Figure 2From: Preparation and evaluation of poly(2-hydroxyethyl aspartamide)-hexadecylamine-iron oxide for MR imaging of lymph nodesTEM image and size distribution. (A) TEM image and size distribution of (B) 20-nm, (C) 60-nm, and (D) 150-nm PHEA-C16-iron oxide nanoparticles.Back to article page