The effect of water in THF/water mixtures on CMC, aggregation sizes, and fluorescence quenching of a new calix[4]resorcinarene macrocycle

María Virginia Sosa; Kashif Hussain; Eduardo D. Prieto; Tatiana Da Ros; M. Raza Shah; Ezequiel Wolcan

doi:10.1039/D4CP00687A

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The effect of water in THF/water mixtures on CMC, aggregation sizes, and fluorescence quenching of a new calix[4]resorcinarene macrocycle†

María Virginia Sosa,^a Kashif Hussain,^b Eduardo D. Prieto,^ad Tatiana Da Ros,

^c M. Raza Shah

^b and Ezequiel Wolcan

*^a

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* Corresponding authors

^a Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina
E-mail: ewolcan@inifta.unlp.edu.ar

^b H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan

^c INSTM, Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, Trieste, Italy

^d Departamento de Cs. Biológicas, Facultad de Ciencias Exactas (UNLP), Instituto Ciencias de la Salud, Universidad Nacional Arturo Jauretche (UNAJ), Argentina

Abstract

This study explores how water content modulates the self-assembly and fluorescence behavior of a novel calixarene, C1. C1 forms large, flattened structures in pure THF, but water addition triggers a transition to smaller, unimodal clusters. A critical micellar concentration (CMC) is identified, decreasing with increasing water content. Fluorescence quenching is observed upon water addition, attributed to nonradiative deactivation. These findings highlight water as a key regulator of C1's assembly and fluorescence, paving the way for further development of water-responsive calixarene systems.

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Article information

DOI: https://doi.org/10.1039/D4CP00687A
Article type: Paper
Submitted: 16 Feb 2024
Accepted: 13 Mar 2024
First published: 04 Apr 2024

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Phys. Chem. Chem. Phys., 2024,26, 11933-11944

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The effect of water in THF/water mixtures on CMC, aggregation sizes, and fluorescence quenching of a new calix[4]resorcinarene macrocycle

M. V. Sosa, K. Hussain, E. D. Prieto, T. Da Ros, M. R. Shah and E. Wolcan, Phys. Chem. Chem. Phys., 2024, 26, 11933 DOI: 10.1039/D4CP00687A

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Physical Chemistry Chemical Physics

The effect of water in THF/water mixtures on CMC, aggregation sizes, and fluorescence quenching of a new calix[4]resorcinarene macrocycle†

Abstract

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The effect of water in THF/water mixtures on CMC, aggregation sizes, and fluorescence quenching of a new calix[4]resorcinarene macrocycle

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