Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10377490 | Journal of Colloid and Interface Science | 2005 | 13 Pages |
Abstract
Applications of microelectromechanical systems in the biotechnological arena (bioMEMS) are a subject of great current interest. Accurate calculation of electric field distribution in these devices is essential to the understanding and design of processes such as dielectrophoresis and AC electroosmosis that drive MEMS-based devices. In this paper, we present the calculation of the electrical double-layer impedance (Zel) of an ideally polarizable plane electrode using the standard model of colloidal electrokinetics. The frequency variation of the electrical potential drop across the double layer above a planar electrode in a general electrolyte solution is discussed as a function of the electrode zeta potential ζ, the Debye length κâ1, the electrolyte composition and the bulk region thickness L.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Hao Zhou, Matthew A. Preston, Robert D. Tilton, Lee R. White,