文献类型：期刊文献

英文题名：A multiscale biomimetic strategy to design strong, tough hydrogels by tuning the self-assembly behavior of cellulose

作者：Xie, Yitong[1,2,3] Gao, Shishuai[1,2] Ling, Zhe[2] Lai, Chenhuan[2] Huang, Yuxiang[5] Wang, Jifu[1,2] Wang, Chunpeng[1,2] Chu, Fuxiang[1,2] Xu, Feng[3] Dumont, Marie-Josee[4] Zhang, Daihui[1,2]

第一作者：Xie, Yitong

通信作者：Zhang, DH[1];Zhang, DH[2]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Natl Engn Lab Biomass Chem Utilizat,Key Lab Bioma, Key Lab Chem Engn Forest Prod,Natl Forestry & Gra, Nanjing 210042, Jiangsu, Peoples R China;[2]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing 210037, Jiangsu, Peoples R China;[3]Beijing Forestry Univ, Coll Mat Sci & Technol, Beijing 100083, Peoples R China;[4]McGill Univ, Dept Bioresource Engn, 21111 Lakeshore Rd, Ste Anne De Bellevue, PQ, Canada;[5]Chinese Acad Forestry, Res Inst Wood Ind, 1 Dongxiaofu, Beijing 100091, Peoples R China

年份：2022

卷号：10

期号：26

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20222412232411);Scopus(收录号：2-s2.0-85131809212);WOS:【SCI-EXPANDED(收录号:WOS:000806868300001)】；

基金：this study was supported by the National Natural Science Foundation of China (31890774), National Natural Science Foundation for Youth (32001283), Fundamental Research Funds for the Central Nonprofit Research Institution of Chinese Academy of Forestry (CAFYBB2021QB004).

语种：英文

外文关键词：Adhesives - Biomimetics - Cellulose - Economic and social effects - Musculoskeletal system - Self assembly - Tensile strength - Toughness

摘要：Strong and tough hydrogels have gained popularity for various applications; however, their fabrication remains challenging, particularly when incorporating functionalities. Here, we describe a novel facile multiscale biomimetic strategy that combines molecular and structural engineering to fabricate strong and tough hydrogels. More specifically, a non-covalent-bonding-driven self-assembled cellulose skeleton is embedded in a polyacrylamide matrix. Water-induced cellulose self-assembly facilitates the production of a biomimetic design. The resulting hydrogel exhibited unique interesting features, including the hierarchical structure of the skin, molecular-scale regulation of the enhanced skeleton, and incorporation of physical interfacial interactions. The resultant hydrogels showed excellent tensile strength, toughness and stretchability, with antibacterial, anti-freezing, and adhesive properties desirable for sensor applications. This study proposes an effective strategy that can be used to overcome the challenge of the mutual exclusivity of high strength and toughness and circumvent the trade-off between functionalities and mechanical properties. Thus, this study provides new insights for designing strong and tough hydrogels.