以气体致孔法制备壳聚糖(Chi)-海藻酸(Alg)聚电解质复合膜.用激光共聚焦扫描显微镜(LCSM)观测并分析复合膜的形态结构.结果表明,LCSM无需样品处理即可原位观察Chi-Alg聚电解质复合膜在不同层面上的内部形态结构,通过调整添加剂NaHCO3的用量可以得到平均孔径分布在30～165 μm的复合膜.该聚电解质复合膜作为一种潜在的生物医用材料,有望与细胞、药物及活性因子结合,在组织工程皮肤领域得到应用.
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