fig3

Figure 3. Scheme of the main organic nanoparticles investigated for counteracting MDR in cancer. From the left to the right side, liposomes, solid lipid nanoparticles (SLNs), nanostructured lipid carriers (NLCs), polymeric nanoparticles (NPs), and dendrimers are depicted. Possible functionalization with targeting ligands and external stimuli exploited for triggered drug release are reported. MDR: multidrug resistance