Chitosan-Alginate Nanoparticle System Efficiently Delivers Doxorubicin to MCF-7 Cells

Figure 9

Fluorescence microscopic observations of cellular uptake of MCF-7 cells treated with different concentrations of free DOX, DOX Csn-Alg NP, and DOX Csn NP after 30 min, 2 h, and 24 h after incubation.