title: Near-wall electrophoretic motion of spherical particles in cylindrical capillaries.
abstract: In this paper, near-wall electrophoretic motion of spherical particles in cylindrical capillaries was experimentally investigated. It is demonstrated that same-sized particles move faster in smaller capillaries. This observation verifies the theoretical prediction of the wall enhancing effect in our recent paper (C. Ye, X. Xuan, D. Li, Microfluid. Nanofluid. 1 (2005)). Our experiments show that this wall enhancing effect becomes more significant when the size difference between particle and capillary becomes smaller and when a dilute electrolyte solution (i.e., thicker electric double layer) is used.
authors: Department of Mechanical and Industrial Engineering, University of Toronto, ON, Canada.
authors: Xiangchun
authors: X
authors: Xuan
authors: Chunzhen
authors: C
authors: Ye
authors: Dongqing
authors: D
authors: Li