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. 2022 Jul 5;14(13):2750. doi: 10.3390/polym14132750

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© 2022 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 (https://creativecommons.org/licenses/by/4.0/).

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Stereoscopic microscope images and the values of the contact angle (deg) of the modified chitosan hydrogel films (a) CS; (b) CS/Gly; (c) CS/Rh B; and (d) CS/NPs Rh B.

Stereoscopic microscope images and the values of the contact angle (deg) of the modified chitosan hydrogel films (a) CS; (b) CS/Gly; (c) CS/Rh B; and (d) CS/NPs Rh B.