Objective:To prepare PLGA microspheres for the delivery of biopharmaceutical macromolecular drugs and use BSA as the model drug.

• 目的:以牛血清白蛋白(BSA)为模型药,探讨乳酸-羟基乙酸共聚物(PLGA)用于包裹生物大分子药物的可行性。