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@ARTICLE{DaVela:828004,
author = {Da Vela, Stefano and Braun, Michal K. and Dörr, Andreas
and Greco, Alessandro and Möller, Johannes and Fu, Zhendong
and Zhang, Fajun and Schreiber, Frank},
title = {{K}inetics of liquid–liquid phase separation in protein
solutions exhibiting {LCST} phase behavior studied by
time-resolved {USAXS} and {VSANS}},
journal = {Soft matter},
volume = {12},
number = {46},
issn = {1744-6848},
address = {London},
publisher = {Royal Soc. of Chemistry},
reportid = {FZJ-2017-02026},
pages = {9334 - 9341},
year = {2016},
abstract = {We study the kinetics of the liquid–liquid phase
separation (LLPS) and its arrest in protein solutions
exhibiting a lower critical solution temperature (LCST)
phase behavior using the combination of ultra-small angle
X-ray scattering (USAXS) and very-small angle neutron
scattering (VSANS). We employ a previously established model
system consisting of bovine serum albumin (BSA) solutions
with YCl3. We follow the phase transition from sub-second to
104 s upon an off-critical temperature jump. After a
temperature jump, the USAXS profiles exhibit a peak that
grows in intensity and shifts to lower q values with time.
Below 45 °C, the characteristic length scale (ξ) obtained
from this scattering peak increases with time with a power
of about 1/3 for different sample compositions. This is in
good agreement with the theoretical prediction for the
intermediate stage of spinodal decomposition where the
growth is driven by interface tension. Above 45 °C, ξ
follows initially the 1/3 power law growth, then undergoes a
significant slowdown, and an arrested state is reached below
the denaturation temperature of the protein. This growth
kinetics may indicate that the final composition of the
protein-rich phase is located close to the high density
branch of the LLPS binodal when a kinetically arrested state
is reached.},
cin = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
(München) ; JCNS-FRM-II / JCNS-2},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-2-20110106},
pnm = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
Neutron Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)KWS3-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000389322800009},
doi = {10.1039/C6SM01837H},
url = {https://juser.fz-juelich.de/record/828004},
}