KR20170097510A - T1 mri 조영제로서의 나노입자의 분산 안정도를 증가시키는 방법 및 t1 mri 조영제 나노입자 - Google Patents
T1 mri 조영제로서의 나노입자의 분산 안정도를 증가시키는 방법 및 t1 mri 조영제 나노입자 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 나노조영제의 안정도를 분석한 결과이다.
도 3은 본 발명의 T1 이완속도를 분석한 결과이다.
도 4는 본 발명의 나노조영제의 동물 독성을 분석한 결과이다.
도 5는 단백질 또는 금을 지지체로 이용하여 제조된 본 발명의 나노지지체 입자의 안정도를 분석한 결과이다.
Claims (33)
- 다음 단계를 포함하는 T1 조영제로서의 나노입자의 분산 안정도를 증가시키는 방법:
(a) 입자화(particlization) 하는 경우 표면에 친수성 화학작용기를 노출시킬 수 있는 지지체 물질을 선택하는 단계;
(b) 상기 지지체 물질을 이용하여 지지체 입자(support particles)를 제조하는 단계; 상기 지지체 입자의 표면은 친수성 화학작용기가 노출되어 있고 상기 지지체 입자의 수화(hydrodynamic) 지름은 1-20 nm이며; 및
(c) 상기 지지체 입자 상에 T1 조영물질을 코팅하여 조영제로서의 나노입자를 제조하는 단계; 상기 T1 조영물질의 코팅은 상기 지지체 입자 표면의 친수성 작용기 및 상기 조영물질 사이의 결합에 의해 이루어지며; 상기 T1 조영물질의 코팅은 상기 지지체의 표면에 대하여 부분적인 코팅이며; 상기 지지체 입자 상의 친수성의 작용기 중 일부는 지지체 표면에 여전히 노출되어 있으며; 상기 나노입자의 수화 지름은 2-30 nm이다.
- 제 1 항에 있어서, 상기 지지체 물질은 친수성 화학작용기를 포함하는 유기중합체, 실리카 또는 금(Au)인 것을 특징으로 하는 방법.
- 제 2 항에 있어서, 상기 유기중합체는 다당류(polysaccharide)인 것을 특징으로 하는 방법.
- 제 3 항에 있어서, 상기 다당류는 덱스트란(dextran)인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 지지체 상에 T1 조영물질을 코팅하는 것은 화학결합을 통해 이루어지는 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 지지체 입자의 수화 지름은 1-15 nm, 1-10 nm, 1-8 nm, 1-5 nm, 1-4 nm, 2-15 nm, 2-10 nm, 2-8 nm, 2-5 nm, 2-4 nm, 3-15 nm, 3-10 nm, 3-8 nm, 3-5 nm, 3-4 nm, 4-15 nm, 4-10 nm, 4-8 nm, 4-7 nm 또는 4-5 nm인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 조영제로서의 나노입자의 수화 지름은 2-25 nm, 2-20 nm, 2-15 nm, 2-10 nm, 2-8 nm, 2-6 nm, 2-5 nm, 3-25 nm, 3-20 nm, 3-15 nm, 3-10 nm, 3-8 nm, 3-6 nm, 3-5 nm, 4-25 nm, 4-20 nm, 4-15 nm, 4-10 nm, 4-8 nm, 4-7 nm 또는 4-6 nm인 것을 특징으로 하는 방법.
- 제 2 항에 있어서, 상기 단계 (b)는 상기 유기중합체와 친수성 화학작용기를 갖는 가교제를 반응시켜 유기중합체를 교차결합시켜 실시하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 단계 (b)에서 지지체 입자의 표면에 노출되는 친수성 화학작용기는 지지체 물질 자체로부터 유래된 것을 특징으로 하는 방법.
- 제 8 항에 있어서, 상기 단계 (b)에서 지지체 입자의 표면에 노출되는 친수성 화학작용기는 가교제로부터 유래된 것을 특징으로 하는 방법.
