Abstract
General expressions of the electrophoretic mobility-zeta potential relationship for a cylindrical colloidal particle with a hydrodynamically slipping surface in an aqueous electrolyte solution under a transverse or tangential electric field are obtained on the basis of the Navier boundary condition. Approximate expressions for the electrophoretic mobility of cylindrical particles carrying a low zeta potential are derived. As in the case of a sphere, the electrophoretic mobility of a cylinder increases with increasing slip length, which characterizes the hydrophobicity of the particle surface.
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Acknowledgments
I thank Dr. Partha P. Gopmandal of National Institute of Technology Durgapru and Prof. Somnath Bhattacharyya of Indian Institute of Technology Kharagpur for introducing me in the field of electrokinetics of a colloidal particle with a slip surface.
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Ohshima, H. Electrophoretic mobility of a cylindrical colloidal particle with a slip surface. Colloid Polym Sci 298, 151–156 (2020). https://doi.org/10.1007/s00396-019-04586-3
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DOI: https://doi.org/10.1007/s00396-019-04586-3