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Title: Dynamical shapes of droplets of cyclodextrin/surfactants solutions
Author: Romero-Arias, José
Luviano, Alberto S.
Costas, Miguel
Hernández Machado, Aurora
Barrio, Rafael A.
Keywords: Ciclodextrines
Tensió superficial
Agents tensioactius
Surface tension
Surface active agents
Issue Date: 2022
Publisher: Nature Publishing Group
Abstract: We present a series of experiments with droplets of aqueous cyclodextrin-surfactant solutions, in which the volume is reduced after the equilibrium spherical shape is reached. The fnal shape of the drop after this perturbation is found to be dependent on the concentration of inclusion complexes in the bulk of the solution. These inclusion complexes are formed by two cyclodextrin molecules and one surfactat molecule. We propose a model to describe these dynamical processes. Dipole-dipole interactions on the surface of the drop trigger a competition between water surface tension and dipole-dipole interaction energies. The results of the model reproduce the spherical and rod-like shapes found in the experiments.
Note: Reproducció del document publicat a:
It is part of: Scientific Reports, 2022, vol. 12, num. 1, p. 1-6
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ISSN: 2045-2322
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)
Articles publicats en revistes (Institut de Nanociència i Nanotecnologia (IN2UB))

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