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. 2017 Jan 23;22(1):179. doi: 10.3390/molecules22010179

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© 2017 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 (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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TEM micrographs of (a) and (c) the CA-Fe₃O₄ NPsdispersed in water at different magnification; (b) and (d) the CA-Fe₃O₄@Zn/AMP gels dissolved in water at different magnification.