% 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{Wang:154518,
author = {Wang, Zilin and Dhont, Jan K.G. and Buitenhuis, Johan and
Wiegand, Simone},
title = {{T}hermophoresis of a colloidal rod: {S}teric and
electrostatic contributions},
school = {University of Cologne},
reportid = {FZJ-2014-03832},
year = {2014},
abstract = {We studied the thermal diffusion behavior of dilute
solutions of rod-like, charged colloids (fd-virusparticles)
and fd-virus grafted by PEO (polyethylene oxide, Mw = 5000
g/mol) usinga holographic grating technique Thermal
Diffusion Forced Rayleigh Scattering (TDFRS). Thesteric and
electrostatic contributions have been investigated as a
function of the ionic strength,which corresponds to
different Debye length. In the short Debye length regime we
found aclear contribution from the polymer chain, which
fades out in the longer Debye length regime,where the
polymer chains fit into the electric double layer.
Furthermore for the non-grafted fd-viruseswe found their
Soret coefficient increases monotonically with increasing
Debye length,while there is a relatively weak dependence on
the rod-concentration when the ionic strengthis kept
constant. An existing theory for thermal diffusion of
charged spheres is extended todescribe the thermal diffusion
of long and thin charged rods, leading to an expression for
theSoret coefficient in terms of the Debye length, the
rod-core dimensions, and the surface chargedensity. The
thermal diffusion coefficient of a charged colloidal rod is
shown to be accuratelyrepresented, for arbitrary Debye
lengths, by a superposition of spherical beads with the
samediameter of the rod and the same surface charge.},
month = {Jun},
date = {2014-06-02},
organization = {11th International Meeting on
Thermodiffusion, Bayonne (France), 2
Jun 2014 - 6 Jun 2014},
subtyp = {After Call},
cin = {ICS-3},
cid = {I:(DE-Juel1)ICS-3-20110106},
pnm = {451 - Soft Matter Composites (POF2-451)},
pid = {G:(DE-HGF)POF2-451},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/154518},
}