Hofmeister Effect-Assisted Strong Natural Biopolymer-Based Hydrogels with Multi-Functions
作者机构：Department of Polymeric and Soft Materials LaboratorySchool of Chemistry and Life Science and Advanced Institute of Materials ScienceChangchun University of TechnologyChangchunJilin130012 China
出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)
年 卷 期：2021年第39卷第11期
页 面：3085-3092页
核心收录：
学科分类：07[理学] 070305[理学-高分子化学与物理] 0703[理学-化学]
基 金：This research was supported by Project of the Jilin Provincial Science and Technology Department China(No.20190201078JC).
主 题：Natural biopolymer-based hydrogels Mechanical properties Polymers Hofmeister effect Multi-Fuctions
摘 要：Natural biopolymer-based hydrogels have been extensively studied in recent years due to their excellent biocompatibility.However,the preparation of multi-functional and tough natural biopolymer-based hydrogels is still a challenging problem.Herein,a natural biopolymer-based hydrogel is prepared using gelatin and carboxymethyl chitosan(CMCS)through a one-step soaking method.The prepared hydrogel without any synthetic polymers and crosslinking agents has a fully physical crosslinking structure.Due to the hydrophobic interaction brought by the Hofmeister effect,the mechanical properties of soaked hydrogels(tensile stress and strain can reach 3.77 MPa and 1082%)are superior to conventional protein hydrogels.In addition,the prepared gelatin/carboxymethyl chitosan(Gel/CMCS)hydrogels exhibit a variety of appealing properties,including good shape memory,fatigue resistance,electrical conductivity,water retention,drug releasing,antibacterial property,and recyclability.This strategy opens up a new horizon to fabricate hydrogels with excellent mechanical properties and multiple functions,which can extend their applications in the biomedicine area and other related fields.
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