Figure 1

GoldMag nanoparticles characterization. TEM, HRTEM, size distribution histograms, hydrodynamic diameter and EDS of 30 nm ( A, B, C, D, E and K ) and 50 nm ( F, G, H, I, J and L ) GMNPs. MR images of 30 nm and 50 nm GMNPs with different concentrations; the r₂ relaxivity of each are shown in (M) and (N), respectively.