Orlova Polina, Meshkov Ivan, Latipov Egor, Vasiliev Sergey, Mikheev Ivan, Ratova Daria-Maria, Kalinina Alexandra, Muzafarov Aziz, Le-Deygen Irina
Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia.
Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences (ISPM RAS), Moscow 117393, Russia.
Gels. 2024 Aug 30;10(9):564. doi: 10.3390/gels10090564.
Anemia is a global health problem that affects both adults and children, but treatment is hampered by serious side effects, primarily associated with the gastrointestinal tract with oral administration of drugs. In this study, we aimed to develop an oral form of iron compounds using polymethylsilsesquioxane hydrogels. To boost loading efficiency and prolong release, the iron compounds (FeCl and ferrous D-Gluconate) are incorporated into a guest-host complex with 2-hydroxypropyl-beta-cyclodextrin. We used PRXD, SEM, EDX mapping, and FTIR to investigate the complex formation, as well as the incorporation of such complexes into hydrogels. The optimal system underlines a combination of ferrous D-Gluconate and HPCD in a 1:1 molar ratio, embedded into a hydrogel with a modest quantity of silicate crosslinks. We demonstrated the slowing of iron release in a gastric media. Mathematical investigation revealed that the Higuchi mechanism releases iron from the hydrogel.
贫血是一个影响成人和儿童的全球性健康问题,但治疗受到严重副作用的阻碍,主要与口服药物时胃肠道相关。在本研究中,我们旨在使用聚甲基倍半硅氧烷水凝胶开发一种铁化合物的口服剂型。为提高负载效率并延长释放时间,将铁化合物(氯化铁和葡萄糖酸亚铁)与2-羟丙基-β-环糊精形成客体-主体复合物。我们使用粉末X射线衍射(PRXD)、扫描电子显微镜(SEM)、能量色散X射线光谱映射(EDX mapping)和傅里叶变换红外光谱(FTIR)来研究复合物的形成,以及此类复合物掺入水凝胶的情况。最佳体系强调葡萄糖酸亚铁和羟丙基-β-环糊精以1:1摩尔比组合,嵌入具有适量硅酸盐交联的水凝胶中。我们证明了在胃介质中铁释放的减缓。数学研究表明,铁从水凝胶中以 Higuchi 机制释放。