Imaging Characteristics of USPIO Nanoparticles (<5 nm) as MR Contrast Agent In Vitro and in the Liver of Rats
The core size distribution of USPIO. (a) TEM images of USPIO nanoparticles were utilized during the experiment. Inset: high-resolution TEM image of a nanoparticle; scale bar, 5 nm. (b) The core size distribution of USPIO nanoparticles with mean diameter, 3.26 nm, and standard deviation, 0.87 nm, determined from the TEM images.
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