Chitosan/pectin polyelectrolyte complex(PEC) was preparped through the reaction between natural chitosan and pectin, and a PEC membrane was made. The swelling and pH stimuli response characterristics of the PEC membrane were investigated. The drug release profiles of the PEC membrane were tested at different pH.
【分类号】
O641.4
【正文快照】
聚电解质配合物 ( PEC)是由两种带相反电荷的聚电解质在溶液中反应的产物。通常指聚阳离子和聚阴离子相互作用形成的一类物质。PEC智能性水凝胶对环境刺激 ( p H、温度等 )具有可感知、可响应的能力[1] 。这类材料在分离膜、药物释放体系、生物酶以及细胞固定化等方面有诱人的?