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@ARTICLE{Heinen:16797,
      author       = {Heinen, M. and Banchio, A.J. and Nägele, G.},
      title        = {{S}hort-time rheology and diffusion in suspensions of
                      {Y}ukawa-type colloidal particles},
      journal      = {The journal of chemical physics},
      volume       = {135},
      issn         = {0021-9606},
      address      = {Melville, NY},
      publisher    = {American Institute of Physics},
      reportid     = {PreJuSER-16797},
      pages        = {154504},
      year         = {2011},
      note         = {M.H. acknowledges support by the International Helmholtz
                      Research School of Biophysics and Soft Matter (IHRS
                      BioSoft). A.J.B. acknowledges financial support from
                      SeCyT-UNC and CONICET. This work was under appropriation of
                      funds from the Deutsche Forschungsgemeinschaft (DFG)
                      (SFB-TR6, project B2).},
      abstract     = {A comprehensive study is presented on the short-time
                      dynamics in suspensions of charged colloidal spheres. The
                      explored parameter space covers the major part of the
                      fluid-state regime, with colloid concentrations extending up
                      to the freezing transition. The particles are assumed to
                      interact directly by a hard-core plus screened Coulomb
                      potential, and indirectly by solvent-mediated hydrodynamic
                      interactions. By comparison with accurate accelerated
                      Stokesian Dynamics (ASD) simulations of the hydrodynamic
                      function H(q), and the high-frequency viscosity η(∞), we
                      investigate the accuracy of two fast and easy-to-implement
                      analytical schemes. The first scheme, referred to as the
                      pairwise additive (PA) scheme, uses exact two-body
                      hydrodynamic mobility tensors. It is in good agreement with
                      the ASD simulations of H(q) and η(∞), for smaller volume
                      fractions up to about $10\%$ and $20\%,$ respectively. The
                      second scheme is a hybrid method combining the virtues of
                      the δγ scheme by Beenakker and Mazur with those of the PA
                      scheme. It leads to predictions in good agreement with the
                      simulation data, for all considered concentrations,
                      combining thus precision with computational efficiency. The
                      hybrid method is used to test the accuracy of a generalized
                      Stokes-Einstein (GSE) relation proposed by Kholodenko and
                      Douglas, showing its severe violation in low salinity
                      systems. For hard spheres, however, this GSE relation
                      applies decently well.},
      keywords     = {Colloids: chemistry / Computer Simulation / Diffusion /
                      Models, Chemical / Particle Size / Rheology / Suspensions /
                      Time Factors / Viscosity / Colloids (NLM Chemicals) /
                      Suspensions (NLM Chemicals) / J (WoSType)},
      cin          = {ICS-3},
      ddc          = {540},
      cid          = {I:(DE-Juel1)ICS-3-20110106},
      pnm          = {BioSoft: Makromolekulare Systeme und biologische
                      Informationsverarbeitung},
      pid          = {G:(DE-Juel1)FUEK505},
      shelfmark    = {Physics, Atomic, Molecular $\&$ Chemical},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:22029321},
      UT           = {WOS:000296516800034},
      doi          = {10.1063/1.3646962},
      url          = {https://juser.fz-juelich.de/record/16797},
}