Confinement effects on water structure in membrane lyotropic phases

Régis Guégan

doi:10.1016/j.jcis.2011.02.035

Confinement effects on water structure in membrane lyotropic phases

Régis Guégan^*

^*Corresponding author for this work

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

26 Citations (Scopus)

Abstract

The change of the water structure in aqueous solutions of the tri-ethyleneglycol mono n-decyl ether (C₁₀E₃) was studied by micro Raman scattering. The results obtained on the O-H stretching band show that the behavior of the hydrogen bonding (H-bonds) water network can be used as a probe to follow the lamellar (L_α) to sponge (L₃) phase transition. In the lamellar phase, the stack of the surfactant molecules aggregated into a two-dimensional structure (membrane) acts as a soft confinement system for the H-bond water network of which the regular tetrahedral structure is perturbed. The change of the planar organization of the membranes to a highly disordered and infinite array of bilayers in the sponge phase amplifies the surface of contact between amphiphilic surfactant and water molecules which drives a strong disruption of the regular tetrahedral H-bonding water network.

Original language	English
Pages (from-to)	485-490
Number of pages	6
Journal	Journal of Colloid And Interface Science
Volume	358
Issue number	2
DOIs	https://doi.org/10.1016/j.jcis.2011.02.035
Publication status	Published - 2011 Jun 15
Externally published	Yes

Keywords

Lamellar
Non-ionic surfactant
Raman scattering
Sponge phase
Water structure

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry

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10.1016/j.jcis.2011.02.035

Cite this

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title = "Confinement effects on water structure in membrane lyotropic phases",

abstract = "The change of the water structure in aqueous solutions of the tri-ethyleneglycol mono n-decyl ether (C10E3) was studied by micro Raman scattering. The results obtained on the O-H stretching band show that the behavior of the hydrogen bonding (H-bonds) water network can be used as a probe to follow the lamellar (Lα) to sponge (L3) phase transition. In the lamellar phase, the stack of the surfactant molecules aggregated into a two-dimensional structure (membrane) acts as a soft confinement system for the H-bond water network of which the regular tetrahedral structure is perturbed. The change of the planar organization of the membranes to a highly disordered and infinite array of bilayers in the sponge phase amplifies the surface of contact between amphiphilic surfactant and water molecules which drives a strong disruption of the regular tetrahedral H-bonding water network.",

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author = "R{\'e}gis Gu{\'e}gan",

year = "2011",

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AB - The change of the water structure in aqueous solutions of the tri-ethyleneglycol mono n-decyl ether (C10E3) was studied by micro Raman scattering. The results obtained on the O-H stretching band show that the behavior of the hydrogen bonding (H-bonds) water network can be used as a probe to follow the lamellar (Lα) to sponge (L3) phase transition. In the lamellar phase, the stack of the surfactant molecules aggregated into a two-dimensional structure (membrane) acts as a soft confinement system for the H-bond water network of which the regular tetrahedral structure is perturbed. The change of the planar organization of the membranes to a highly disordered and infinite array of bilayers in the sponge phase amplifies the surface of contact between amphiphilic surfactant and water molecules which drives a strong disruption of the regular tetrahedral H-bonding water network.

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KW - Non-ionic surfactant

KW - Raman scattering

KW - Sponge phase

KW - Water structure

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Confinement effects on water structure in membrane lyotropic phases

Abstract

Keywords

ASJC Scopus subject areas

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