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. 2022 Jan 15;200(12):5145–5158. doi: 10.1007/s12011-022-03102-z

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© The Author(s) 2022

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Fig. 1 — Characterization of synthesized magnetite nanoparticles. a HR-TEM image of the spherical shape of MNPs with an average size of 25.0 ± 5.0 nm. b Particle size distribution by number measured by dynamic light scattering (DLS) shows the size of MNP is 25.8 nm from the observed peak. c XRD diffraction pattern shows the formation of Fe₃O₄