Relationship between Structure and Fluctuations of Lipid Nonlamellar Phases Deposited at the Solid-Liquid Interface

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Relationship between Structure and Fluctuations of Lipid Nonlamellar Phases Deposited at the Solid-Liquid Interface

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Publication Article, peer reviewed scientific
Title Relationship between Structure and Fluctuations of Lipid Nonlamellar Phases Deposited at the Solid-Liquid Interface
Author Nylander, Tommy ; Soltwedel, Olaf ; Ganeya, Marina ; Hirst, Christopher ; Holdaway, James ; Arteta, Marianna Yanez ; Wadsäter, Maria ; Barauskas, Justas ; Frielinghaus, Henrich ; Holderer, Olaf
Date 2017
English abstract
The structure and dynamics of nanostructure films formed by mixtures of soy phosphatidylcholine and glycerol dioleate at the silicon aqueous interface were studied by grazing incidence neutron spin echo spectroscopy (GINSES), specular and off-specular neutron, reflectometry, and small-angle X-ray diffraction. Reverse hexagonal (Hr) and micellar cubic phase (Fd3m) layers at: the solid liquid interface have been identified with neutron reflectometry measurements. A preferred orientation of the liquid crystalline (LC) domains was observed only for the anisotropic,H-II phase. The size of the LC domains was found to be about 1 micrometer as estimated from the width of the diffraction peaks. GINSES revealed that the cubic phase forms rather rigid films. In comparison, the HE film was more flexible, appearing as a modified undulation spectrum of the cylinders due to the interaction with the substrate.
DOI https://doi.org/10.1021/acs.jpcb.6b11038 (link to publisher's fulltext.)
Publisher American Chemical Society
Host/Issue Journal of Physical Chemistry B;13
Volume 121
ISSN 1520-6106
Pages 2705-2711
Language eng (iso)
Subject Chemistry, Physical
Sciences
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/23593 Permalink to this page
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