KR20120087732A - 암 조직으로의 전달 비율이 높은 바이오-이미지용 나노입자 - Google Patents
암 조직으로의 전달 비율이 높은 바이오-이미지용 나노입자 Download PDFInfo
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Abstract
Description
도 2는 실시예 1에서 제조된 조영제 나노입자의 수력학적 크기 분포를 나타낸 그래프이다.
도 3은 실시예 1에서 제조된 조영제 나노입자의 TEM 이미지이다.
도 4는 실시예 2에서 제조된 조영제 나노입자의 TEM 이미지이다.
도 5는 실시예 1 및 2에서 제조된 조영제를 사용하여 암동물 모델로부터 얻은 MRI 이미지이다.
도 6은 실시예 1 및 2에서 제조된 조영제를 사용하여 암동물 모델로부터 얻은 바이오 분포를 나타낸 그래프이다.
도 7은 다양한 중심 나노입자의 일 예로서의 초상자성 클러스터-나노입자-기공체 복합 비드의 모식도이다.
2 : 기공체 비드
2-1 : 중심 기공체 비드
2-2 : 기공체층
3 : 나노입자
S : 동심구
10 : 중심 나노입자의 코어
12 : 중심 나노입자의 쉘
14 : 계면활성제
16 : 지방산 에스테르의 분지형 폴리옥시알키렌 유도체
18 : 기능성 분자
20 : 유기 리간드
Claims (22)
- 중심 나노입자;
유기 리간드, 계면활성제 및 지방산 에스테르의 폴리옥시알키렌 유도체를 포함하고, 상기 중심 나노입자를 감싸는 결합층; 및
기능성 분자를 포함하고,
상기 유기 리간드는 상기 중심 나노입자의 표면에 결합되어 있고,
상기 계면활성제는 상기 중심 나노입자의 표면 중 상기 유기 리간드가 결합되지 않은 부분에 결합되어 있으며,
상기 지방산 에스테르의 폴리옥시알키렌 유도체는 상기 결합층 중 유기 리간드 및 상기 계면활성제 외의 빈 공간을 채우는 것이고,
상기 기능성 분자는 상기 유기 리간드의 양 말단 중 상기 중심 나노입자의 쉘과 결합된 제1 말단의 반대편 제2 말단에 결합되어 있는 바이오-이미지용 나노입자. - 제1항에 있어서, 상기 중심 나노 입자는 코어 및 쉘로 이루어진 것이고, 코어는 산화철이고, 상기 쉘은 철로 이루어진 것인 바이오-이미지용 나노입자.
- 제1항에 있어서, 상기 유기 리간드는,
탄소수 8 내지 20개의 탄화수소 사슬을 갖는 유기 리간드가 1 내지 30개가 연결된 것이고,
상기 제1 말단은 티올기이고, 상기 티올기가 상기 중심 나노입자와 금속-티올레이트 결합한 것이고,
상기 제2 말단은 친수성기인 것인 바이오-이미지용 나노입자. - 제1항에 있어서, 상기 지방산 에스테르의 폴리옥시알키렌 유도체는, 분지형 (branched)이고, 상기 지방산은 탄소 원자를 포함하고, 상기 탄소 원자의 수가 상기 유기 리간드의 탄소 원자 수와 같거나, 그 차이가 1 내지 3인 것인 바이오-이미지용 나노입자.
- 제1항에 있어서, 상기 지방산 에스테르의 폴리옥시알키렌 유도체는, Tween 20, Tween 40, Tween 60 또는 Tween 80인 것인 바이오-이미지용 나노입자.
- 제1항에 있어서, 상기 기능성 분자는 생체친화성 분자, 표적지향성 분자 또는 이들의 결합체 또는 혼합물인 것인 바이오-이미지용 나노입자.
- 제1항에 있어서, 상기 계면활성제, 상기 유기 리간드 및 상기 지방산 에스테르의 폴리옥시알키렌 유도체를 포함하는 결합층이 상기 중심 나노입자의 외면을 감싸고, 상기 기능성 분자는 상기 결합층의 외부로 돌출되어 있는 것인 바이오-이미지용 나노입자.
- 제1항에 있어서, 유기 리간드와 상기 기능성 분자는 아마이드 결합 또는 에스터 결합에 의하여 결합되어 있는 것인 바이오-이미지용 나노입자.
- 제1항에 있어서, 상기 유기 리간드 및 상기 계면활성제와 지방산 에스테르의 폴리옥시알키렌 유도체는 반데르발스 힘에 의하여 결합되어 있는 것인 바이오-이미지용 나노입자.
- 제1항에 있어서, 소수성 상기 중심 나노입자와 상기 친수성기를 갖는 유기 리간드를 포함하여 부분적으로 친수성인 바이오-이미지용 나노입자.
- 제1항에 있어서, 상기 바이오-이미지용 나노입자의 수력학적 크기 (hydrodynamic size)는 10 ㎚ 이하인 것인 바이오-이미지용 나노입자.
