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@INPROCEEDINGS{Frielinghaus:849991,
      author       = {Frielinghaus, Henrich and Jaksch, Sebastian and Holderer,
                      Olaf and Gvaramia, Manuchar and Ohl, Michael and
                      Monkenbusch, Michael},
      title        = {{V}iscoelastic membrane modes adjacent to a hard wall},
      school       = {McMaster University},
      reportid     = {FZJ-2018-04079},
      year         = {2018},
      abstract     = {SoyPC membrane stack modes adjacent to a hard hydrophilic
                      wall were observed to be of viscoelastic character on
                      nanosecond time scales [1]. This is astonishing because
                      nearly all soft matter systems display over-damped behavior
                      on nanosecond time scales, because the molecular friction is
                      rather strong. This has direct impact on energy dissipation
                      along the membrane, because shock energies could be
                      distributed over larger areas as classically into the volume
                      in the normal direction. Membrane stacks in mammalian joints
                      could benefit from that effect.We started to observe soyPC
                      membrane stacks in terms of structure using grazing
                      incidence small angle neutron scattering. These systems we
                      doped with ibuprofen [2] molecules to observe the
                      malfunction of the membrane. Ibuprofen is known to cause
                      stomach bleeding upon extensive use.The pure membranes in
                      water were studied using grazing incidence neutron spin echo
                      spectroscopy. One drawback of this method is the weak
                      scattering intensity resulting from small scattering volumes
                      next to the solid-liquid interface and from the small
                      apertures that are needed to define the incident angle well.
                      A neutron resonator [3] was developed to enhance the
                      impinging wave-field dramatically such that neutron
                      spectroscopy at interfaces becomes feasible.References[1] S.
                      Jaksch, O. Holderer, M. Gvaramia, M. Ohl, M. Monkenbusch, H.
                      Frielinghaus, Sci. Reports 7, 4417 (2017)[2] S. Jaksch, F.
                      Lipfert, A. Koutsioubas, S. Mattauch, O. Holderer, O.
                      Ivanova, H. Frielinghaus, S. Hertrich, S.F. Fischer, B.
                      Nickel, Phys. Rev. E 91, 022716 (2015)[3] H. Frielinghaus,
                      M. Gvaramia, G. Mangiapia, S. Jaksch, M. Ganeva, A.
                      Koutsioubas, S. Mattauch, M. Ohl, M. Monkenbusch, O.
                      Holderer, Nucl. Instr. Meth. Phys. Res. A 871, 72-76 (2017)},
      month         = {Jul},
      date          = {2018-07-02},
      organization  = {International Workshop on Status and
                       Perspectives in Research on Membrane
                       Structure and Interaction, Hamilton
                       (Canada), 2 Jul 2018 - 4 Jul 2018},
      subtyp        = {Other},
      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          = {6215 - Soft Matter, Health and Life Sciences (POF3-621) /
                      6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
                      Neutron Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-6215 / G:(DE-HGF)POF3-6G15 /
                      G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)KWS1-20140101 / EXP:(DE-MLZ)MARIA-20140101 /
                      EXP:(DE-MLZ)J-NSE-20140101 / EXP:(DE-Juel1)SNS-NSE-20150203},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/849991},
}