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. 2020 Jan 7;15:31–47. doi: 10.2147/IJN.S227931

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© 2020 Gholami et al.

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Characterization of metal-doped FHs. (A) RT reaction for FH-associated cations obtained before and after washing with 0.1 M HEPES and separation of the wash with Amicon filters. (B) 120°C reaction for FH-associated cations obtained as in 2a. (C) Sizes (diameter, nm) of metal-doped FHs obtained by light scattering. (D) Transverse (r₁, spin-lattice) and longitudinal (r₂, spin-spin) relaxivities of metal-doped FHs and the control FH are shown.