作为医疗器械水凝配方成分的Eudragit®的作用
David Esporrín-Ubieto1, Ana Sofía Sonzogni2, Mercedes Fernández3
1POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain. marcelo.calderon@polymat.eu.
Journal of materials chemistry. B
|September 20, 2023
概括
这项研究探讨了Eudragits®如何影响药物输送的水凝特性. 这些发现指导了先进的水凝的设计,用于持续的蛋白质释放和在眼睛应用中增强粘膜粘合.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 药物输送系统 药物输送系统
背景情况:
- 由于其生物相容性和可调性特性,水凝是有前途的医疗器械.
- 物理交叉连接确保了可逆性,并促进了与粘液等生物障碍物的相互作用.
- 优化水凝成分对于有效的药物输送至关重要,特别是对于眼部应用.
研究的目的:
- 为了研究各种Eudragits®对聚乙烯 (PVP),聚乙烯醇 (PVA) 和聚乙烯糖醇 (PEG) 基水凝的影响.
- 评估Eudragit®的结合如何影响水凝结构,蛋白质封装和眼部输送能力.
- 制定选择Eudragits®的指导方针,以实现眼科药物输送所需的水凝特性.
主要方法:
- 使用PVP,PVA,PEG和不同的Eudragits®制备水凝.
- 描述水凝特性,包括矩阵稳定性,蛋白质封装效率和释放动力学.
- 对眼部应用的粘粘度,生物相容性和结构完整性的评估.
主要成果:
- 尤德拉吉特®的选择显著改变了水凝矩阵的稳定性,粘膜粘合和蛋白质释放概况.
- 特定的Eudragit®配方表现出增强的生物相容性和结构强度,适合眼睛环境.
- 优化的水凝促进了持续的蛋白质释放,表明长期治疗效果的潜力.
结论:
- 欧德拉吉特在量身定制水凝性能,用于眼科药物输送方面发挥着至关重要的作用.
- 该研究为设计含有Eudragit®的水凝提供了一个框架,以改善眼睛粘附和持续释放.
- 这些发现推动了基于水凝的新型医疗器械的开发,用于粘膜药物输送.
相关概念视频
Factors Influencing Drug Absorption: Pharmaceutical Parameters
Solid dosage forms such as tablets and capsules undergo rigorous manufacturing processes to ensure stability and effectiveness. Their dissolution and absorption properties are influenced significantly by the choice of excipients (inactive ingredients that serve various roles in the formulation), and the methodology applied during production. The manufacturing parameters, such as compression force and granulation techniques, significantly affect dissolution rates. Elevated compression forces...
Plasticizers
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...


