By freezing chitosan-gelatin complex induced phasic abruption,the porous and ventilative sponge of echitosan-gelatin was made.

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