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. 2014 Jan 27;7(2):673–726. doi: 10.3390/ma7020673

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© 2014 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

PMC Copyright notice

Scheme 10. — Schematic structures of (a) FSP (Reprinted with Permission from [251]. Copyright 2012 Elsevier) and (b) template in Fe₃O₄@SiO₂@IIP (Reprinted with permission from [252]. Copyright 2011 Elsevier).