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. 2022 Feb 1;29(4):2223–2240. doi: 10.1007/s10570-022-04441-9

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Fig. 1 — TEM images of synthesized nanoparticles: A TiO₂ nanoparticles, B Fe_xO_y sample 1, synthesized by co-precipitation, and C Fe_xO_y sample 2 synthesized by the diol-based method