OBJECTIVE: To prepare sponge-like wound-healing dressing of good porosity, hydrophilia and air permeability by means of frozen chitosan-gelatin mixture induced phase separation.

• 目的：通过冷冻壳聚糖-明胶共混液诱导相分离的方法，制成多孔性、亲水性、透气性良好的海绵状伤口敷料。