2021 年 25 巻 3-4 号 p. 47-53
Ion-exchange, reconstruction, and coprecipitation approaches were used to examine the composite formation of layered double hydroxides (LDHs) and glycyrrhizic acid. The use of reconstruction and coprecipitation approaches successfully intercalated the glycyrrhizic acid dipotassium salt into the LDH interlayer space, which enhanced moisturization. Furthermore, the uptake of glycyrrhizic acid in the composite synthesized using the coprecipitation approach was higher than that of the composite by the reconstruction approach. Additionally, the moisture content of the coprecipitated composite to skin was found to be higher than that of the pristine glycyrrhizic acid dipotassium salt, thereby strongly demonstrating the advantages of using LDHs for the generation of composites with higher moisture content.
