Zobrazeno 1 - 10
of 219
pro vyhledávání: '"Nägele, Gerhard"'
Publikováno v:
J. Chem. Phys. 159, 204904 (2023)
Charge-stabilized colloidal suspensions display a rich variety of microstructural and thermodynamic properties, which are determined by electro-steric interactions between all ionic species. The large size asymmetry between molecular-scale microions
Externí odkaz:
http://arxiv.org/abs/2312.09543
Competing short-range attractive (SA) and long range repulsive (LR) interactions have been invoked to describe colloid or protein solutions, as well as membrane proteins interactions mediated by lipid molecules. Using Langevin dynamics simulations, w
Externí odkaz:
http://arxiv.org/abs/2310.05197
Publikováno v:
Soft Matter 17, 7978 (2021)
We present a multiparticle collision dynamics (MPC) implementation of layered immiscible fluids $A$ and $B$ of different shear viscosities separated by planar interfaces. The simulated flow profile for imposed steady shear motion and the time-depende
Externí odkaz:
http://arxiv.org/abs/2105.01492
Ionic microgel particles in a good solvent swell to an equilibrium size determined by a balance of electrostatic and elastic forces. When crowded, ionic microgels deswell owing to a redistribution of microions inside and outside the particles. The co
Externí odkaz:
http://arxiv.org/abs/1910.00833
Publikováno v:
The Journal of Chemical Physics 148, 134902 (2018)
We report on a comprehensive theory-simulation-experimental study of collective and self-diffusion in suspensions of charge-stabilized colloidal spheres. In simulation and theory, the spheres interact by a hard-core plus screened Coulomb pair potenti
Externí odkaz:
http://arxiv.org/abs/1711.09988
Autor:
Roa, Rafael, Menne, Daniel, Riest, Jonas, Buzatu, Pompilia, Zholkovskiy, Emiliy K., Dhont, Jan K. G., Wessling, Matthias, Nägele, Gerhard
Publikováno v:
Soft Matter, 2016, 12, 4638-4653
We present a comprehensive study of cross-flow ultrafiltration (UF) of charge-stabilized suspensions, under low-salinity conditions of electrostatically strongly repelling colloidal particles. The axially varying permeate flux, near-membrane concentr
Externí odkaz:
http://arxiv.org/abs/1603.05896
Publikováno v:
Soft Matter, 2015, 11, 4106-4122
Membrane ultrafiltration (UF) is a pressure driven process allowing for the separation and enrichment of protein solutions and dispersions of nanosized microgel particles. The permeate flux and the near-membrane concentration-polarization (CP) layer
Externí odkaz:
http://arxiv.org/abs/1503.06721
We present an easy-to-use analytic toolbox for the calculation of short-time transport properties of concentrated suspensions of spherical colloidal particles with internal hydrodynamic structure, and direct interactions described by a hard-core or s
Externí odkaz:
http://arxiv.org/abs/1501.02696
Publikováno v:
Soft Matter, 2015, 11, 5313-5326
To the present day, the Beenakker-Mazur (BM) method is the most comprehensive statistical physics approach to the calculation of short-time transport properties of colloidal suspensions. A revised version of the BM method with an improved treatment o
Externí odkaz:
http://arxiv.org/abs/1501.01601
Publikováno v:
The Journal of Chemical Physics 136: 015102, 2012
Salt, glycerol and dimethyl sulfoxide (DMSO) are used to modify the properties of protein solutions. We experimentally determined the effect of these additives on the phase behavior of lysozyme solutions. Upon the addition of glycerol and DMSO, the f
Externí odkaz:
http://arxiv.org/abs/1112.2510