title: Relationship between Structure and Fluctuations of Lipid Nonlamellar Phases Deposited at the Solid-Liquid Interface.
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 (HII) 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 HIIphase. 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 HIIfilm was more flexible, appearing as a modified undulation spectrum of the cylinders due to the interaction with the substrate.
authors.affiliation: Physical Chemistry, Department of Chemistry, Lund University , P.O. Box 124, SE-22100 Lund, Sweden.|NanoLund, Lund University , P.O. Box 118, SE-22100 Lund, Sweden.
authors.forename: Tommy
authors.identifier: 0000-0001-9420-2217
authors.initials: T
authors.lastname: Nylander
authors.affiliation: Max-Planck-Institute for Solid State Research, Outstation at MLZ , Lichtenbergstr. 1, 85747 Garching, Germany.|Technical University of Munich , Lichtenbergstr. 1, 85747 Garching, Germany.
authors.forename: Olaf
authors.initials: O
authors.lastname: Soltwedel
authors.affiliation: Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz-Zentrum (MLZ), Forschungszentrum Jülich GmbH , Lichtenbergstr. 1, 85747 Garching, Germany.
authors.forename: Marina
authors.initials: M
authors.lastname: Ganeva
authors.affiliation: Physical Chemistry, Department of Chemistry, Lund University , P.O. Box 124, SE-22100 Lund, Sweden.
authors.forename: Christopher
authors.initials: C
authors.lastname: Hirst
authors.affiliation: Physical Chemistry, Department of Chemistry, Lund University , P.O. Box 124, SE-22100 Lund, Sweden.
authors.forename: James
authors.initials: J
authors.lastname: Holdaway
authors.affiliation: Physical Chemistry, Department of Chemistry, Lund University , P.O. Box 124, SE-22100 Lund, Sweden.
authors.forename: Marianna Yanez
authors.initials: MY
authors.lastname: Arteta
authors.affiliation: Physical Chemistry, Department of Chemistry, Lund University , P.O. Box 124, SE-22100 Lund, Sweden.|Camurus AB , Ideon Science Park, Gamma Building, Sölvegatan 41, SE-22379 Lund, Sweden.
authors.forename: Maria
authors.initials: M
authors.lastname: Wadsäter
authors.affiliation: Camurus AB , Ideon Science Park, Gamma Building, Sölvegatan 41, SE-22379 Lund, Sweden.|Biomedical Science, Faculty of Health and Society, Malmö University , SE-20506 Malmö, Sweden.
authors.forename: Justas
authors.initials: J
authors.lastname: Barauskas
authors.affiliation: Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz-Zentrum (MLZ), Forschungszentrum Jülich GmbH , Lichtenbergstr. 1, 85747 Garching, Germany.
authors.forename: Henrich
authors.initials: H
authors.lastname: Frielinghaus
authors.affiliation: Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz-Zentrum (MLZ), Forschungszentrum Jülich GmbH , Lichtenbergstr. 1, 85747 Garching, Germany.
authors.forename: Olaf
authors.initials: O
authors.lastname: Holderer