Development of Topical/Transdermal Drug Delivery Based on Structure Analysis of Stratum Corneum
皮膚角層微細構造解析と製剤開発への応用

Yasuko OBATA, Noboru OHTA, Naoto YAGI, Yoshinori ONUKI, Kozo TAKAYAMA
2014 Hyomen Kagaku  
Lipid lamellar structure in intercellular space of stratum corneum is recognized as main physical barriers against dehydration and invasion of foreign substances. For development of effective transdermal drug delivery, it is necessary to decrease those barriers temporally and reversibly. Co-administration of components which has drug absorption enhancing effect is one of the essential methodologies to increase absorption of drugs via skin. The change in lipid lamellar structure was determined
more » ... synchrotron X-ray diffraction. When the stratum corneum was pretreated by lmenthol, lipid lateral packing became liquid crystal. It was considered that disorder of lamellar structure brought about increasing in drug permeation. It means that the lipid lamellar structure is one of the key parameters to evaluate physical barrier function of the skin. The structure analysis of lipid lamellar employing synchrotron X-ray diffraction is thought to be a meaningful technique possibly applied for promoting mechanism of transdermal absorption enhancer and evaluation of barrier function of skin.
doi:10.1380/jsssj.35.34 fatcat:xks7g6q35jgkzd4kstno3jvaym