Fig. 5

Cell viability after 700 MHz RF-EMF exposure. Cell viability, defined as the proportion of Annexin V−/Sytox− cells, was quantified in primary rat cortical astrocytes (left) and SH-SY5Y neuroblastoma cells (right) after exposure to 700 MHz RF-EMF at 0, 0.08, or 4 W/kg. Cells were exposed for 1 h or 24 h and analyzed at the immediate readout (A, C) or at the 24 h post-exposure readout (B, D). Viability remained uniformly high across all exposure conditions in both models. Data shown as boxplots; n = 5 (astrocytes) and n = 6 (SH-SY5Y). Kruskal–Wallis test.