首页> 外文期刊>Journal of Microencapsulation: Microcapsules Liposomes Nanoparticles Microcells Microspheres >Preparation and in vitro evaluation of surface-modified poly (lactide-co-glycolide) microparticles as biodegradable drug carriers for pulmonary peptide and protein delivery
【24h】

Preparation and in vitro evaluation of surface-modified poly (lactide-co-glycolide) microparticles as biodegradable drug carriers for pulmonary peptide and protein delivery

机译:表面修饰的聚丙交酯-乙交酯共聚物微粒的制备及体外评价,作为可生物降解的药物载体,用于肺部肽和蛋白质的输送

获取原文
获取原文并翻译 | 示例
           

摘要

The present study reports the preparation and physicochemical characterization of surface-modified poly(lactide-co-glycolide) (PLGA) microparticles containing interleukin-2 (rhIL-2) for pulmonary delivery. The surface of the microparticles was modified with mucoadhesive polymers such as chitosan and Carbopol 971P. The feasibility of this surface modification was confirmed by measuring the zeta potential. Chitosan-modified PLGA microparticles showed a positive zeta potential, while Carbopol-modified PLGA microparticles were negatively charged. The mucin binding efficiency values have shown that the positively charged chitosan coated microparticles showed a higher adhesive percent to the mucin than the negatively charged un-coated or Carbopol 971P coated microparticles. Furthermore, surface modification of microparticles with chitosan and Carbopol 971P has yielded a slight decrease in the amount of protein initially released. These findings suggest the suitability of surface-modified PLGA microparticles as an efficient carrier system for delivery peptides and proteins to the respiratory tract.
机译:本研究报告了表面修饰的包含白介素2(rhIL-2)的聚乳酸丙交酯(PLGA)微粒的制备和理化特性,可用于肺部递送。用粘膜粘附聚合物如壳聚糖和Carbopol 971P修饰了微粒的表面。通过测量ζ电势证实了该表面改性的可行性。壳聚糖修饰的PLGA微粒显示正的Zeta电位,而Carbopol修饰的PLGA微粒带负电。粘蛋白的结合效率值表明,带负电荷的壳聚糖包被的微粒与带负电荷的未包被或Carbopol 971P包被的微粒相比,对粘蛋白的黏附百分比更高。此外,用壳聚糖和Carbopol 971P对微粒进行表面修饰后,最初释放的蛋白质量略有减少。这些发现表明,表面修饰的PLGA微粒适合作为将肽和蛋白质输送到呼吸道的有效载体系统。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号