英语语法分析

ObjectiveTo explore the methods of low temperature preservation for alginate-polylysine-alginate (APA) microcapsules.

目的探讨海藻酸钙-多聚赖氨酸-海藻酸钙（APA）微囊低温保存的降温方法。

Objective . This study was undertaken to test the feasibility of local gene transfer in vivo using polylysine- coated balloon catheter.

目的：研究多聚赖氨酸包被的球囊导管作在体定向基因转导的可行性。

Polylysine could enhance the adhesion of cell onto the artificial bone material. IGF_1increased the proliferation of osteoblast markedly.

多聚赖氨酸可促进细胞对材料的黏附，IGF_1对成骨细胞的增殖促进作用明显。