% 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: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}, }