数字农科院2.0

Degradable, anti-swelling, high-strength cellulosic hydrogels via salting-out and ionic coordination

文献类型： 外文期刊

作者： Feng X.;Xing C.;Wang C.;Tian Y.;Shang S.;Liu H.;Huang X.;Jiang J.;Song Z.;Zhang H.

作者机构：

关键词： Cellulosic hydrogels;Motion monitoring;Salting-out

期刊名称： International Journal of Biological Macromolecules

ISSN： 0141-8130

年卷期： 2024 年 267 卷

页码：

收录情况： SCIE（2024版） ; ; EI（2024版）

摘要： Cellulosic hydrogels are widely used in various applications, as they are natural raw materials and have excellent degradability. However, their poor mechanical properties restrict their practical application. This study presents a facile approach for fabricating cellulosic hydrogels with high strength by synergistically utilizing salting-out and ionic coordination, thereby inducing the collapse and aggregation of cellulose chains to form a cross-linked network structure. Cellulosic hydrogels are prepared by soaking cellulose in an Al2(SO4)3 solution, which is both strong (compressive strength of up to 16.99 MPa) and tough (compressive toughness of up to 2.86 MJ/m3). The prepared cellulosic hydrogels exhibit resistance to swelling in different solutions and good biodegradability in soil. The cellulosic hydrogels are incorporated into strain sensors for human-motion monitoring by introducing AgNWs. Thus, the study offers a promising, simple, and scalable approach for preparing strong, degradable, and anti-swelling hydrogels using common biomass resources with considerable potential for various applications. © 2024 Elsevier B.V.

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