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. 2023 Dec 4;9(12):951. doi: 10.3390/gels9120951

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© 2023 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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Dual stimuli-responsive selenium-functionalized starch-based hydrogels. Red dot=Rhodamine B. (A) Schematic illustration of stimuli-responsive starch-based hydrogels by enzyme, oxidation, and reduction responsiveness. (B) Synthetic routes of stimuli-responsive starch-based hydrogels. KPS = potassium persulfate. (C–E) Rhodamine B release profiles of starch-based hydrogels under various conditions. DTT = dithiothreitol. Reproduced with permission from Sun et al. [31] (Copyright 2018, Royal Society of Chemistry).