- 제 8 항에 있어서, 상기 친수성 화학작용기를 갖는 가교제는 아민기를 갖는 가교제인 것을 특징으로 하는 방법.
- 제 11 항에 있어서, 상기 지지체 입자는 표면에 아민기가 노출되어 있으며 상기 단계 (b)는 상기 아민기를 카르복실기로 대체하는 과정을 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 T1 조영물질은 철산화물(iron oxide)인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 단계 (c)에서 상기 지지체 입자 100 중량에 대하여 상기 T1 조영물질의 사용량은 0.5-10 wt%, 0.8-7.0 wt% 0.5-5.0 wt% 또는 0.9-5.0 wt%인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 T1 조영물질은 지지체 입자 표면에 있는 친수성 작용기의 14-70%, 14-60%, 14-50%, 14-45%, 15-70%, 15-60%, 15-50%, 15-45%, 16-70%, 16-60%, 16-50% 또는 16-45%에 결합되어 있는 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 T1 조영제로서의 나노입자는 수용액에서 125-500 mM NaCl 농도 변화에 대하여 수화 지름의 변화가 ±10% 이하이고, pH 6-8 변화에 대하여 수화 지름의 변화가 ±10% 이하이며, 4-37℃ 온도 변화에 대하여 수화 지름의 변화가 ±10% 이하인 분산 안정성을 갖는 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 T1 조영제로서의 나노입자는 1 mM 농도(금속기준)에서 2.7-5.0 s-1의 T1 이완율(relaxivity)를 나타내는 것을 특징으로 하는 방법.
- (a) 지지체 입자 및 (b) 상기 지지체 입자 상에 코팅된 T1 조영물질을을 포함하는 T1 조영제 나노입자에 있어서, 상기 지지체 입자의 표면은 친수성 작용기가 노출되어 있고 상기 지지체 입자의 수화(hydrodynamic) 지름은 1-20 nm이며, 상기 T1 조영물질은 상기 지지체 입자 표면의 친수성 작용기에 결합되어 있고, 상기 T1 조영물질은 상기 지지체 표면에 있는 일부 친수성 작용기에 결합되어 있으며; 상기 지지체 입자 상의 친수성 작용기 중 일부는 지지체 표면에 여전히 노출되어 있으며; 상기 나노입자의 수화 지름은 2-30 nm인 것을 특징으로 하는 T1 조영제 나노입자.
- 제 18 항에 있어서, 상기 지지체 물질은 친수성 화학작용기를 포함하는 유기중합체, 실리카 또는 금(Au)인 것을 특징으로 하는 T1 조영제 나노입자.
- 제 19 항에 있어서, 상기 유기중합체는 다당류(polysaccharide)인 것을 특징으로 하는 T1 조영제 나노입자.
- 제 20 항에 있어서, 상기 다당류는 덱스트란(dextran)인 것을 특징으로 하는 T1 조영제 나노입자.
- 제 18 항에 있어서, 상기 T1 조영물질은 지지체 상에 화학결합을 통해 코팅되어 있는 특징으로 하는 T1 조영제 나노입자.
- 제 18 항에 있어서, 상기 지지체 입자의 수화 지름은 1-15 nm, 1-10 nm, 1-8 nm, 1-5 nm, 1-4 nm, 2-15 nm, 2-10 nm, 2-8 nm, 2-5 nm, 2-4 nm, 3-15 nm, 3-10 nm, 3-8 nm, 3-5 nm, 3-4 nm, 4-15 nm, 4-10 nm, 4-8 nm, 4-7 nm 또는 4-5 nm인 것을 특징으로 하는 T1 조영제 나노입자.
