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. 2019 Mar 6;14:1707–1723. doi: 10.2147/IJN.S193981

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© 2019 Albinali et al. This work is published and licensed by Dove Medical Press Limited

The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.

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TEM results of (A–C) SG-1, (D–F) SG-2, and (G–I) SG-3 composites.

Notes: The composites prepared with 0.22, 0.31, and 0.45 mmol of TEOS were named as SG-1, SG-2, and SG-3 composites, respectively. Reproduced from Uribe Madrid SI, Pal U, Kang YS, Kim J, Kwon H, Kim J. Fabrica tion of Fe₃O₄@mSiO₂ core-shell composite nanoparticles for drug delivery applications. Nanoscale Res Lett. 2015;10(1):217. Copyright © Uribe Madrid et al.; licensee Springer. 2015. Creative Commons License available from: https://creativecommons.org/licenses/by/4.0/legalcode.¹⁷¹

Abbreviations: TEM, transmission electron microscopy; TEOS, tetraethylorthosilicate.