Separation characteristics of animal cells using a dielectrophoretic filter.

The separation characteristics of a wire-wire type dielectrophoretic (DEP) filter were evaluated using animal cells. The separation of cells with different activities was examined using a DEP filter. The specific growth rate of the cells in retention liquid was larger than that in permeation liquid. From the culture results of the separated cells, it becomes clear that the specific growth rate of the cells of the retention liquid was higher than that of the cells of the permeation liquid. Furthermore, as a result of separating cells two kinds of cell suspensions using the DEP filter, the difference between the retention ratios of the two groups of obtained cells was about 20% at maximum.