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. 2020 Mar 6;8:124. doi: 10.3389/fchem.2020.00124

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Copyright © 2020 Liu, Liu, Cui, Wang, Zhang and Tang.

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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The characteristics of the magnetic hydrogel. (A) General view of the magnetic hydrogel. The magnified image was obtained by a scanning electron microscope (SEM). (B) Magnetic responses of the magnetic hydrogel. Blue arrows suggested the hydrogel movement orientation before the next time point. (C) Representative images of F-actin (green) by fluorescence microscopy and magnetic nanoparticles (black) by light microscopy showed the endocytosis of MNPs by BMSCs [reproduced with permission from Zhang et al. (2015), Copyright 2015 American Chemical Society].