Fig. 2From: Biodistribution of biodegradable polymeric nano-carriers loaded with busulphan and designed for multimodal imagingMorphological images of SPIONs, PEG-PCL micelles and SPION-loaded polymer micelles using field emission transmission electron microscopy (FE-TEM). a SPIONs, b high resolution image of a single SPION, c positively stained PEG-PCL micelles, d positively stained SPION-PEG-PCL micellesBack to article page