Abstract
Electrophoresis is a process by which a charged colloid is propelled in a polar media under the action of an externally imposed electric field. This has been recognized as a useful tool to characterize macromolecules such as DNA, microorganisms, biocolloids or synthetic nanoparticles. Electrophoresis is also found to be an efficient method in separating, sorting and purification process. The microfluidic technology to address problems in biology, medical technology, such as controlled drug delivery and disease diagnostic are based on the electrophoresis phenomena. Thus, a correct relation between the electrostatic parameters and the electrophoretic velocity constitutes an important research topic. In this chapter, we have elaborated some of the existing simplified models for electrophoretic velocity. The shortcomings of these linear models or models based on weak-field consideration are illustrated in this chapter. An account of improved theory on electrophoresis is provided. The electrophoresis of a hydrophobic colloid is also addressed in the present chapter.
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Gopmandal, P.P., Maurya, S.K., Bhattacharyya, S. (2020). An Overview on Analytic Expressions for Electrophoretic Velocity of Rigid Colloids. In: Bhattacharyya, S., Kumar, J., Ghoshal, K. (eds) Mathematical Modeling and Computational Tools. ICACM 2018. Springer Proceedings in Mathematics & Statistics, vol 320. Springer, Singapore. https://doi.org/10.1007/978-981-15-3615-1_1
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