A facile method for preparation of green and antibacterial hydrogel based on chitosan and water-soluble 2,3-dialdehyde cellulose

编号 020031905

推送时间 20211129

研究领域 林产化工 

年份 2021 

类型 期刊 

语种 英语

标题 A facile method for preparation of green and antibacterial hydrogel based on chitosan and water-soluble 2,3-dialdehyde cellulose

来源期刊 Cellulose

期 第319期

发表时间 20210519

关键词 Hydrogel;  Chitosan;  2;  3-dialdehyde cellulose;  Preparation and characterization; 

摘要 Chitosan (CS) has been widely used to prepare natural hydrogel duo to its characteristics. However, most of the methods of preparing CS-based hydrogel are complicated and not green, which limits its further application. In this work, a green and antibacterial CS-based hydrogel was prepared by simple Schiff base reaction between CS and water-soluble 2,3-dialdehyde cellulose (DAC) obtained by simple heat treatment of DAC of high oxidation degree. The effect of DAC dosage on the properties of hydrogel, including water content, swelling behavior, water retention, hydrogel strength and viscoelasticity, was evaluated. Fourier transform infrared spectroscopy, scanning electron microscopy, elemental analysis and thermogravimetric analysis were employed to characterize the hydrogel. The antibacterial activity of hydrogels against?Escherichia coli?and?Staphylococcus aureus?was confirmed in vitro experiments. The green and antibacterial CS-based hydrogel prepared with this facile strategy would be a promising candidate for the application in the area of biomedicine, food storage, etc.

服务人员 尚玮姣

服务院士 宋湛谦

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