- (a) 그 외면이 계면활성제로 코팅된 중심 나노입자를 제조하는 단계;
(b) 상기 계면활성제의 일부를 유기 리간드로 치환하여 상기 유기 리간드가 상기 중심 나노입자의 표면에 결합하도록 하는 단계;
(c) 상기 유기 리간드의 양 말단 중 상기 중심 나노입자의 표면에 결합한 제1 말단의 반대편 제2 말단에 기능성 분자를 결합시키는 단계; 및
(d) 상기 유기 리간드 및 계면활성제 사이에 지방산 에스테르의 폴리옥시알키렌 유도체를 삽입하는 단계;
를 포함하는 바이오-이미지용 나노입자의 제조방법. - 제12항에 있어서, 단계 (b)는,
양 말단에 티올기와 친수성기를 갖고, 상기 티올기와 친수성기는 탄소수 8 내지 20개의 탄화수소 사슬로 연결되어 있는 유기 리간드를 1 내지 30 당량 첨가하여, 상기 중심 나노입자와 상기 티올기를 갖는 상기 유기 리간드의 제1 말단을 금속-티올레이트 결합시키는 것인 바이오-이미지용 나노입자의 제조방법. - 제12항에 있어서, 상기 중심 나노 입자는 코어 및 쉘로 이루어진 것이고, 코어는 산화철이고, 상기 쉘은 철로 이루어진 것인 바이오-이미지용 나노입자의 제조방법.
- 제12항에 있어서, 상기 지방산 에스테르의 폴리옥시알키렌 유도체는, 분지형 (branched)이고, 상기 지방산은 탄소 원자를 포함하고, 상기 탄소 원자의 수가 상기 유기 리간드의 탄소 원자 수와 같거나, 그 차이가 1 내지 3인 것인 바이오-이미지용 나노입자의 제조방법.
- 제12항에 있어서, 상기 지방산 에스테르의 폴리옥시알키렌 유도체는, Tween 20, Tween 40, Tween 60 또는 Tween 80인 것인 바이오-이미지용 나노입자의 제조방법.
- 제12항에 있어서, 상기 기능성 분자는 생체친화성 분자, 표적지향성 분자 또는 이들의 결합체 또는 혼합물인 것인 바이오-이미지용 나노입자의 제조방법.
- 제12항에 있어서, 상기 계면활성제, 상기 유기 리간드 및 상기 지방산 에스테르의 폴리옥시알키렌 유도체를 포함하는 결합층이 상기 중심 나노입자의 외면을 감싸고, 상기 기능성 분자는 상기 결합층의 외부로 돌출되어 있도록 하는 것인 바이오-이미지용 나노입자의 제조방법.
- 제12항에 있어서, 유기 리간드와 상기 기능성 분자는 아마이드 결합 또는 에스터 결합에 의하여 결합되도록 하는 것인 바이오-이미지용 나노입자의 제조방법.
- 제12항에 있어서, 상기 유기 리간드 및 상기 계면활성제와 지방산 에스테르의 폴리옥시알키렌 유도체는 반데르발스 힘에 의하여 결합되도록 하는 것인 바이오-이미지용 나노입자의 제조방법.
- 제12항에 있어서, 소수성 상기 중심 나노입자와 상기 친수성기를 갖는 유기 리간드를 포함하여 부분적으로 친수성을 갖도록 하는 것인 바이오-이미지용 나노입자의 제조방법.
- 제12항에 있어서, 상기 바이오-이미지용 나노입자의 수력학적 크기 (hydrodynamic size)는 10 ㎚ 이하가 되도록 하는 것인 바이오-이미지용 나노입자의 제조방법.
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| KR1020110009110A KR101263732B1 (ko) | 2011-01-28 | 2011-01-28 | 암 조직으로의 전달 비율이 높은 바이오-이미지용 나노입자 |
| US13/359,870 US20120195835A1 (en) | 2011-01-28 | 2012-01-27 | Tumor tissue-selective bio-imaging nanoparticles |
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| KR1020110009110A KR101263732B1 (ko) | 2011-01-28 | 2011-01-28 | 암 조직으로의 전달 비율이 높은 바이오-이미지용 나노입자 |
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| KR20120087732A true KR20120087732A (ko) | 2012-08-07 |
| KR101263732B1 KR101263732B1 (ko) | 2013-05-14 |
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| KR (1) | KR101263732B1 (ko) |
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| WO2014046807A1 (en) * | 2012-09-20 | 2014-03-27 | Board Of Regents, The University Of Texas System | Hydrophobic shielding for enhanced nanoparticle stability |
| JP6471227B2 (ja) * | 2014-09-15 | 2019-02-13 | マサチューセッツ インスティテュート オブ テクノロジー | 磁気共鳴画像法用途のためのナノ粒子 |
| CN104906600B (zh) * | 2015-05-13 | 2018-01-05 | 中国科学院过程工程研究所 | 一种超顺磁性纳米颗粒及其制备方法和应用 |
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| US7906147B2 (en) * | 2006-10-12 | 2011-03-15 | Nanoprobes, Inc. | Functional associative coatings for nanoparticles |
| KR100943839B1 (ko) * | 2007-10-31 | 2010-02-24 | 한국과학기술연구원 | 불규칙 표면구조의 우선 도입에 의해 고수율의바이오-이미지용 나노입자를 제조하는 방법 |
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| US20120195835A1 (en) | 2012-08-02 |
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