Figure 3.
PC9 and A549 showed great cellular uptake of the amine-modified mesoporous silica nanoparticles within 4-hour incubation. FM: FITC-conjugated MSN-NH2; FMP: PEI-absorbed FMSN; FMPT: T + PEI-absorbed FMST; T: pSB-ASNase + SB100. The amount of FMSN was 25 µg/mL, the PEI was 2.25 µg/mL for PC9 cells and 4.5 µg/mL for A549 cells. T: pSB-ASNase + SB100. **Indicates the statistical differences (**p < 0.001) compared with controls.