Fig. 3
Cellular uptake evaluation of RAW 264.7 cells. A Qualitative analysis of uptake by RAW 264.7 cells incubated with Free C6, LF@C6-NPs, or HA/LF@C6-NPs with or without HA. B Quantitative analysis of uptake by RAW 264.7 cells. a incubated with Control, Free C6, LF@C6-NPs, and HA/LF@C6-NPs; b incubated with LF@C6-NPs and HA/LF@C6-NPs with or without HA; c Quantitative determination of HA/LF@C6-NPs uptake by RAW 264.7 cells after 4 h incubation at different concentrations (0, 6.25, 12.5, 25, 50, and 100 ng/mL); d Quantitative determination of HA/LF@C6-NPs uptake by RAW 264.7 cells after 4 h incubation at different times (0, 0.25, 0.5, 1, 2, and 4 h). Data are represented as the mean ± SEM (n = 3). *p < 0.05; **p < 0.01