Figure 3: Additional effect of drug delivery and one photon PDT on retinoblastoma cells. Y-79 cells were incubated or not (control) with 20 μg.mL-1 for 24 h with MSN-(CPT)-Gal or -Man and MSN-(CPT+1ɤPS)-Gal or -Man and then submitted to laser irradiation (650 nm, 90 J.cm-2). Cells were allowed to grow for 2 days and cell viability was quantified. Statistically different *p < 0.05 from control (Student’s test).