Confinement effects on water structure in membrane lyotropic phases

Research output: Contribution to journalArticle

15 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 (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.

Original languageEnglish
Pages (from-to)485-490
Number of pages6
JournalJournal of Colloid and Interface Science
Volume358
Issue number2
DOIs
Publication statusPublished - 2011 Jun 15
Externally publishedYes

Fingerprint

Membranes
Water
Surface-Active Agents
Hydrogen bonds
Surface active agents
Membrane structures
Molecules
Ether
Stretching
Raman scattering
Ethers
Phase transitions
Hydrogen

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

Cite this

Confinement effects on water structure in membrane lyotropic phases. / Guegan, Regis.

In: Journal of Colloid and Interface Science, Vol. 358, No. 2, 15.06.2011, p. 485-490.

Research output: Contribution to journalArticle

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