2006/01/31 by Vladimir Lobaskin, Burkhard Duenweg, Burkhard Dünweg +3 · 7 citations
Chemistry · Earth and Planetary Sciences · Engineering · Physics and Astronomy · #Electrostatics and Colloid Interactions #Geophysical and Geoelectrical Methods #Microfluidic and Bio-sensing Technologies #cond-mat.soft
paper · pdf · doi:10.1103/physrevlett.98.176105
published as Phys. Rev. Lett. 98, 176105 (2007) · Substantially revised version
arxiv created 2006/12/15 · openalex publication_date 2007/04/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the electrophoretic mobility of spherical charged colloids in a low-salt suspension as a function of the colloidal concentration. Using an effective particle charge and a reduced screening parameter, we map the data for systems with different particle charges and sizes, including numerical simulation data with full electrostatics and hydrodynamics and experimental data for latex dispersions, on a single master curve. We observe two different volume fraction-dependent regimes for the electrophoretic mobility that can be explained in terms of the static properties of the ionic double layer.