Enhancement of the Adsorbed Amount of Ferulic Acid on Mesoporous Silica for Use as an Ultraviolet Radiation Absorber in Cosmetics

Abstract

Compositing organic materials, such as plant pigments with inorganic carriers, can increase the dispersion, stability, and leaching resistance of pigments into solvents. Layered clay minerals are commonly used as inorganic carriers 1,2) . Conversely, mesoporous silica, porous silica with uniform nano-sized pores, has a pore size close to the molecular size of plant pigments and a high surface area (>1,000 m 2 /g).