Figure 4. Dielectrophoretic response of U87 glioma cells. a)Schematic for the distribution of glioma cells in the microchannel
according to applied DEP forces, 3: strong pDEP, 2: pDEP, 1: weak pDEP,
0: no DEP forces. b) Distribution of the U87 glioma cells in
the electrode array and the number glioma cells experienced
FDEP. c) The number of cells with pDEP behavior
when 3 Vpp, and 0 – 10 MHz frequencies were applied.d) Zoomed frequencies: 0, 100 kHz, 200 kHz, 400 kHz, and 500
kHz. The mean values with the standard deviations represent 500 cells.