Figure 4
From: Shape dependent cytotoxicity of PLGA-PEG nanoparticles on human cells

The effects of PLGA-PEG NPs’ shape on cell morphology. TEM images of the morphologies of HepG2 cells after their being fed with (a) none (control sample), (b) spherical-, and (c) needle-shaped NPs at 250 µg/mL for 24 hours. (Scale bar: 2 µm).