Fig. 2From: In Vitro Effects of Hollow Gold Nanoshells on Human Aortic Endothelial CellsThe TEM images of HAECs incubated with hollow gold nanoshells for 24 h. a, b HAEC without hollow gold nanoshells. c, d HAEC incubated with hollow gold nanoshells. The scale bars indicate 2 μm in a and c and 0.5 μm in b and d. n nucleus. Arrows denote the hollow gold nanoshells or particulate matterBack to article page