Preparation and characterization of a Schiff-based chitosan-fructose quaternary ammonium salt for medical applications.

The aim of this study was to develop a new chitosan derivative and investigate its effects on fresh tissue healing in rats. A chitosan-fructose Schiff based quaternary ammonium salt (CS = Fru-DEAE) was synthesized for the first time and characterized using FT-IR and HNMR, and the modification rate and the solution properties were studied. A rat wound model was established, and the experimental group was treated using 0.