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

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....