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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: Nanoscale Horiz. 2021 Jul 20;6(9):696–717. doi: 10.1039/d1nh00179e

Figure 5.

Figure 5.

Effect of magnetic field strength on the relaxivity of IONP. (a) r1 values of naked magnetite nanoparticles (MF), oleic acid coated nanoparticles (NaOA-MF), polyacrylic acid coated nanoparticles (PAA-MF), citric acid coated nanoparticles (CA-MF), and Resovist, a commercialy available iron oxide nanoparticle formulation. Relaxivity values were measured at different field strengths between 0.47 T and 9.4 T. (b) The r2 values of the nanoparticle formulations measured at various field strengths. Reproduced with permission.106 Copyright 2012, Elsevier.