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. 2020 Jan 17;10:1580. doi: 10.3389/fphys.2019.01580

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Copyright © 2020 Shen, Xiao, Zhang, Wu, Gao and Shi.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Characterization of Fe₃O₄ magnetic nanoparticles. (A) Representative scanning electronic microscopy (SEM) images of Fe₃O₄-NPs (scale bar = 500 nm). (B) Representative transmission electron microscopy (TEM) images of Fe₃O₄-NPs (scale bar = 200 nm). (C) Dynamic light scattering (DLS) of Fe₃O₄-NPs.