中国塑料 ›› 2025, Vol. 39 ›› Issue (7): 6-11.DOI: 10.19491/j.issn.1001-9278.2025.07.002

• 材料与性能 • 上一篇    下一篇

疫苗佐剂用阳离子聚乳酸纳微颗粒的制备及调控研究

赵晓欢(), 王岩森, 孙靖山, 邓静倩, 祁丽亚, 侯丹丹(), 王春堯, 谈心妤   

  1. 中石化(北京)化工研究院有限公司,北京 100013
  • 收稿日期:2024-12-23 出版日期:2025-07-26 发布日期:2025-07-22
  • 通讯作者: 侯丹丹(1981-),女,高级工程师,研究方向为医用修复材料,houdd.bjhy@sinopec.com
    E-mail:zhaoxh.bjhy@sinopec.com;houdd.bjhy@sinopec.com
  • 作者简介:赵晓欢(1996-),女,工程师,研究方向为医用修复材料,zhaoxh.bjhy@sinopec.com

Study on preparation and regulation of cationic polylactic acid nano⁃microparticles for vaccine adjuvant

ZHAO Xiaohuan(), WANG Yansen, SUN Jingshan, DENG Jingqian, QI Liya, HOU Dandan(), WANG Chunyao, TAN Xinyu   

  1. Sinopec (Beijing) Research Institute of Chemical Industry Co,Ltd,Beijing 100013,China
  • Received:2024-12-23 Online:2025-07-26 Published:2025-07-22
  • Contact: HOU Dandan E-mail:zhaoxh.bjhy@sinopec.com;houdd.bjhy@sinopec.com

摘要:

采用乳化法,通过改良乳化工艺制备了双十八烷基二甲基溴化铵(DDAB)⁃聚乳酸(PLA)纳微颗粒,通过改变油/水相比例与乳化剂浓度,使DDAB⁃PLA纳微颗粒的粒径实现了调控,同时测试了不同阳离子含量DDAB⁃PLA纳微颗粒的细胞毒性。结果表明,制备的DDAB⁃PLA纳微颗粒具有纳微级尺寸分布,平均粒径约490 nm;改变水相量与乳化剂浓度,可实现DDAB⁃PLA纳微颗粒在167~786 nm尺寸范围内的调控。此外,DDAB⁃PLA纳微颗粒对L929细胞与DC几乎无细胞毒性,具有高生物安全性。

关键词: 聚乳酸, 乳化法, 纳微颗粒, 颗粒尺寸, 疫苗佐剂

Abstract:

DDAB⁃PLA nano⁃microparticles were synthesized via an improved emulsification method, with particle size controlled by adjusting the oil/water phase ratio and emulsifier concentration. The cytotoxicity of DDAB⁃PLA particles with varying cationic contents was also evaluated. The resulting particles exhibited a nano⁃ to micro⁃scale size distribution, with an average diameter of approximately 490 nm. By modulating the aqueous phase volume and emulsifier concentration, the particle size could be precisely tuned within the range of 169~786 nm. Furthermore, DDAB⁃PLA nano⁃microparticles demonstrated negligible cytotoxicity toward L929 cells and DC, indicating excellent biocompatibility.

Key words: polylactic acid, emulsification method, nano?microparticle, particle size, vaccine adjuvant

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