KR20130029291A - 조직 재생 유도 구조물 - Google Patents
조직 재생 유도 구조물 Download PDFInfo
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- KR20130029291A KR20130029291A KR1020110092650A KR20110092650A KR20130029291A KR 20130029291 A KR20130029291 A KR 20130029291A KR 1020110092650 A KR1020110092650 A KR 1020110092650A KR 20110092650 A KR20110092650 A KR 20110092650A KR 20130029291 A KR20130029291 A KR 20130029291A
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- porous membrane
- tissue regeneration
- heparin
- regeneration
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- Materials For Medical Uses (AREA)
Abstract
본 발명에 따르면, 제조된 막의 양 표면의 기공 구조가 상이한 비대칭 구조를 가지는 다공성 막은 선택적 투과성 및 친수성을 나타내어, 골 및 신경의 재생을 방해하는 섬유결합조직의 결손부위로의 침투를 억제하나 이들의 재생에 필수적인 산소/영양액은 결손부위로 공급이 가능하므로, 골 및 신경의 재생에 좋은 환경을 제공한다. 뿐만 아니라, 골 및 신경의 재생을 보다 촉진시킬 수 있는 생리활성물질의 결손부위로의 지속적인 공급이 가능하므로 조직 재생 유도 구조물이 필수적으로 필요한 고도로 분화된 다양한 조직들(골, 신경, 인대/건 등)의 재생에 매우 효과적으로 사용될 수 있다.
Description
도 2는 비대칭 구조의 시트 형태 다공성 막을 이용한 비대칭 구조의 튜브 형태 다공성 막의 제조 과정을 나타낸 것이다.
도 3은 실시예 1~3에 따라 제조된 비대칭 구조의 시트 형태 다공성 막의 주사전자현미경 사진을 나타낸 것이다.
도 4는 실시예 4~6에 따라 제조된 비대칭 구조의 튜브 형태 다공성 막의 주사전자현미경 사진을 나타낸 것이다.
도 5는 실시예 1~3 및 비교예 1의 비대칭 구조의 시트 형태 다공성 막에 도입된 헤파린의 탑재량 측정 결과를 나타낸 것이다.
도 6은 실시예 4~6 및 비교예 2의 제조된 비대칭 구조의 튜브 형태 다공성 막에 도입된 헤파린의 탑재량 측정 결과를 나타낸 것이다.
도 7은 실시예 3과 비교예 3의 헤파린 도입 유무에 따른 생리활성물질 (BMP-2)의 도입량을 측정한 결과이다.
도 8은 실시예 6과 비교예 4의 헤파린 도입 유무에 따른 생리활성물질(NGF)의 도입량을 측정한 결과이다.
도 9는 실시예 3과 비교예 3의 생리활성물질(BMP-2)의 방출 특성 측정 결과이다.
도 10은 실시예 6과 비교예 4의 생리활성물질(NGF)의 방출 특성 측정 결과이다.
도 11은 실시예 3 및 대조군 1~2의 조직 재생 유도 구조물에서 생리활성물질(BMP-2) 도입 유무에 따른 골재생 효능 평가 결과이다 (동물실험; Masson's Trichrome staining).
도 12는 실시예 6 및 대조군 3의 조직 재생 유도 구조물에서 생리활성물질(NGF) 도입 유무에 따른 신경재생 효능 평가 결과이다 (동물실험; anti-neurofilament staining).
도 13은 실시예 6 및 대조군 3의 조직 재생 유도 구조물에서 생리활성물질(NGF) 도입 유무에 따른 신경재생 효능 평가 결과이다 (동물실험; TEM).
Claims (11)
- 비대칭 구조를 가지는 다공성 막, 헤파린 및 생리활성물질을 포함하는 조직 재생 유도 구조물.
- 제1항에 있어서,
상기 비대칭 구조를 가지는 다공성 막은 시트 형태 및 튜브 형태인 것을 특징으로 하는 조직 재생 유도 구조물.
- 제2항에 있어서,
상기 비대칭 구조를 가지는 다공성 막은 기공 크기가 서로 상이한 2층 이상의 층을 포함하는 것을 특징으로 하는 조직 재생 유도 구조물.
