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@ARTICLE{Dasanna:892734,
      author       = {Dasanna, Anil K. and Mauer, Johannes and Gompper, Gerhard
                      and Fedosov, Dmitry A.},
      title        = {{I}mportance of {V}iscosity {C}ontrast for the {M}otion of
                      {E}rythrocytes in {M}icrocapillaries},
      journal      = {Frontiers in physics},
      volume       = {9},
      issn         = {2296-424X},
      address      = {Lausanne},
      publisher    = {Frontiers Media},
      reportid     = {FZJ-2021-02295},
      pages        = {666913},
      year         = {2021},
      abstract     = {The dynamics and deformation of red blood cells (RBCs) in
                      microcirculation affect the flow resistance and transport
                      properties of whole blood. One of the key properties that
                      can alter RBC dynamics in flow is the contrast λ (or ratio)
                      of viscosities between RBC cytosol and blood plasma. Here,
                      we study the dependence of RBC shape and dynamics on the
                      viscosity contrast in tube flow, using mesoscopic
                      hydrodynamics simulations. State diagrams of different RBC
                      dynamical states, including tumbling cells, parachutes, and
                      tank-treading slippers, are constructed for various
                      viscosity contrasts and wide ranges of flow rates and tube
                      diameters (or RBC confinements). Despite similarities in the
                      classification of RBC behavior for different viscosity
                      contrasts, there are notable differences in the
                      corresponding state diagrams. In particular, the region of
                      parachutes is significantly larger for λ = 1 in comparison
                      to λ = 5. Furthermore, the viscosity contrast strongly
                      affects the tumbling-to-slipper transition, thus modifying
                      the regions of occurrence of these states as a function of
                      flow rate and RBC confinement. Also, an increase in cytosol
                      viscosity leads to a reduction in membrane tension induced
                      by flow stresses. Physical mechanisms that determine these
                      differences in RBC dynamical states as a function of λ are
                      discussed.},
      cin          = {IBI-5},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IBI-5-20200312},
      pnm          = {524 - Molecular and Cellular Information Processing
                      (POF4-524)},
      pid          = {G:(DE-HGF)POF4-524},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000653645500001},
      doi          = {10.3389/fphy.2021.666913},
      url          = {https://juser.fz-juelich.de/record/892734},
}