INIDS2-1587
Ceramide-Enhanced Piezoelectricity in Self-Assembled Multilayer Liquid-Crystalline Emulsions
Topic
IDS2. Frontiers in Cosmetic Science and Technology (Sponsored by COSMAX)
When and Where
Sep 29, 2026
15:50 - 16:15
Room 102
Session Chairs
Yoon-Ho HWANG
Presenter(s)
Byoung-Ki Cho (Dankook University)
Co-Author(s)
Abstract
In this study, piezoelectric liquid-crystalline (LC) emulsions were developed using ceramide as an organic piezoelectric enhancer. Ceramide and fatty alcohols were co-assembled in water to form stable multilayer LC structures, and their structural, rheological, and piezoelectric properties were investigated. Fatty alcohols promoted the formation of multilayer LC architectures, providing a structural framework for ceramide incorporation. At a fixed fatty alcohol content of 4 wt%, the piezoelectric response increased with ceramide concentration up to 3 wt%, whereas excessive ceramide caused aggregation. At a fixed ceramide content of 3 wt%, increasing the fatty alcohol content improved both the cream-like rheological properties and piezoelectric output by stabilizing ceramide within the multilayer structure. The enhanced piezoelectricity was attributed to the high dipole moment of ceramide and collective dipole organization within the deformable LC architecture. The optimized formulation also improved dermal density and skin elasticity in a clinical evaluation. These results demonstrate the potential of ceramide-based piezoelectric LC emulsions as self-powered materials for skin-functional cosmetic applications.
