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APS » Journals » Phys. Rev. E » Volume 60 » Issue 1
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Phys. Rev. E 60, R17–R20 (1999)

Nonlinear effects in the electrophoresis of a spherical colloidal particle

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Marcelo Lozada-Cassou1,2,3, Enrique González-Tovar2, and Wilmer Olivares2
1Simulación Molecular, Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas, 152, 07730 México, Distrito Federal, México
2Departamento de Física, Universidad Autónoma Metropolitana, Mexico City, 09340 México, Distrito Federal, México
3Institute for Theoretical Physics, University of California at Santa Barbara, Santa Barbara, California 93106

Received 9 February 1998; published in the issue dated July 1999

The reduced electrophoretic mobility-reduced zeta potential relationship for a charged macroparticle is shown to be nonuniversal and to be highly nonlinear. In agreement with experimental results, a mobility reversal due to the macroion’s charge inversion and a nonlinear dependence of the mobility on salt concentration is obtained.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.60.R17
DOI:
10.1103/PhysRevE.60.R17
PACS:
82.70.Dd, 61.20.Qg, 82.45.+z
 
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