Folate-BSANP could be delivered into tumor cells via folate receptor-mediated endocytosis and significantly targeted to tumor cells with rich folate receptors.

• 叶酸偶联白蛋白纳米粒能通过细胞膜上的叶酸受体介导内吞入胞，可显著靶向于叶酸受体丰富的肿瘤细胞。