用PEG脂肪酸甘化物配制的微乳液的制备和表征
Yifei Wang1, Kangfu Zhou2, Chuanjun Ye3
1Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China.
Colloids and surfaces. B, Biointerfaces
|May 31, 2025
概括
这项研究使用聚乙烯甘醇 (PEG) 脂肪酸甘化物开发了稳定的微乳液,表明它们增强了活性成分的通过皮肤吸收. 这些非离子微乳液为实际应用提供广泛的pH值和温度稳定性.
科学领域:
- 合体和表面科学科学
- 材料科学 材料科学 材料科学
- 制药科学 制药科学
背景情况:
- 微乳液是热力学稳定的,纳米系统增强活性成分的输送和生物可用性.
- 聚乙烯甘醇 (PEG) 脂肪酸甘化物在微乳液配方中具有作为表面活性剂的潜力.
- 了解影响微乳液形成的因素对于优化药物输送系统至关重要.
研究的目的:
- 使用PEG脂肪酸甘化物制备和表征微乳液.
- 为了研究油性质,表面活性剂两性,共同表面活性剂,混合比率,温度,pH值和离子强度对微乳液相位行为的影响.
- 评估这些微乳液的通过皮肤传递潜力.
主要方法:
- 使用PEG脂肪酸甘化物制备微乳液.
- 伪三次相图的构建和分析.
- 使用传输电子显微镜 (TEM) 进行微乳液微结构的表征.
- 评估尼古丁胺胺在微乳液中的通过皮肤的行为,与传统乳液相比.
主要成果:
- 较低极性的油和较高的水性-脂性平衡 (HLB) 表面活性剂有利于微乳液的形成.
- 较短的链,较少的氧化辅表面活性剂 (酒精) 促进了微乳液的稳定性.
- 确定了2:1的最佳主/辅助表面活性剂混合比率 (Km).
- 微乳液在广泛的pH (4-9) 和温度范围内表现出极好的稳定性,耐低盐度.
- TEM证实了油在水,油在水和双连续微乳液结构的存在.
- 与传统乳液相比,尼古丁胺在PEG脂肪酸甘油微乳液中表现出增强的皮肤透射性质.
结论:
- PEG脂肪酸甘化物是有效的表面活性剂,用于制备具有可调节性质的稳定微乳液.
- 微乳液形成受到油极性,表面活性剂HLB,共同表面活性剂特性和系统条件的显著影响.
- PEG脂肪酸甘的非离子性质赋予了广泛的pH和温度稳定性,适合各种应用.
- 这些微乳液有望改善活性成分的通过皮肤传递,与传统乳液相比具有优势.
相关概念视频
Esters to Carboxylic Acids: Saponification
7.3K
Esters can be hydrolyzed to carboxylic acids under acidic or basic conditions. Base-promoted hydrolysis of esters is a nucleophilic acyl substitution reaction in which esters react with an aqueous base, followed by an acid to give carboxylic acids. This reaction is also known as saponification because it forms the basis for making soaps from fats.
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...
7.3K
Micelles
269
Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...
269


