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@ARTICLE{Meier:843822,
author = {Meier, G. and Gapinski, J. and Ratajcczyk, M. and Lettinga,
M. P. and Hirtz, Kurt and Banachowicz, E. and Patkowski, A.},
title = {{N}ano-viscosity of supercooled liquid measured by
fluorescence correlation spectroscopy: pressure and
temperature dependence and the density scaling},
journal = {The journal of chemical physics},
volume = {148},
issn = {0021-9606},
address = {Melville, NY},
publisher = {American Institute of Physics},
reportid = {FZJ-2018-01361},
pages = {094201},
year = {2018},
abstract = {The Stokes-Einstein relation allows us to calculate
apparent viscosity experienced by tracers in complex media
on the basis of measured self-diffusion coefficients. Such
defined nano-viscosity values can be obtained through single
particle techniques, like fluorescence correlation
spectroscopy (FCS) and particle tracking (PT). In order to
perform such measurements, as functions of pressure and
temperature, a new sample cell was designed and is described
in this work. We show that this cell in combination with a
long working distance objective of the confocal microscope
can be used for successful FCS, PT, and confocal imaging
experiments in broad pressure (0.1-100 MPa) and temperature
ranges. The temperature and pressure dependent
nano-viscosity of a van der Waals liquid obtained from the
translational diffusion coefficient measured in this cell by
means of FCS obeys the same scaling as the rotational
relaxation and macro-viscosity of the system.},
cin = {ICS-3},
ddc = {540},
cid = {I:(DE-Juel1)ICS-3-20110106},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551)},
pid = {G:(DE-HGF)POF3-551},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000427030500017},
doi = {10.1063/1.5011196},
url = {https://juser.fz-juelich.de/record/843822},
}