Figure 3From: Size-dependent endocytosis of gold nanoparticles studied by three-dimensional mapping of plasmonic scattering imagesThe dark-field images for 70-nm-AuNPs and cells. The images show 70-nm-AuNPs and HeLa cells at different interaction time. The last image was taken at top of the cell. It shows that many AuNPs were sent to top of the cell membrane without being internalized. The scale bar is 10 μm.Back to article page