KR20190071453A - 풀루란을 이용한 하이드로젤 지혈제 및 그 제조방법 - Google Patents
풀루란을 이용한 하이드로젤 지혈제 및 그 제조방법 Download PDFInfo
- Publication number
- KR20190071453A KR20190071453A KR1020170172514A KR20170172514A KR20190071453A KR 20190071453 A KR20190071453 A KR 20190071453A KR 1020170172514 A KR1020170172514 A KR 1020170172514A KR 20170172514 A KR20170172514 A KR 20170172514A KR 20190071453 A KR20190071453 A KR 20190071453A
- Authority
- KR
- South Korea
- Prior art keywords
- pullulan
- hydrogel
- weight
- hemostatic agent
- tyramine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Abstract
Description
도 2는 카르복실기가 도입된 풀루란에 티라민을 도입하기 위한 EDC 반응 공정을 나타내는 도면이다.
도 3은 하이드로젤의 제조 과정을 나타내는 도면이다.
도 4는 풀루란 및 개질 풀루란의 ATR-FTIR 스펙트럼을 보여주는 도면이다.
도 5는 풀루란 및 개질 풀루란의 13C-NMR 스펙트럼을 보여주는 도면이다.
도 6은 개질된 풀루란의 1H-NMR 스펙트럼을 보여준다.
도 7은 풀루란 및 개질 풀루란의 GPC 데이터를 보여준다.
도 8은 풀루란 농도에 따른 젤화시간을 나타내는 도면이다.
도 9는 풀루란 농도에 따른 하이드로젤의 유변학적 특성을 레오미터를 통해 나타낸 도면이다.
도 10은 풀루란 농도에 따른 swelling ratio를 통해 crosslinking density 정도를 나타내는 도면이다.
도 11은 풀루란의 농도에 따른 in vitro 생분해성 평가를 나타내는 도면이다.
도 12는 풀루란 하이드로젤을 이용한 적혈구 용혈 실험을 나타내는 도면이다.
도 13은 SD rat을 이용한 지혈동물실험을 나타내는 도면이다.
도 14는 SD rat을 이용한 지혈동물실험의 풀루란 농도별 결과를 나타내는 사진이다.
도 15은 SD rat을 이용한 풀루란 농도별 결과에서 출혈양을 그래프로 나타낸 사진이다.
도 16는 SD rat을 이용한 풀루란 농도별 결과에서 출혈시간을 그래프로 나타낸 도면이다.
도 17는 풀루란 하이드로젤로 처리된 간의 지혈부위를 H&E staining을 통해 조직학적 관찰한 결과이다.
도 18는 풀루란 하이드로젤로 처리된 간의 지혈부위를 carstairs staining을 통해 조직학적 관찰한 결과이다.
Claims (12)
- (a) 2,2,6,6-테트라메틸-1-피페리디닐옥시, 자유 라디칼 (TEMPO), 소듐 브로마이드 (NaBr) 및 소듐 하이포클로라이드 용액을 사용하여 풀루란에 카르복실기를 도입하는 단계;
(b) 상기 (a)단계에서 얻어진 카르복실기가 도입된 풀루란에 티라민, N-하이드록시석신이미드(NHS) 및 1-에틸-3-(3-다이메틸아미노프로필)-카르보다이이미드(EDC)를 이용하여 티라민을 도입하는 단계; 및
(c) 상기 (b)단계에서 얻어진 티라민 치환된 풀루란에 서양고추냉이 과산화효소(HRP), 과산화수소수(H202), 트롬빈 및 염화칼슘(CaCl2)을 넣고 반응시켜 하이드로젤을 제조하는 단계를 포함하는 것을 특징으로 하는 풀루란을 이용한 하이드로젤 지혈제의 제조방법.
