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. 2021 Mar 22;13(3):424. doi: 10.3390/pharmaceutics13030424

Figure 2.

Figure 2

Morphology characterization and particles’ zeta size measurements of nGO and nGO-PEG. (A): Size and morphology of the nGO NPs: nGO morphology was studied on JEOL JEM-2100 high-resolution transmission electron microscope (HR-TEM) operated at 200 kV. The nanoparticles’ size was estimated by Zetasizer and results are presented by a histogram on the right panel. (B): Size and morphology of the nGO-PEG nanoparticles (NPs): nGO-PEG morphology was studied on JEOL JEM-2100 high-resolution transmission electron microscope (HR-TEM) operated at 200 kV. The nanoparticles’ size are presented by histogram on the right panel.