- 제 18 항에 있어서, 상기 조영제로서의 나노입자의 수화 지름은 2-25 nm, 2-20 nm, 2-15 nm, 2-10 nm, 2-8 nm, 2-6 nm, 2-5 nm, 3-25 nm, 3-20 nm, 3-15 nm, 3-10 nm, 3-8 nm, 3-6 nm, 3-5 nm, 4-25 nm, 4-20 nm, 4-15 nm, 4-10 nm, 4-8 nm, 4-7 nm 또는 4-6 nm인 것을 특징으로 하는 T1 조영제 나노입자.
- 제 19 항에 있어서, 상기 유기중합체는 친수성 화학작용기를 갖는 가교제에 의해 교차결합된 것을 특징으로 하는 T1 조영제 나노입자.
- 제 18 항에 있어서, 상기 지지체 입자의 표면에 노출된 친수성 화학작용기는 지지체 물질 자체로부터 유래된 것을 특징으로 하는 T1 조영제 나노입자.
- 제 25 항에 있어서, 상기지지체 입자의 표면에 노출된 친수성 화학작용기는 가교제로부터 유래된 것을 특징으로 하는 T1 조영제 나노입자.
- 제 25 항에 있어서, 상기 친수성 화학작용기를 갖는 가교제는 아민기를 갖는 가교제인 것을 특징으로 하는 T1 조영제 나노입자.
- 제 28 항에 있어서, 상기 지지체 입자는 표면에 아민기가 노출되어 있으며 상기 노출된 아민기는 카르복실기로 대체된 것을 특징으로 하는 T1 조영제 나노입자.
- 제 18 항에 있어서, 상기 T1 조영물질은 철산화물(iron oxide)인 것을 특징으로 하는 T1 조영제 나노입자.
- 제 18 항에 있어서, 상기 T1 조영물질은 지지체 입자 표면에 있는 친수성 작용기의 14-70%, 14-60%, 14-50%, 14-45%, 15-70%, 15-60%, 15-50%, 15-45%, 16-70%, 16-60%, 16-50% 또는 16-45%에 결합되어 있는 것을 특징으로 하는 T1 조영제 나노입자.
- 제 18 항에 있어서, 상기 T1 조영제로서의 나노입자는 수용액에서 125-500 mM NaCl 농도 변화에 대하여 수화 지름의 변화가 ±10이고, pH 6-8 변화에 대하여 수화 지름의 변화가 ±10이며, 4-37℃ 온도 변화에 대하여 수화 지름의 변화가 ±10인 분산 안정성을 갖는 것을 특징으로 하는 T1 조영제 나노입자.
- 제 18 항에 있어서, 상기 T1 조영제로서의 나노입자는 1 mM 농도(금속기준)에서 2.7-5.0 s-1의 T1 이완율(relaxivity)를 나타내는 것을 특징으로 하는 T1 조영제 나노입자.
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| JP2018543635A JP6772279B2 (ja) | 2016-02-18 | 2017-02-20 | T1 mri造影剤としてのナノ粒子の分散安定度を増加させる方法及びt1 mri造影剤ナノ粒子 |
| PCT/KR2017/001852 WO2017142382A1 (ko) | 2016-02-18 | 2017-02-20 | T1 mri 조영제로서의 나노입자의 분산 안정도를 증가시키는 방법 및 t1 mri 조영제 나노입자 |
| US15/999,746 US12496363B2 (en) | 2016-02-18 | 2017-02-20 | Method for increasing dispersion stability of nanoparticles as T1 MRI contrast agent and T1 MRI contrast nanoparticles |
| CN201780013413.5A CN108712915B (zh) | 2016-02-18 | 2017-02-20 | 提高作为t1型磁共振成像造影剂的纳米粒子的分散稳定性的方法 |
| EP17753543.2A EP3417882A4 (en) | 2016-02-18 | 2017-02-20 | METHOD FOR INCREASING THE DISPERSION STABILITY OF NANOPARTICLES AS T1 MRI CONTRASTING AGENTS AND T1 MRI CONTRASTANT ANOPARTICLES |
| KR1020180088177A KR102590683B1 (ko) | 2016-02-18 | 2018-07-27 | T1 mri 조영제로서의 나노입자의 분산 안정도를 증가시키는 방법 및 t1 mri 조영제 나노입자 |
| US19/388,084 US20260077070A1 (en) | 2016-02-18 | 2025-11-13 | Method for increasing dispersion stability of nanoparticles as t1 mri contrast agent and t1 mri contrast nanoparticles |
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| WO2024167358A1 (ko) * | 2023-02-08 | 2024-08-15 | 주식회사 인벤테라 | 차세대 adc 링커 플랫폼 기술 및 다당류 가교 콜로이드 입자-약물 접합체 |
