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@ARTICLE{Lanotte:824053,
author = {Lanotte, Luca and Mauer, Johannes and Mendez, Simon and
Fedosov, Dmitry A. and Fromental, Jean-Marc and Claveria,
Viviana and Nicoud, Franck and Gompper, Gerhard and
Abkarian, Manouk},
title = {{R}ed cells' dynamic morphologies govern blood shear
thinning under microcirculatory flow conditions},
journal = {Proceedings of the National Academy of Sciences of the
United States of America},
volume = {113},
number = {47},
issn = {1091-6490},
address = {Washington, DC},
publisher = {National Acad. of Sciences},
reportid = {FZJ-2016-06677},
pages = {13289 - 13294},
year = {2016},
abstract = {Blood viscosity decreases with shear stress, a property
essential for an efficient perfusion of the vascular tree.
Shear thinning is intimately related to the dynamics and
mutual interactions of RBCs, the major component of blood.
Because of the lack of knowledge about the behavior of RBCs
under physiological conditions, the link between RBC
dynamics and blood rheology remains unsettled. We performed
experiments and simulations in microcirculatory flow
conditions of viscosity, shear rates, and volume fractions,
and our study reveals rich RBC dynamics that govern shear
thinning. In contrast to the current paradigm, which assumes
that RBCs align steadily around the flow direction while
their membranes and cytoplasm circulate, we show that RBCs
successively tumble, roll, deform into rolling stomatocytes,
and, finally, adopt highly deformed polylobed shapes for
increasing shear stresses, even for semidilute volume
fractions of the microcirculation. Our results suggest that
any pathological change in plasma composition, RBC cytosol
viscosity, or membrane mechanical properties will affect the
onset of these morphological transitions and should play a
central role in pathological blood rheology and flow
behavior.},
cin = {ICS-2},
ddc = {000},
cid = {I:(DE-Juel1)ICS-2-20110106},
pnm = {553 - Physical Basis of Diseases (POF3-553)},
pid = {G:(DE-HGF)POF3-553},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000388830700047},
pubmed = {pmid:27834220},
doi = {10.1073/pnas.1608074113},
url = {https://juser.fz-juelich.de/record/824053},
}