their possible applications in biochemical research. In order to elucidate the nature of aqueous solutions of a cationic amphiphilic calixarene, substituted tetrapropoxy-calix[4]arene bearing hydrophilic choline groups at the upper rim, we studied vis–spectroscopically the influence of the above system on the acid–base behavior of three indicator dyes, namely, 2,4-dinitrophenol, bromophenol blue, and N,N(/)-dioctadecylrhodamine, at constant ionic strength of 0.05 M, maintained with NaCl addition. Simultaneously, ‘apparent’ ionization constants, [Formula: see text] , of the same dyes were determined in the presence of common cationic surfactant micelles. Within the concentration range from 1.0×10(–5) to 0.01 M, the aforementioned water–soluble calixarene displays effects similar to those of micelles of cetyltrimethylammonium bromide (or chloride). The shifts of the absorption and emission bands in the visible region, as well as the alterations of the [Formula: see text] values against the ‘aqueous’ ones appeared to be very similar in aqueous solutions of both calix[4]arene and cationic surfactant. A conclusion can be made about aggregation (or association), i.e., micelle formation of the cationic calix[4]arene under study.
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spelling pubmed-39265352014-02-18 The Nature of Aqueous Solutions of a Cationic Calix[4]arene: A Comparative Study of Dye–Calixarene and Dye–Surfactant Interactions Mchedlov-PetrossyanL. N. Vilkova, N. O. Vodolazkaya, N. A. Yakubovskaya, A. G. Rodik, R. V. Boyko, V. I. Kalchenko, V. I. Sensors (Basel) Full Research Article Among different types of calixarenes, the water–soluble ones are of especial interest because of their possible applications in biochemical research. In order to elucidate the nature of aqueous solutions of a cationic amphiphilic calixarene, substituted tetrapropoxy-calix[4]arene bearing hydrophilic choline groups at the upper rim, we studied vis–spectroscopically the influence of the above system on the acid–base behavior of three indicator dyes, namely, 2,4-dinitrophenol, bromophenol blue, and N,N(/)-dioctadecylrhodamine, at constant ionic strength of 0.05 M, maintained with NaCl addition. Simultaneously, ‘apparent’ ionization constants, [Formula: see text] , of the same dyes were determined in the presence of common cationic surfactant micelles. Within the concentration range from 1.0×10(–5) to 0.01 M, the aforementioned water–soluble calixarene displays effects similar to those of micelles of cetyltrimethylammonium bromide (or chloride). The shifts of the absorption and emission bands in the visible region, as well as the alterations of the [Formula: see text] values against the ‘aqueous’ ones appeared to be very similar in aqueous solutions of both calix[4]arene and cationic surfactant. A conclusion can be made about aggregation (or association), i.e., micelle formation of the cationic calix[4]arene under study. Molecular Diversity Preservation International (MDPI) 2006-08-24 /pmc/articles/PMC3926535/ Text en © 2006 by MDPI (http://www.mdpi.org). Reproduction is permitted for noncommercial purposes.
spellingShingle Full Research Article
Mchedlov-PetrossyanL. N. Vilkova, N. O.
Vodolazkaya, N. A.
Yakubovskaya, A. G.
Rodik, R. V.
Boyko, V. I.
Kalchenko, V. I.
The Nature of Aqueous Solutions of a Cationic Calix[4]arene: A Comparative Study of Dye–Calixarene and Dye–Surfactant Interactions
title The Nature of Aqueous Solutions of a Cationic Calix[4]arene: A Comparative Study of Dye–Calixarene and Dye–Surfactant Interactions
title_full The Nature of Aqueous Solutions of a Cationic Calix[4]arene: A Comparative Study of Dye–Calixarene and Dye–Surfactant Interactions
title_fullStr The Nature of Aqueous Solutions of a Cationic Calix[4]arene: A Comparative Study of Dye–Calixarene and Dye–Surfactant Interactions
title_full_unstemmed The Nature of Aqueous Solutions of a Cationic Calix[4]arene: A Comparative Study of Dye–Calixarene and Dye–Surfactant Interactions
title_short The Nature of Aqueous Solutions of a Cationic Calix[4]arene: A Comparative Study of Dye–Calixarene and Dye–Surfactant Interactions
title_sort nature of aqueous solutions of a cationic calix[4]arene: a comparative study of dye–calixarene and dye–surfactant interactions
topic Full Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3926535/
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