Fig. 4
From: Advancing cancer therapy with custom-built alternating electric field devices
Changes to metabolic activity of GIN31 cells (A) and GCE31 cells (B) without electrical stimulation (NS) or following 48 h exposure to AC electric fields (+ Field) or current (+ Curr), in the presence or absence of ZnO. Cells were treated with ZnO NP for 4 h before electrical stimulation; the NP were then removed and replaced with fresh cell culture medium. N = 3/ 4, n = 2/ 4. Results show mean ± SEM