Figure 1
From: Shape dependent cytotoxicity of PLGA-PEG nanoparticles on human cells
PLGA-PEG NPs with different shapes. SEM images of (a) spherical-shaped and (b) needle-shaped PLGA-PEG NPs, insert are the magnified TEM images; (c,d) Corresponding confocal images showing the fluorescence coming from incorporated Nile Red dye.
