Direct Imaging of Lamellar Phases by Cryo-Transmission Electron Microscopy

We present the first direct imaging of swollen lamellar phases by transmission electron microscopy on thin vitrified liquid films. We were able to obtain good contrast of the surfactant membranes. The micrographs allow the description of the microstructure of the phases and demonstrate the differenc...

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Bibliographic Details
Published inLangmuir Vol. 13; no. 26; pp. 7287 - 7292
Main Authors Ponsinet, Virginie, Talmon, Yeshayahu
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 24.12.1997
Subjects
Chemistry
Exact sciences and technology
General and physical chemistry
Surface physical chemistry
Surface-active agents: properties
Sodium Compounds
Anionic surfactant
Lamellar structure
Transmission electron microscopy
Membrane
Small angle X ray scattering
Lyotropic state
Experimental study
Lauryl sulfate
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Summary:We present the first direct imaging of swollen lamellar phases by transmission electron microscopy on thin vitrified liquid films. We were able to obtain good contrast of the surfactant membranes. The micrographs allow the description of the microstructure of the phases and demonstrate the differences between electrostatically and sterically stabilized lamellar phases:  the first ones consist of rigid and well-ordered membranes whereas the latter consist of soft and fluctuating membranes.
Bibliography:Abstract published in Advance ACS Abstracts, December 1, 1997.
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istex:03678C4BD8A42D12CB1E9F7CD23CE37C3FB1B029
ISSN:0743-7463
1520-5827
DOI:10.1021/la970779z