Figure 6. Viability of the U87 glioma cells. a) Viability difference of U87 glioma cells in regular growth medium (DMEM) and in DEP buffer for 30 min. It was not significantly different according to Student’s t-test (p=0.99). b) Percentages of the dead cells (PI positive) in the population of glioma cells (DAPI) before and after the DEP experiment.