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. Author manuscript; available in PMC: 2017 Apr 26.
Published in final edited form as: Semin Ophthalmol. 2016;31(1-2):1–9. doi: 10.3109/08820538.2015.1114865

Figure 4. PEG-PLGA nanoparticles present a diameter of 50 nm, with blunt edges, and can be localized inside the cell.

Figure 4

TEM images from ARPE-19 cells treated with PEG-PLGA NPs. (A) Characterization of size and shape of PEG-PLGA NPs. The hydrodynamic diameter was 50 nm, as measured by light scattering. Edges were blunt, without sharp spicules. (B) ARPE-19 cells treated with PEG-PLGA evidenced presence of the NPs within the cellular compartment, most likely in the endosomal system (arrows).