Fig. 2From: The adverse vascular effects of multi-walled carbon nanotubes (MWCNTs) to human vein endothelial cells (HUVECs) in vitro: role of length of MWCNTsThe TEM pictures of XFM22 (the shorter MWCNT; a and c) and XFM19 (the longer MWCNT; b and d) before sonicationBack to article page