Adaptable Hydrogel with Strong Adhesion of Wet Tissue for Long‐Term Protection of Periodontitis Wound

Honggui Chen; Zifan Zhao; Rui Zhang; Guo Zhang; Xiaoyang Liang; Chen Xu; YuChun Sun; Yang Li; Cyrille Boyer; Fu‐Jian Xu

doi:10.1002/adma.202413373

journal article Nov 20, 2024

Adaptable Hydrogel with Strong Adhesion of Wet Tissue for Long‐Term Protection of Periodontitis Wound

Honggui Chen Zifan Zhao

Rui Zhang

Guo Zhang

Xiaoyang Liang Chen Xu

YuChun Sun Yang Li

Cyrille Boyer

Fu‐Jian Xu

Advanced Materials Vol. 37 No. 1 · Wiley

View at Publisher Save 10.1002/adma.202413373

Abstract

AbstractPeriodontitis is a severe gum infection characterized by inflammation of the tissues surrounding the teeth. The disease is challenging to manage due to its exposure to a wet and dynamic oral environment, where conventional hydrogels often suffer from weak adhesion, short residence time, and vulnerability to bacterial invasion. In this study, an innovative hydrogel system based on in situ light curing is proposed. The hydrogel precursor, comprising sodium alginate and a calcium ion network, is designed and adhere to the irregular and smooth surfaces of periodontal tissue before curing. Upon light irradiation, a second network polymerizes rapidly, establishing multiple interactions with the tissue, which enhances adhesion strength. Benefited from this engineering strategy, the hydrogel exhibits a low swelling rate, effectively mitigating adhesion loss in the moist oral environment. Additionally, the hydrogel demonstrates excellent long‐lasting wet adhesion, maintaining its presence in periodontal tissue over 120 hours. It also serves as an effective physical barrier against bacterial invasion, achieving a blocking efficiency of 99.9%. This novel design concept offers a promising approach for developing advanced medical dressings for periodontitis, providing sustained therapeutic benefits.

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Details

Published: Nov 20, 2024
Vol/Issue: 37(1)
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Authors

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Honggui Chen