Figure 8.

Cell viability of (a) MDA-MB-231 and (b) MCF-7 cells when incubated with β-Sit-PLGA nanoparticles. Cells were seeded at a density of 1 × 10⁴ cells per well and treated with varying concentrations of nanoparticle suspension and appropriate controls. Cell viability is expressed as a percentage of the control (untreated cells). Cell viability for blank PLGA treatments represents an average of all treatments at 6.64–53.08 μg/mL of PLGA. Results represent mean ± SD (n = 3) (*** P < 0.001, ** P < 0.01, * P < 0.05, ns, no statistical difference).