Stability of Nano-Emulsions Prepared by Solubilization Method

가용화법에 의해 제조된 나노에멀젼의 안정성

  • 이동렬 (LG 생활건강기술원 화장품연구소) ;
  • 조완구 (전주대학교 대체의학대학 기초의과학과)
  • Received : 2010.11.03
  • Accepted : 2010.12.13
  • Published : 2010.12.30

Abstract

In this study, we varied emulsifiers and oils for obtaining nano-emulsions with low viscosity using solubilization method. We obtained the stable nano-emulsions with 100 nm droplet size composed with hexyl laurate, ceteareth-20, PEG-40 hydrogenated caster oil, glyceryl stearate, and stearic acid. This nano-emulsion was stable against time. The stability of nano-emulsions was measured through the change of particle size. The cooling process was an important factor for obtaining stable emulsions by solubilization method. Stability of nano-emulions was maximum only when cooled rapidly.

본 연구에서는 가용화법을 이용하여 점도가 낮은 나노에멀젼을 얻기 위해서 계면활성제와 오일을 변화시켰다. 헥실라우레이트, 세테아레스-20, PEG-40 수첨 피마자유, 글리세릴스테아레이트 및 스테아린산을 함유하며 입자 크기가 100 nm 정도 되는 나노에멀젼을 제조할 수 있었다. 이렇게 제조된 에멀젼은 안정하였으며 안정성은 입자의 변화로 측정하였다. 가용화법으로 안정한 나노에멀젼을 얻기 위해서는 에멀젼을 제조한 후 냉각과정이 중요한 변수로 작용하였다. 냉각과정을 신속하게 진행하였을 때 최대의 안정성을 보였다.

Keywords

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