干燥纳米乳液配方的制备方法 通过电制备干燥纳米乳液配方
Josip Ljubica1, Črt Dragar2, Tanja Potrč2
1University of Zagreb Faculty of Pharmacy and Biochemistry, Ante Kovačića 1, 10000 Zagreb, Croatia.
概括
电将液态纳米乳液转化为固体纳米纤维,用于治疗干眼疾病. 这种新的方法增强了眼睛表面的药物保留,提供了一个有前途的新疗法策略.
科学领域:
- 眼科医生 眼科 眼科
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
背景情况:
- 干眼疾病涉及膜不稳定性.
- 目前的纳米乳液处理方法限制了眼睛表面的保留.
- 开发稳定,长效的眼部药物输送系统至关重要.
研究的目的:
- 使用电旋转,开发出一种固体的眼科制剂.
- 在纳米乳液中加载 loteprednol 和 etabonate 抗炎药物.
- 为了改善干眼疾病的眼表面药物保留.
主要方法:
- 使用水友性聚合物 (聚乙烯氧化物,Poloxamer 188,Soluplus®) 的油在水纳米乳液的电.
- 将洛特普雷德诺乙酸盐纳入纳米乳液中,其油与表面活性剂的比例各不相同.
- 使用3D HCE-T模型进行纳米纤维分散,滴滴大小,质性质和生物相容性的表征.
主要成果:
- 干燥的纳米乳液形成了迅速分散的纳米纤维.
- 纳米纤维分散产生了纳米尺寸的水滴,与最初的纳米乳液相比.
- 分散的纳米纤维表现出弹性行为,在眼睛表面形成一个微弱的凝.
- 在人类角膜表皮模型中证实了生物相容性.
结论:
- 电旋成功地从纳米乳液中制造出一种固体,迅速分散的眼睛制剂.
- 由此产生的纳米纤维增强了眼睛表面的保留和药物输送.
- 这种创新的固体纳米乳液配方显示出治疗干眼疾病的潜力.
相关概念视频
Preparation of Samples for Electron Microscopy
6.5K
To be visualized by an electron microscope, either transmission or scanning, biological samples need to be fixed (stabilized) so the electron beam does not destroy them and dried thoroughly (desiccated/dehydrated) so the vacuum does not affect them. Fixation needs to be done as quickly as possible because the sample properties will start changing as soon as it is removed from its natural environment. For example, in a tissue sample, the oxygen levels begin decreasing, causing an altered...
6.5K
Colloidal precipitates
5.7K
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
5.7K


