미백성분이 포함된 나노입자의 제조와 응용

Preparation and Application of Wnitening Ingredient Entrapped in Solid Lipid Nanoparticle [SLN]

  • 한성철 (전남대학교 물질 생물화학공학과) ;
  • 김연주 (광주보건대학 피부미용과 & 전남대학교 고분자공학) ;
  • 이기영 (전남대학교 응용화학공학부 & 전남대학교 촉매연구) ;
  • 김동운 (광양보건대학 보건위생과, (주) 나노바이오메드)
  • 발행 : 2004.06.01

초록

복합한방 재료인 옥용산에 대해 UV 흡수능, tyrosinase 저해활성 그리고 free radical 소거활성을 측정함으로서 미백활성을 검정하고 비교 시험군으로서 비타민C와 함께 Eudragit 이 코팅된 coconut oil을 이용한 SLN을 제조할 수 있었다. 실험 결과, 옥용산은 UV 영역에서 흡수능을 가지며 tyrosinase 저해 활성과 free radical 소거활성을 가진 것으로 확인되었다. 제조된 E-SLN을 TEM을 이용하여 관찰한 결과 크기 50∼300 nm인 구형의 양호한 입자를 형성하고 있음을 확인하였다. 또한 그 크기분포와 캡슐화 효율 분석을 통해 EUD의 농도가 2.0% (w/v), w/o 비율은 1 : 9, emulsion과 pour solution의 비율은 1 : 10, 그리고 실온에서 제조한 E-SLN의 캡슐화 효율이 가장 높고 크기의 분포가 가장 양호한 것을 알 수 있었다. E-SLN을 이용하여 in vitro 방출시험을 실시한 결과 E-SLN은 pH와 온도 의존적으로 약물을 방출하는 경향을 나타냈다. 결과적으로 제조된 E-SLN은 pH와 온도 의존적으로 약물을 전달할 필요가 있는 계에 대한 약물전달 시스템으로 적합할 것으로 보인다. 폐쇄 첩포시험과 자외선 조사에 의한 인공색소침착과 시료도포에 의한 미백효능 판정에 의한 임상시험 결과 옥용산과 비타민C, 그리고 이를 포함하는 E-SLN은 대조군의 경우와 비교하여 미백효과를 가지는 것으로 확인되었으며 이는 기능성화장품에의 응용 가능성을 높여주었다.

The aim of this study was to investigate the skin-whitening effect of okyong-san and to develop new drug delivery carrier The extracts of okyong-san were found to have the whitening effect and Eudragit$\^$ⓡ/ L 100-55 (EUD) coated solid lipid nanoparticle (E-SLN) was prepared by solvent evaporation method and melt dispersion technique. As a result, E-SLN have a 144-170 nm of particle size, spherical shape, and 33-41% encapsulation efficiency, After release test in vitro, release profile of E-SLN depended on pH and temperature. Lastly, closed patch test and skin-whitening test was peformed clinically. In conclusion, test sample had non-stimulation and high % whiteness. The results suggest that okyong-san and E-SLN is useful as cosmeceuticals for whitening cosmetics.

키워드

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