In this paper, the application of polyelectrolyte complexes in responsive drug delivery, cell immunoisolation transplantation, polypeptide and protein drug delivery and gene therapy were reviewed.

• 对聚电解质复合物在响应型药物控释、细胞免疫隔离移植、多肽蛋白质药物的缓释及基因治疗等领域的应用进行了综述。