Kudłacik-Kramarczyk Sonia, Drabczyk Anna, Przybyłowicz Alicja, Kieres Weronika, Krzan Marcel
Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, 8 Niezapominajek St., 30-239 Krakow, Poland.
CBRTP SA-Research and Development Center of Technology for Industry, Ludwika Waryńskiego 3A St., 00-645 Warsaw, Poland.
Int J Mol Sci. 2024 Nov 25;25(23):12632. doi: 10.3390/ijms252312632.
Oleogels are structured materials formed by immobilizing oil within a polymer network. This study aimed to synthesize bilayer foamed oleogels using Ecogel™ as an emulsifier-a natural gelling and emulsifying agent commonly used to stabilize emulsions. Ecogel™ is multifunctional, particularly in cosmetic formulations, where it aids in creating lightweight cream gels with a cooling effect. However, the specific goal of this study was to investigate the physicochemical properties of oleogels formed with Ecogel™, Tween 80, gelatin, and glycerin. The combination of these ingredients has not been studied before, particularly in the context of bilayer foamed oleogels. The biphasic nature of the resulting materials was explored, consisting of a uniform lower phase and a foamed upper layer. Several analytical techniques were employed, including FT-IR spectrophotometric analysis, moisture content evaluation, surface wettability measurements, microscopic imaging, and rheological studies, in addition to surface energy determination. The results demonstrated that the addition of Tween 80 significantly improved the stability and rigidity of the oleogels. Furthermore, storage at reduced temperatures after synthesis enhanced the material's stabilizing properties. These materials also showed an affinity for interacting with non-polar compounds, indicating potential applications in skincare, especially for interaction with skin lipids.
油凝胶是通过将油固定在聚合物网络中形成的结构化材料。本研究旨在使用Ecogel™作为乳化剂合成双层泡沫油凝胶，Ecogel™是一种天然的胶凝和乳化剂，常用于稳定乳液。Ecogel™具有多种功能，特别是在化妆品配方中，它有助于制造具有清凉效果的轻质乳霜凝胶。然而，本研究的具体目标是研究由Ecogel™、吐温80、明胶和甘油形成的油凝胶的物理化学性质。这些成分的组合以前尚未被研究过，特别是在双层泡沫油凝胶的背景下。研究了所得材料的双相性质，包括均匀的下层和泡沫上层。除了表面能测定外，还采用了几种分析技术，包括傅里叶变换红外光谱分析、水分含量评估、表面润湿性测量、显微镜成像和流变学研究。结果表明，添加吐温80显著提高了油凝胶的稳定性和刚性。此外，合成后在低温下储存增强了材料的稳定性能。这些材料还显示出与非极性化合物相互作用的亲和力，表明在护肤品中有潜在应用，特别是与皮肤脂质的相互作用。
