Hofmeister Effect‐Assisted Strong Natural Biopolymer‐Based Hydrogels with Multi‐Functions

Main observation and conclusion 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 biopol...

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Bibliographic Details
Published in:Chinese journal of chemistry 2021-11, Vol.39 (11), p.3085-3092
Main Authors: Cai, Yaqian, Shi, Jiachuan, Liu, Fangzhe, Li, Haichao, Man, Xinya, Guan, Shuang
Format: Article
Language:English
Subjects:
Biocompatibility
Biopolymers
Chitosan
Crosslinking
Electrical conductivity
Electrical resistivity
Fatigue strength
Gelatin
Hofmeister effect
Hydrogels
Hydrophobicity
Mechanical properties
Multi‐Fuctions
Natural biopolymer‐based hydrogels
Polymers
Recyclability
Shape memory
Strain
Tensile stress
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Summary:Main observation and conclusion 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. Hydrogel is still a challenging problem. Herein, a natural bi‐opolymer‐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.
ISSN:1001-604X
1614-7065
DOI:10.1002/cjoc.202100408