Porous Maltodextrin-Based Nanoparticles: A Safe Delivery System for Nasal Vaccines

Figure 1

Schematic view of the NPL. (a) NPL are porous cationic maltodextrin-based nanoparticles with an anionic lipid core. (b) Representative microphotograph using a low-voltage transmission electronic microscope. NPL appear in black while residual aqueous diluent is in grey. The scale bar is 100 nm.