Title :
Frequency characteristics of dielectrophoresis in cell suspension solution
Author :
Chuanxiang, Xu ; Lisheng, Zhong ; Hong, Mao
Author_Institution :
Dept. of Electr. Eng., Xi´´an Jiaotong Univ., China
Abstract :
The frequency characteristic of the pearl chains formed by dielectrophoresis under a nonuniform alternating electric field, which was produced with a probe-probe electrode system, was studied for cellular electrofusion. In the frequency range of 100 kHz to 30 MHz, a relationship between the pearl-chain formation and the electric field frequency was observed. It is shown that there is a center frequency at which cells turn to the field direction fast and the pearl chains are rapidly formed. A preliminary exploration of the mechanism has been made by establishing a new polarized model. The center frequency can be represented with a series RC equivalent circuit
Keywords :
electrophoresis; equivalent circuits; 0.1 to 30 MHz; RC equivalent circuit; cell suspension solution; cellular electrofusion; dielectrophoresis; electric field frequency; frequency characteristic; frequency range; model; nonuniform alternating electric field; pearl chains; pearl-chain formation; probe-probe electrode system; Dielectrophoresis; Electric fields; Electrodes; Frequency; Fungi; Microscopy; Nonuniform electric fields; Polarization; System testing; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1991., Proceedings of the 3rd International Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-87942-568-7
DOI :
10.1109/ICPADM.1991.172271
