Review on Medical Applications of Manganese Oxide (Mn²⁺, Mn³⁺, and Mn⁴⁺) Magnetic Nanoparticles

Figure 15

MRI properties of ovalbumin loaded Mn₃O₄ NPs: (a, b) T1-weighted MR imaging in comparison to water, (c) a plot of the longitudinal (T1) relaxation rates of the prepared Mn₃O₄@PF68-OVA NV nanoprobes against different Mn concentrations, (d) T1-weighted MR images of a mouse before injection and 10, 30, 60 min, 1.5, and 18 hr postinjection, (e) the pseudo color images corresponding to (d, f) cross-section T1-weighted MR images in the control group and (g, h) T1-weighted MR images of a mouse before and 24, 48 hr of postsubcutaneous injection, and (i) in vivo MR imaging with (j, k) the pseudo-color images corresponding to (d) after 100 hr of vaccination (reprinted with permission from [157], Elsevier, 2023).

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