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所属单位：机电学院

发表刊物：CHINESE JOURNAL OF ANALYTICAL CHEMISTRY

关键字：Dielectrophoresis Cell motion Multi-electrode Composite electric field Optimal electrode combination Microfluidic chip

摘要：The motion characteristics of different cells in the multi-electrode array microchip were studied under the dielectrophoretic force , and the two cells with the same external morphology but different internal histone protein were separated. The multi-electrode array microfluidic chip was embedded in the 5 square cross section of the channel , and 8 electrodes were embedded on each side of the cross section. The structure enlarged the size of the microfluidic channel , which was beneficial for the high flow separation of the cells under the action of the dielectrophoretic force. To study the characteristics of cell motion in the microfluidic device , the electric field distribution in a cross-section was calculated , and the optimal electrode combination pattern was obtained , which generated a uniform electric field distribution and a greatest the dielectrophoretic force. After that, the motion characteristics of MRC-5 in human lung fibroblasts in different frequencies and complex electric fields at different frequencies and complex electric fields were analyzed. By analyzing the spectrum of the dielectrophoretic force , the separation frequency of the two kinds of cells of wild type (WT) and histone-GFP type was f = 30 kHz, and the separation rate of cell was calculated by adding different proportions of sucrose solution and two cell mixture at two inlets. That was, when the flow-rate ratio of the 2 inlets was 12:1 , the separation rate of the two types of cells was 93. 5% . The method for cell separation using microfluidic chips provided a basis for the rapid separation of cells in the future.

ISSN号：0253-3820

是否译文：否

发表时间：2019-02-01

合写作者：Jiang Zhu-Peng,Zhao Tong,Wang Hao,Chen Bai,吴洪涛

通讯作者：姚佳烽