A simpler expression for Henry%26apos;s function describing the electrophoretic mobility of spherical colloids

作者：Swan James W^*; Furst Eric M

来源：Journal of Colloid and Interface Science, 2012, 388: 92-94.

DOI：10.1016/j.jcis.2012.08.026

• Electrophoresis
• Colloidal hydrodynamics

An approximate expression for Henry%26apos;s function, describing the electrophoretic mobility of a spherical colloidal particle in the limit of low surface potentials, is developed through a physical analogy to a colloidal particle with a linearly slipping surface (i.e. satisfies the Navier slip condition). The resulting expression reproduces Henry%26apos;s function with a relative error of no more than 0.1%. This approach is generalized for the electrophoretic mobility of a particle regardless of surface potential though necessary data for rigorous testing is lacking.

• 出版日期2012-12-15