Table 1. Efficiency of gene electrotransfer in terms of % transfected cells (%TR) for CHO cells in a suspension in the exponential growth phase vs. cells in the plato phase for the HV (4 × 200 μs, E_HV = 1.4 kV/cm, 1 Hz) and HV+LV (HV 4 × 200 μs, E_HV = 1.4 kV/cm, LV 1 × 100 ms, E_LV = 0.0375 kV/cm) pulsing protocols. The results are presented as mean ± standard error of at least three independent experiments, c_DNA = 40 μg/μl.

%TR PHASE OF CULTURE	HV	HV+LV	LV
exponential	55.7 ± 11.6	52.2 ± 10.2	0.3 ± 0.1
plato	15.5 ± 1.1	17.3 ± 1.4	0.1 ± 0.0