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Conformational transition of regenerated Antheraea pernyi silk fibroin sponge treated with aqueous ethanol solution and in vitro wound healing effect of wild silk fibroin solution

작잠 실크 피브로인에 의한 in vitro 상처 회복 효과 및 에탄올 처리에 따른 작잠 실크 피브로인 스폰지의 구조 전이

  • Lee, Kwang-Gill (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Jo, You-Young (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Yeo, Joo-Hong (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Lee, Heui-Sam (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Kee-Young (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Hyun-Bok (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Kim, An-Sook (Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung Wonju National University) ;
  • Kim, Seong-Gon (Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung Wonju National University) ;
  • Kweon, HaeYong (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA)
  • 이광길 (농촌진흥청 국립농업과학원 잠사양봉소재과) ;
  • 조유영 (농촌진흥청 국립농업과학원 잠사양봉소재과) ;
  • 여주홍 (농촌진흥청 국립농업과학원 잠사양봉소재과) ;
  • 이희삼 (농촌진흥청 국립농업과학원 잠사양봉소재과) ;
  • 김기영 (농촌진흥청 국립농업과학원 잠사양봉소재과) ;
  • 김현복 (농촌진흥청 국립농업과학원 잠사양봉소재과) ;
  • 김안숙 (강릉원주대학교 치과대학) ;
  • 김성곤 (강릉원주대학교 치과대학) ;
  • 권해용 (농촌진흥청 국립농업과학원 잠사양봉소재과)
  • Received : 2014.03.31
  • Accepted : 2014.05.19
  • Published : 2014.04.30

Abstract

Regenerated Antheraea pernyi silk sponge was prepared using calcium nitrate 4 hydrate melt and examined the conformational changes treated with aqueous ethanol solution. The conformation of silk sponges was changed from random coil structure to ${\beta}$-sheet and ${\alpha}$-helix conformation with low ethanol concentration (50 ~ 70%). On the other hand, that of silk sponges with 80% ethanol treatment showed ${\beta}$-sheet ($700cm^{-1}$), ${\alpha}$-helix ($625cm^{-1}$), and random coil ($660cm^{-1}$) specific peaks. Wound healing effect in vitro was observed by cytoslective wound healing kit. Therefore, regenerated Antheraea pernyi silk sponges might be used as promising wound dressing materials.

작잠 누에고치를 정련한 후 질산칼슘4수화물의 용융액을 사용하여 재생 작잠 실크피브로인 스펀지를 제조하였다. 작잠 실크피브로인은 280 nm에서 tyrosine 잔기 등에 기인한 흡광대를 나타내었다. 작잠 실크피브로인 스펀지를 에탄올 농도별로 처리한 후 구조 전이를 관찰한 결과 80% 에탄올 처리시에는 ${\beta}$-sheet 구조($700cm^{-1}$), ${\alpha}$-helix 구조($625cm^{-1}$), 그리고 random coil ($660cm^{-1}$) 구조가 공존하는 것으로 나타났다. 또한 작잠 실크피브로인을 이용한 in vitro 상처회복실험 결과 실크피브로인의 첨가에 의하여 상처회복 효과가 인정되었다.

Keywords

References

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