Journal of EEIS
Current Result Document :
| 한글제목(Korean Title) |
Determination of the Dielectrophoretic Force on a Cell in a Micro Planar Electrode Structure |
| 영문제목(English Title) |
Determination of the Dielectrophoretic Force on a Cell in a Micro Planar Electrode Structure |
| 저자(Author) |
Jung-Hoon Choi
Sang-Wook Lee
Yong-Kweon Kim
|
| 원문수록처(Citation) |
VOL 02 NO. 04 PP. 0066 ~ 0071 (1997. 08) |
한글내용
(Korean Abstract) |
|
영문내용
(English Abstract) |
The dielectrophoretic(DEP)force acting on a cell in an electric field is experimentally determined. A cell is accelerated by the DEP force in an electric field generated between micro planar electrodes. The position of the cell is measured and the velocity and acceleration of the cell are calculated based on the measured position data. The DEP force is determined from the motion equation of a moving cell in suspension. The electrode stucture is fabricated by micromachining technology and the height of electrodes is 1%u339B. Radish cell and yeast are used in the experiments. In the case of radish cell, the DEP force inceases as voltage or frequency(1%u3392~3%u3392)increases. The voltage dependence can be explained that the DEP force increases when %u2207%u2502E%u2502쾖ncreases. The frequency dependence means that Re[xeff]of radish cell is maximized in a ertain frequency. In the case of yeast, the DEP force increases only as voltage increases. The reason for the voltage dependence is the same with the case of radish. The DEP force on a yeast does not vary when the frequency varies from 1%u3392 to 3%u3392. This result coincides with the fact that the value of calculated Re[%u03C7eff(%uCCA8%uC790)]is constant in the test frequency range. |
| 키워드(Keyword) |
MEMS
Dielectrophoretic Force
Micro Planar Electrode Structure
|
| 파일첨부 |
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