Results There was no potential allergic substance in PEG-PL4-PGL polymer, and no hemolytic reaction, acute systemic toxicity effect or pyrogen reaction was observed.

• 结果聚乙二醇-聚乳酸-聚谷氨酸共聚物浸提液无溶血反应和急性全身毒性反应，无热源反应，材料中不存在致敏性物质。