Fig. 6. Cell viabilities of TP, blank NGs and TP-loaded NGs against HepG₂ cells. HepG₂ cells (1 × 10⁵ cells per mL) were incubated with different concentrations of TP and TP-loaded NGs for 12, 24 and 48 h. All data were processed from three independent experiments (p < 0.05).