Preparation of Silica Microcapsules containing Water-Soluble UV Absorbers by a W/O Microemulsion Sol-Gel Process

W/O 마이크로에멀젼 졸-겔 법을 이용한 수용성 UV 흡수제를 함유한 실리카 마이크로캡슐의 제조

The microencapsulation of droplets or particles within a solid shell leads to the formation of core-shell particles. Microencapsulation provides protection and controlled release of core materials such as drugs, vitamins, enzymes, perfumes, and the like. Such particles have, therefore, found a diverse range of applications in the pharmaceutical, agricultural, cosmetic, and food industries. UV absorbers are widely used for cosmetics to screen out ultra violet (UV) rays which have side effects on human skin. The absorbers are made generally from synthetic organic compounds, which can stimulate the human skins to develop allergic phenomena.