Figure 16.
Chemical structure of the multiblock copolymer PLGA–PEG–PLGA (PEP). The X and Y represent the numbers of repeating subunits of lactic and glycolic acid, respectively, and the n represents the number of ethylene glycol subunits. Nanoparticles made using PEP have been shown to possess characteristics that encourage further research into their usage for brain drug-delivery applications.
