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. 2019 Aug 28;11(9):1417. doi: 10.3390/polym11091417

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© 2019 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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Thermal Gravimetric (TG) curves of the thermal degradation of (a) chitosan (CS), (b) modified chitosan microspheres (CSM), (c) Cu²⁺-loaded modified chitosan microspheres (CSM@ Cu^II), and (d) Cu-loaded modified chitosan microspheres (CSM@Cu⁰).