- 제1항에 있어서,
상기 (a)단계에서 상기 풀루란은 중량평균분자량이 50,000 내지 250,000 g/mol이고, 하이드로젤 지혈제의 전체 조성물 100 중량부에 대하여 1 내지 50 중량부로 포함하는 것을 특징으로 하는 풀루란을 이용한 하이드로젤 지혈제의 제조방법.
- 제1항에 있어서,
상기 (b)단계에서 티라민의 치환율은 1 내지 15%인 것을 특징으로 하는 풀루란을 이용한 하이드로젤 지혈제의 제조방법.
- 제1항에 있어서,
상기 (c)단계에서 상기 HRP의 농도는 전체 조성물 100 중량부에 대하여 0.1 내지 5 중량부로 포함하는 것을 특징으로 하는 풀루란을 이용한 하이드로젤 지혈제의 제조방법.
- 제1항에 있어서,
상기 (c)단계에서 상기 과산화수소수(H202)의 농도는 전체 조성물 100 중량부에 대하여 1 내지 30 중량부로 포함하는 것을 특징으로 하는 풀루란을 이용한 하이드로젤 지혈제의 제조방법.
- 제1항에 있어서,
상기 (c)단계는 티라민 치환된 풀루란, HRP, 트롬빈 및 염화칼슘을 실온에서 20분 내지 1시간 동안 pH6 내지 8의 PBS에 용해시켜 1차 용액을 제조하는 단계; 및
상기 1차 용액에 30% 과산화수소수(H202)인 2차 용액을 첨가하여 5초 내지 2분 동안 반응시켜서 하이드로젤을 제조하는 단계를 포함하는 것을 특징으로 하는 풀루란을 이용한 하이드로젤 지혈제의 제조방법.
- 제6항에 있어서,
상기 트롬빈은 PBS 1 mL 당 100 내지 500 μg으로 포함하고, 상기 염화칼슘은 PBS 1 mL 당 3 내지 15 mM로 포함하는 것을 특징으로 하는 풀루란을 이용한 하이드로젤 지혈제의 제조방법.
- 제1항에 있어서,
상기 (c)단계에서 젤라틴, 키토산, 히알루론산, 알지네이트 및 셀룰로오스 유도체 중에서 선택된 1종 이상의 성분을 더 포함하는 것을 특징으로 하는 풀루란을 이용한 하이드로젤 지혈제의 제조방법.
- 제1항에 있어서,
상기 (c)단계에서 지혈물질로 피브리노겐, 비타민 C, 비타민 K, 콜라겐, 젤라틴 및 미세젤폼(gelfoam) 중에서 선택된 1종 이상을 더 포함하는 것을 특징으로 하는 풀루란을 이용한 하이드로젤 지혈제의 제조방법.
- 제1항 내지 제9항 중 어느 한 항에 따라 제조된 풀루란을 이용한 하이드로젤 지혈제.
- 제10항에 있어서,
상기 하이드로젤 지혈제는 실온에서 점도가 10,000 내지 25,000 cP인 것을 특징으로 하는 풀루란을 이용한 하이드로젤 지혈제.
- 제10항에 있어서,
상기 하이드로젤 지혈제는 접착 강도가 10 내지 30 kPa인 것을 특징으로 하는 풀루란을 이용한 하이드로젤 지혈제.
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KR20150020536A (ko) * | 2012-05-14 | 2015-02-26 | 데이진 가부시키가이샤 | 시트 성형체 및 지혈재 |
KR101624625B1 (ko) | 2012-12-28 | 2016-05-26 | 주식회사 삼양바이오팜 | 개선된 흡수성 지혈제 및 그 제조방법 |
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KR20210025918A (ko) * | 2019-08-28 | 2021-03-10 | 금오공과대학교 산학협력단 | 개선된 하이드로젤 지혈제 제조방법 및 그에 따른 지혈제 |
CN118812739A (zh) * | 2024-09-11 | 2024-10-22 | 山东第二医科大学 | 一种季铵化普鲁兰多糖的制备方法及其在制备止血产品中的应用 |
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