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. 2020 Oct 1;12(10):2261. doi: 10.3390/polym12102261

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© 2020 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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(A) Self-healing after injection. (B–D) Rheological characterization of (B) Chitosan/Poly/ethylene glycol hydrogel deformation and recovery. G′ (filled symbols) and G″ (empty symbols). (C) G′ and G″ with time during the self-healing process. (D) Comparison of original and self-healed hydrogels. Reproduced by permission of The Royal Society of Chemistry from B. Yang et al. Facilely prepared inexpensive and biocompatible self-healing hydrogel: a new injectable cell therapy carrier [56].