Skip to main content
. 2017 Dec 31;2017:9090325. doi: 10.1155/2017/9090325

Figure 1.

Figure 1

Schematic representation of passive and active targeting approaches. The diagram includes different types of ligands that can be conjugated with NPs for active targeting. EPR, enhanced permeability and retention; NP, nanoparticle; PEG, polyethylene glycol.