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Manipulation of bioparticles using traveling wave dielectrophoresis: numerical approach |
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| Authors: | H?Du |
| Affiliation: | (1) Centre for Mechanics of Micro-Systems, School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798;(2) School of Mechanical, Materials and Mechatronic Engineering, Faculty of Engineering, University of Wollongong, NSW, Australia, 2522;(3) Department of Mechanical Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260 |
| Abstract: | A typical microelectrode structure, interdigitated bar electrodes, has been developed for the selective manipulation and separation of bioparticles using traveling field dielectrophoresis effects under AC electrokinetics. This paper presents meshless numerical solutions of traveling wave dielectrophoresis for such interdigitated electrode array energized with 4-phase signal. This meshless method is based on a truncated 2D Taylor series expansion with the first three orders together with a weighted least-square approximation procedure. Dielectrophoretic forces and traveling wave forces are calculated and their applications for bioparticle manipulation and separation are discussed. |
| Keywords: | finite difference scheme interdigitated electrode arrays meshless Taylor series traveling wave dielectrophoresis |
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