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. 2021 Jul 27;7(3):104. doi: 10.3390/gels7030104

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© 2021 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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Swollen appearance of various silver salt loaded CNC films. (1) silver nitrate with CNC, (2) silver nitrate with CNC and glycerol, (3) silver sulphate with CNC, (4) silver sulphate with CNC and glycerol, (5) silver acetate with CNC, (6) silver acetate with CNC and glycerol.