Effect of dimethyl sulfoxide on the lamellar phase of a zwitterionic surfactant

Mónica Laura Galaz-Montoya; Eduardo Larios-Rodríguez; Rogelio Gámez-Corrales; Amir Maldonado

doi:10.1080/01932690903328929

Effect of dimethyl sulfoxide on the lamellar phase of a zwitterionic surfactant

Mónica Laura Galaz-Montoya, Eduardo Larios-Rodríguez, Rogelio Gámez-Corrales, Amir Maldonado^*

^*Corresponding author for this work

Departamento de Física

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We study the effect of dimethyl sulfoxide, a solvent used in biological applications, on the lamellar phases of a zwitterionic surfactant. We used solutions with different proportions of dimethyl sulfoxide/water as solvents in order to analyze the effect on the lamellar phases (regular stacks of surfactant bilayers). The samples were analyzed by macroscopic visual observation, polarized light microscopy, linear rheology, and electron microscopy experiments. The results show that the variation of the dimethyl sulfoxide proportion in the solvent increases the curvature of the bilayers which leads to a transformation from a lamellar phase to an isotropic phase.

Original language	English
Pages (from-to)	735-742
Number of pages	8
Journal	Journal of Dispersion Science and Technology
Volume	31
Issue number	6
DOIs	https://doi.org/10.1080/01932690903328929
State	Published - Jun 2010

Bibliographical note

Funding Information:
Received 5 January 2009; accepted 31 January 2009. M.L.G.-M. and E.L.-R. thank a fellowship from Conacyt (Mexico). Address correspondence to Amir Maldonado, Departamento de Física, Universidad de Sonora, Apdo. Postal 1626, 83000 Hermosillo, Sonora, Mexico. E-mail: [email protected]

Keywords

Dimethyl sulfoxide
Electron microscopy
Lamellar phase
Rheology
Zwitterionic surfactant

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10.1080/01932690903328929

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abstract = "We study the effect of dimethyl sulfoxide, a solvent used in biological applications, on the lamellar phases of a zwitterionic surfactant. We used solutions with different proportions of dimethyl sulfoxide/water as solvents in order to analyze the effect on the lamellar phases (regular stacks of surfactant bilayers). The samples were analyzed by macroscopic visual observation, polarized light microscopy, linear rheology, and electron microscopy experiments. The results show that the variation of the dimethyl sulfoxide proportion in the solvent increases the curvature of the bilayers which leads to a transformation from a lamellar phase to an isotropic phase.",

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AU - Gámez-Corrales, Rogelio

AU - Maldonado, Amir

N1 - Funding Information: Received 5 January 2009; accepted 31 January 2009. M.L.G.-M. and E.L.-R. thank a fellowship from Conacyt (Mexico). Address correspondence to Amir Maldonado, Departamento de Física, Universidad de Sonora, Apdo. Postal 1626, 83000 Hermosillo, Sonora, Mexico. E-mail: [email protected]

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N2 - We study the effect of dimethyl sulfoxide, a solvent used in biological applications, on the lamellar phases of a zwitterionic surfactant. We used solutions with different proportions of dimethyl sulfoxide/water as solvents in order to analyze the effect on the lamellar phases (regular stacks of surfactant bilayers). The samples were analyzed by macroscopic visual observation, polarized light microscopy, linear rheology, and electron microscopy experiments. The results show that the variation of the dimethyl sulfoxide proportion in the solvent increases the curvature of the bilayers which leads to a transformation from a lamellar phase to an isotropic phase.

AB - We study the effect of dimethyl sulfoxide, a solvent used in biological applications, on the lamellar phases of a zwitterionic surfactant. We used solutions with different proportions of dimethyl sulfoxide/water as solvents in order to analyze the effect on the lamellar phases (regular stacks of surfactant bilayers). The samples were analyzed by macroscopic visual observation, polarized light microscopy, linear rheology, and electron microscopy experiments. The results show that the variation of the dimethyl sulfoxide proportion in the solvent increases the curvature of the bilayers which leads to a transformation from a lamellar phase to an isotropic phase.

KW - Dimethyl sulfoxide

KW - Electron microscopy

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KW - Rheology

KW - Zwitterionic surfactant

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Effect of dimethyl sulfoxide on the lamellar phase of a zwitterionic surfactant

Abstract

Bibliographical note

Keywords

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