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1997 | 91 | 5 | 953-960
Article title

X-Ray Diffraction and NMR Studies on Mixtures of Non-Ionic Surfactant (C_{12}EO_{2}) and Phospholipids (POPC)

Content
Title variants
Languages of publication
EN
Abstracts
EN
We studied the temperature and concentration dependence of the POPC/C_{12}EO_{2}/water ternary system and identified and characterized the different phases occurring. The thermal behaviour is slightly dependent on the surfactant to lipid molar ratio R_{s/l}. At low surfactant content the behaviour is similar to the binary lipid/water system. Similarly at low lipid contents the system behaves similarly to the surfactant/water mixture. However, at molar ratios R_{s/l} between 2 and 3 a new hexagonal phase forms which is peculiar to the mixture. ^{2}H NMR measurements indicated the existence of a lamellar phase containing also curved surfaces additional to the flat ones. The surface area per surfactant molecule was calculated to 0.23 nm^{2} which is in good agreement with the cross-section of a paraffinic chain.
Keywords
EN
Year
Volume
91
Issue
5
Pages
953-960
Physical description
Dates
published
1997-05
Contributors
author
  • Universität Leipzig, Fachbereich Physik, Linnéstraße 5, 04103 Leipzig, Germany
author
  • Institute of Chemistry, University of Sao Paulo, CP 26077, 05599-970 Sao Paulo SP, Brazil
author
  • European Molecular Biology Laboratory - EMBL, Outstation at DESY, Notkestraße 85, 22603 Hamburg, Germany
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv91z520kz
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