% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@INPROCEEDINGS{Frielinghaus:849584,
      author       = {Frielinghaus, Henrich},
      title        = {{S}tructure and {D}ynamics at the solid-liquid interface},
      school       = {Ibaraki U},
      reportid     = {FZJ-2018-03763},
      year         = {2018},
      abstract     = {Microemulsions and lipid bilayer stacks have been studied
                      adjacent to the solid hydrophobic interface using grazing
                      incidence small angle neutron scattering (GISANS), grazing
                      incidence neutron spin echo spectroscopy (GINSES), and
                      neutron reflectometry (NR). The microemulsions display
                      lamellar order while the structure is bicontinuous in the
                      bulk [1]. The dynamics at the interface are approx. three
                      times faster than in the bulk [2]. This coincides with the
                      lubrication effect that describes the facilitated flow of
                      the lamellar structure along the interface. The whole
                      scenario was taken to a volume sample where interfaces were
                      introduced by clay particles (at approx. $1\%$ vol.
                      content). Small platelets induce a rather weakly ordered
                      lamellar structure while the large platelets have a
                      well-ordered lamellar structure at the interface [3]. In
                      rheology experiments the quality of the lamellar structure
                      can be monitored as higher and lower viscosities, and
                      therefore is a macroscopic confirmation of the lubrication
                      effect [4]. For some examples of crude oils we could
                      considerably lower the viscosity using clay particles. When
                      the particle content is raised further to $2\%$ to $3\%vol,$
                      the lamellar order prevails, and the capillary condensation
                      phase transition for microemulsions is observed [5]. The
                      lipid bilayer system displays lamellar order at low
                      concentrations of a disturbing molecule ibuprofen. The
                      structure can turn to hexagonal when high concentrations of
                      ibuprofen are added [6]. The lamellar system displays an
                      astonishing viscoelastic behavior on the nanosecond
                      timescale when applying GINSES [7]. This behavior is
                      explained using a theory for lamellar stacks at an
                      interface. Viscoelasticity of membrane stacks is highly
                      interesting for mammalian joints where shocks could be
                      dissipated over larger areas.All in all this rich
                      information about near surface dynamics became accessible
                      using a neutron resonator [8], which enhances the neutron
                      wave field in the sample and, therefore, the scattering
                      intensity for these difficult experiments.Keywords: GISANS,
                      GINSES, Near Surface Structure and Dynamics, Boundary
                      Condition, Industrial ApplicationsReferences[1] M. Kerscher
                      et al. Phys. Rev. E 2011, 83, 030401.[2] H. Frielinghaus et
                      al. Phys. Rev. E 2012, 85, 041408.[3] F. Lipfert et al.
                      Nanoscale 2015, 7, 2578.[4] M. Gvaramia et al. arXiv 2018,
                      1709.05198 $\&$ submitted to Sci. Reports 2018.[5] M.
                      Gvaramia et al. submitted to J. Coll. Interf. Sci. 2018.[6]
                      S. Jaksch et al. Phys. Rev. E 2015, 91, 022716.[7] S. Jaksch
                      et al. Sci. Reports 2017, 7, 4417.[8] H. Frielinghaus et al.
                      Nucl. Instr. Meth. Phys. Res. A 2017, 871, 71.},
      month         = {May},
      date          = {2018-05-30},
      organization  = {3rd Internatoinal Symposium of Quantum
                       Beam Science at Ibaraki University,,
                       Mito (Japan), 30 May 2018 - 2 Jun 2018},
      subtyp        = {Plenary/Keynote},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6G15 - FRM II / MLZ (POF3-6G15) / 6215 - Soft Matter,
                      Health and Life Sciences (POF3-621)},
      pid          = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15 /
                      G:(DE-HGF)POF3-6215},
      experiment   = {EXP:(DE-MLZ)KWS1-20140101 / EXP:(DE-MLZ)J-NSE-20140101 /
                      EXP:(DE-MLZ)MARIA-20140101},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/849584},
}