Fig. 4From: Biodistribution of biodegradable polymeric nano-carriers loaded with busulphan and designed for multimodal imagingMagnetic resonance imaging (MRI) of SPION-PEG-PCL micelle phantom. a T * 2 -weighted MR phantom images of SPION-PEG-PCL at different TEs (TR = 1200 ms; TE = 2, 5.8, 11.5 and 17.2 ms), b Proton transverse relaxation rate (R * 2 = 1/T * 2 ) of phantom samples versus iron concentration in mMBack to article page