| WO2025216570A1 (ko) * | 2024-04-10 | 2025-10-16 | 주식회사 인벤테라 | 림프관으로 배출 가능하고 면역원성이 감소된 다당류 가교 콜로이드 입자 기반 기능성 약물 |
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| CN104955486A (zh) | 2013-01-04 | 2015-09-30 | 延世大学校产学协力团 | 包含涂敷于纳米粒子载体表面的t1 造影物质的磁共振成像造影剂 |
| CN109663135B (zh) * | 2018-11-21 | 2021-10-22 | 上海师范大学 | Zif-8涂覆四氧化三铁纳米粒子材料及其制备方法和应用 |
| JP2022173765A (ja) * | 2021-05-10 | 2022-11-22 | Jnc株式会社 | 磁性粒子及びその製造方法 |
| EP4385525A1 (en) * | 2021-08-09 | 2024-06-19 | Inventera Inc. | Nanostructure excreted in urine through kidney without being phagocytosed and/or metabolized by macrophage after in vivo injection |
| CN115192737B (zh) * | 2022-07-18 | 2023-08-29 | 苏州久蓝生物医药有限公司 | 一种mri造影剂及其制备方法 |
| CN115845089B (zh) * | 2022-12-13 | 2025-06-17 | 北京化工大学 | 一种单原子金属磁共振造影剂及其制备方法和应用 |
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| CN104955486A (zh) | 2013-01-04 | 2015-09-30 | 延世大学校产学协力团 | 包含涂敷于纳米粒子载体表面的t1 造影物质的磁共振成像造影剂 |
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-
2016
- 2016-02-18 KR KR1020160019363A patent/KR20170097510A/ko not_active Ceased
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2017
- 2017-02-20 US US15/999,746 patent/US12496363B2/en active Active
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- 2017-02-20 EP EP17753543.2A patent/EP3417882A4/en active Pending
- 2017-02-20 WO PCT/KR2017/001852 patent/WO2017142382A1/ko not_active Ceased
- 2017-02-20 CN CN201780013413.5A patent/CN108712915B/zh active Active
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024167358A1 (ko) * | 2023-02-08 | 2024-08-15 | 주식회사 인벤테라 | 차세대 adc 링커 플랫폼 기술 및 다당류 가교 콜로이드 입자-약물 접합체 |
| WO2025216570A1 (ko) * | 2024-04-10 | 2025-10-16 | 주식회사 인벤테라 | 림프관으로 배출 가능하고 면역원성이 감소된 다당류 가교 콜로이드 입자 기반 기능성 약물 |
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| Publication number | Publication date |
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| US20190083660A1 (en) | 2019-03-21 |
| WO2017142382A1 (ko) | 2017-08-24 |
| CN108712915B (zh) | 2022-03-08 |
| CN108712915A (zh) | 2018-10-26 |
| EP3417882A1 (en) | 2018-12-26 |
| JP6772279B2 (ja) | 2020-10-21 |
| EP3417882A4 (en) | 2019-11-06 |
| JP2019508357A (ja) | 2019-03-28 |
| US20260077070A1 (en) | 2026-03-19 |
| US12496363B2 (en) | 2025-12-16 |
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