介电泳分离方法的研究在微电子机械系统及生物领域具有广泛的应用前景。本文对介电泳作用下细胞颗粒在微通道电解溶液内流动进行了理论分析,对作用在分离流动方向细胞颗粒上的介电泳力和粘性力进行了分析。模拟了交流电场在频率1000kHz微通道内三维电势分布和不同时间的介电泳力分布变化。
Study of dielectrophoretic (DEP) separation method has extensive applications in MEMS and biology area. A theoretical analysis of micro flow of cell particle in an aqueous electrolyte solution was presented in this paper. The DEP force and viscous force on the cell particle in the separation flow direction was analyzed. For a given AC field frequency of 1000 kHz, three dimensional electric field and DEP force vs. time in micro channel were simulated.