中文摘要：

Hydrogel has emerged as an excellent carrier platform for smart drug delivery and effective cancer treatment due to its high water content, good biocompatibility and sufficient mechanical properties. In this work,the DOX-loaded polyvinyl alcohol( PVA)hydrogel was prepared by freeze-thawing technique. The swelling test and the mechanical properties of the pure PVA hydrogels were performed. In addition, the in vitro drug release profiles were examined and the in vitro antitumor efficiency against He La cells was also estimated. The results indicated that the resulting PVA hydrogels contained significant amounts of water and possessed good mechanical properties,and DOX-loaded PVA hydrogel exhibited a sustained and p H-responsive DOX release. The MTT assays also demonstrated that the released DOX could effectively inhibit the proliferation of He La cells. Thus,the cross-linked PVA hydrogel can be further developed as a promising platform for cancer therapy.

英文摘要：

Hydrogel has emerged as an excellent carrier platform for smart drug delivery and effective cancer treatment due to its high water content, good biocompatibility and sufficient mechanical properties. In this work,the DOX-loaded polyvinyl alcohol（ PVA）hydrogel was prepared by freeze-thawing technique. The swelling test and the mechanical properties of the pure PVA hydrogels were performed. In addition, the in vitro drug release profiles were examined and the in vitro antitumor efficiency against He La cells was also estimated. The results indicated that the resulting PVA hydrogels contained significant amounts of water and possessed good mechanical properties,and DOX-loaded PVA hydrogel exhibited a sustained and p H-responsive DOX release. The MTT assays also demonstrated that the released DOX could effectively inhibit the proliferation of He La cells. Thus,the cross-linked PVA hydrogel can be further developed as a promising platform for cancer therapy.