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. 2021 Dec 23;9:785302. doi: 10.3389/fbioe.2021.785302

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Copyright © 2021 Lan, Zhu, Chen, Zhang, Zou and Zeng.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Representative photographs of the acute skin wounds after being treated with S₄Q₄G₄ hydrogel group and Tegaderm film control groups at each time point. (B) Traces of wound-bed closure during 21 days for each treatment. (C) Wound closure curves with hydrogel and control treatments. (D) Average healing times for each treatment. (E) H&E, Masson’s trichrome stains, and Picrosirius red staining of wound tissues. Scale bar: 200 μm.