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@ARTICLE{Jaksch:837317,
author = {Jaksch, Sebastian and Holderer, Olaf and Gvaramia, Manuchar
and Ohl, Michael and Monkenbusch, Michael and Frielinghaus,
Henrich},
title = {{N}anoscale rheology at solid-complex fluid interfaces},
journal = {Scientific reports},
volume = {7},
number = {1},
issn = {2045-2322},
address = {London},
publisher = {Nature Publishing Group},
reportid = {FZJ-2017-06282},
pages = {4417},
year = {2017},
abstract = {Here we present an approach to measure dynamic membrane
properties of phospholipid membranes close to an interface.
As an example we show results of the membrane dynamics of a
phospholipid membrane multilayer-stack on a solid substrate
(silicon). On this sample we were able to measure local
interaction and friction parameters using Grazing Incidence
Neutron Spin Echo Spectroscopy (GINSES), where an evanescent
neutron wave probes the fluctuations close to a rigid
interface. With this method it is possible to access length
scales in the nano to micrometer region as well as energies
in the μeV range. Using a new neutron resonator structure
we achieved the required intensity gain for this experiment.
During our investigations we found an excitation mode of the
phospholipid membrane that has not been reported previously
and only became visible using the new methodology. We
speculate that the energy transported by that undulation can
also serve to distribute energy over a larger area of the
membrane, stabilizing it. This new methodology has the
capability to probe the viscoelastic effects of biological
membranes, becoming a new tool for tribology on the
nanoscale and has allowed the observation of the hitherto
invisible property of phospholipid membranes using
neutrons.},
cin = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
(München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1 /
JCNS-ESS / JCNS-SNS},
ddc = {000},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)JCNS-ESS-20170404
/ I:(DE-Juel1)JCNS-SNS-20110128},
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-Juel1)SNS-NSE-20150203},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000404451300023},
doi = {10.1038/s41598-017-04294-4},
url = {https://juser.fz-juelich.de/record/837317},
}