- 제2항에 있어서,
상기 비대칭 구조를 가지는 다공성 막은 생분해성 고분자와 친수성 고분자를 포함하는 것을 특징으로 하는 조직 재생 유도 구조물.
- 제4항에 있어서,
상기 생분해성 고분자는 폴리락틱산, 폴리글리콜산, 폴리락틱산-글리콜산 공중합체, 폴리다이옥산온, 폴리카프로락톤, 폴리락틱산-카프로락톤 공중합체, 폴리다이옥산온-카프로락톤 공중합체, 폴리하이드록시부티릭산-하이드록시발러릭산 공중합체 및 폴리포스포에스터로 이루어진 그룹으로부터 선택되는 1종 이상인 것을 특징으로 하는 조직 재생 유도 구조물.
- 제4항에 있어서,
상기 친수성 고분자는 폴리에틸렌옥사이드-폴리프로필렌옥사이드공중합체, 폴리에틸렌옥사이드-폴리락틱산 공중합체, 폴리에틸렌옥사이드-폴리락틱글리콜산 공중합체, 폴리에틸렌옥사이드-폴리카프로락톤 공중합체, 폴리에틸렌옥사이드, 폴리비닐알콜, 폴리옥시에틸렌 알킬 에테르류, 폴리옥시에틸렌 케스터 오일 유도체류, 폴리옥시에틸렌 소르비탄 지방산 에스터류 및 폴리옥시에틸렌 스테아레이트류로 이루어진 그룹으로부터 선택되는 1종 이상인 것을 특징으로 하는 조직 재생 유도 구조물.
- 제4항에 있어서,
상기 친수성 고분자는 상기 생분해성 고분자 100 중량부에 대하여 0.1 내지 20 중량부로 포함되는 것을 특징으로 하는 조직 재생 유도 구조물.
- 제2항에 있어서,
상기 튜브 형태의 다공성 막은 상기 비대칭 구조를 가지는 시트 형태의 다공성막을 튜브 형태로 권취시킨 것을 특징으로 하는 조직 재생 유도 구조물.
- 제1항에 있어서,
상기 헤파린은 상기 비대칭 구조를 가지는 다공성 막에 포함된 친수성 고분자의 에테르(-O-) 그룹과 상기 헤파린의 카르복실산(-COOH) 그룹 간의 수소 결합을 형성하여 포함되는 것을 특징으로 하는 조직 재생 유도 구조물.
- 제1항에 있어서,
상기 생리활성물질은 상기 헤파린의 카르복실산(-COOH) 그룹과 생리활성물질의 양이온 간의 이온 결합을 형성하여 포함되는 것을 특징으로 하는 조직 재생 유도 구조물.
- 제1항에 있어서,
상기 생리활성물질은 fibroblast growth factors(FGFs), vascular endothelial growth factor(VEGF), nerve growth factor(NGF), brain-derived neurotrophic factor(BDNF), transforming growth factors(TGFs), bone morphogenetic proteins(BMPs), epidermal growth factor(EGF), insulin-like growth factor(IGF), 및 platelet-derived growth factor(PDGF)로 이루어진 그룹으로부터 선택되는 1종 이상인 것을 특징으로 하는 조직 재생 유도 구조물.
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KR20150108956A (ko) * | 2014-03-18 | 2015-10-01 | 단국대학교 천안캠퍼스 산학협력단 | 다공성 고분자 입자, 이의 제조방법, 및 이를 이용한 조직공학용 생분해성 재료 |
KR101712861B1 (ko) * | 2015-08-28 | 2017-03-07 | 단국대학교 천안캠퍼스 산학협력단 | 다공성 고분자 미세 입자, 이의 제조방법, 및 이를 이용한 바이오 소재 |
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KR101016372B1 (ko) * | 2008-12-09 | 2011-02-21 | 이진호 | 선택적 투과성 및 골 점착성을 가지는 다공성 골유도재생막및 그 제조방법 |
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WO2016122080A3 (ko) * | 2015-01-29 | 2017-05-18 | 단국대학교 천안캠퍼스 산학협력단 | 다공성 고분자 재료, 이의 제조방법, 및 이를 이용한 바이오 소재 |
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