Fig. 5. (a) Parallel lactate detection in HepG2 cells in untreated medium compared to cells exposed to 100 μM 5-FU, 150 μM 5-FU, 10 μg mL⁻¹ VCS and 15 μg mL⁻¹ VCS after cultivation for 48 h. (b) Morphology of HepG2 cells untreated medium compared to cells in media treated with 100 μM 5-FU, 150 μM 5-FU, 10 μg mL⁻¹ VCS and 15 μg mL⁻¹ VCS.