Research progress in preparation and application of hemicellulose-based hydrogels

Abstract

Hemicellulose-based hydrogels are three-dimensional networks formed by crosslinking hydrophilic polymers with tunable swelling behavior,acceptable biocompatibility and mechanical properties,and have received much attention in the field of soft materials especially in hemicellulose-based materials.Herein,recent advances and developments in hemicellulose-based hydrogels were reviewed.The preparation methods,mechanism of their gelation process,and the performance of the hemicellulose-based hydrogels were presented from both chemical and physical cross-linking approaches,while the differences in various initiation systems such as light,enzyme,microwave irradiation and glow discharge electrolysis plasma in chemical cross-linking were compared.The latest applications of hemicellulose-based hydrogels in drug-controlled release,wound dressing,water purification,3D printing dispersions, etc,were introduced, respectively.Finally,the challenges in the development of hemicellulose-based hydrogels were summarized briefly and future prospect was also given,which provides a reference for the synthesis of new hemicellulose-based hydrogels.

Keywords

• hemicellulose
• hydrogel
• preparation
• drug-controlled release
• wound dressing
• adsorption