KR20080032027A - 저 분자량 코팅 시약을 포함하는 신규 수용성 나노크리스탈및 이의 제조방법 - Google Patents
저 분자량 코팅 시약을 포함하는 신규 수용성 나노크리스탈및 이의 제조방법 Download PDFInfo
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- KR20080032027A KR20080032027A KR1020077028347A KR20077028347A KR20080032027A KR 20080032027 A KR20080032027 A KR 20080032027A KR 1020077028347 A KR1020077028347 A KR 1020077028347A KR 20077028347 A KR20077028347 A KR 20077028347A KR 20080032027 A KR20080032027 A KR 20080032027A
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- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
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- G01N33/588—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving labelled substances with semiconductor nanocrystal label, e.g. quantum dots
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Abstract
Description
Claims (65)
- 다음을 포함하는 수용성 나노크리스탈:원소 주기율표(PSE)의 Ib 족, IIb 족, IVb 족, Vb 족, VIb 족, VIIb 족, VIIIb 족, II 족, III 족 또는 IV 족 원소로부터 선택되는 최소 하나의 금속 M1을 포함하는 나노크리스탈 코어, 및 다음을 추가적으로 포함한다:상기 나노크리스탈 코어의 표면에 부착된 캡핑 시약을 포함하는 첫 번째 층, 상기 캡핑시약은 최소 두개의 결합기를 가지고,코팅 시약과 공유적으로 결합된 최소 두개의 결합 부분, 및 두 번째 층에 수용성을 부여하기 위한 최소 하나의 수용성 기를 가지는 저 분자량 코팅 시약을 포함하는 두 번째 층.
- 다음을 포함하는 수용성 나노크리스탈:원소 주기율표(PSE)의 II 족, VIIA 족, VIIIA 족, IB 족, IIB 족, III 족 또는 IV 족 원소로부터 선택되는 최소 하나의 금속 M1, 및 상기 PSE의 V 족 또는 VI 족으로부터 선택되는 최소 하나의 원소 A를 포함하는 나노크리스탈 코어, 및 다음을 추가적으로 포함한다:상기 나노크리스탈 코어의 표면에 부착된 캡핑 시약을 포함하는 첫 번째 층, 상기 캡핑시약은 최소 두개의 결합기를 가지고,코팅 시약과 공유적으로 결합된 최소 두개의 결합 부분, 및 두 번째 층에 수용성을 부여하기 위한 최소 하나의 수용성 기를 가지는 저 분자량 코팅 시약을 포함하는 두 번째 층.
- 제 1 항 또는 제 2 항에 있어서, 상기 캡핑 시약은 상기 나노크리스탈 코어의 표면에 친화력을 가지는 말단기를 포함하는 것을 특징으로 나노크리스탈.
- 제 3 항에 있어서, 상기 말단기는 설프히드릴, 아미노, 아민-옥사이드 및 포스피노기로 구성된 군으로부터 선택되는 것을 특징으로 하는 나노크리스탈.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 캡핑 시약의 최소 두개의 결합기는 소수성 영역에 의해 상기 말단기로부터 떨어져서 위치하는 것을 특징으로 하는 나노크리스탈.
- 제 4 항에 있어서, 상기 최소 두개의 결합기 각각은 독립적으로 아미노, 하이드록실, 카르보닐, 카르복실, 니트릴, 니트로, 이소시아네이트, 에폭사이드, 안 하이드라이드 및 할라이드기로부터 선택되는 작용기를 포함하는 것을 특징으로 하는 나노크리스탈.
- 제 1 항 내지 제 6 항 중 어느 한 항에 있어서, 상기 캡핑 시약은 다음의 화학식 (I)을 가지는 분자인 것을 특징으로 하는 나노크리스탈:화학식 I상기 X는 S, N, P, 또는 O=P으로부터 선택되는 말단기이고,Ra는 최소 두개의 주 사슬 탄소 원자를 포함하는 부분이며,Y는 N, C, -COO- 또는 -CH2O-로부터 선택되고,Z는 극성 작용기를 포함하는 부분이며,k는 O 또는 1이고,m은 1 내지 3의 정수이며,n은 0 내지 3의 정수이고,n'은 0 내지 2의 정수이며, 상기 n'은 Y의 원자가 요건을 만족시키도록 선택된다.
- 제 7 항에 있어서, 상기 Ra 부분은 2-50개의 주 사슬 원자를 포함하는 것을 특징으로 하는 나노크리스탈.
- 제 7 항 또는 제 8 항에 있어서, 상기 Ra는 알킬, 알케닐, 알콕시 및 아릴기로 구성된 군으로부터 선택되는 것을 특징으로 하는 나노크리스탈.
- 제 9 항에 있어서, 상기 Ra는 각각 독립적으로 에틸, 프로필, 부틸, 펜틸, 사이클로펜틸, 사이클로헥실, 사이클로-옥틸, 에톡시 및 벤질기로 구성된 군으로부터 선택되는 부분인 것을 특징으로 하는 나노크리스탈.
- 제 7 항 내지 제 10 항 중 어느 한 항에 있어서, 상기 Z는 아미노, 하이드록실, 카르보닐, 카르복실, 니트릴, 니트로, 이소시아네이트 및 할라이드기로 구성된 군으로부터 선택되는 작용기인 것을 특징으로 하는 나노크리스탈.
- 제 11 항에 있어서, 상기 Z는 2-50개의 주 사슬 원자를 포함하는 것을 특징으로 하는 나노크리스탈.
- 제 12 항에 있어서, 상기 Z는 아미드 또는 에스테르 결합을 추가적으로 포함하는 것을 특징으로 하는 나노크리스탈.
- 제 1 항 내지 제 13 항 중 어느 한 항에 있어서, 상기 캡핑 시약은 두개의 동일한 결합기를 포함하는 것을 특징으로 하는 나노크리스탈.
- 제 1 항 내지 제 13 항 중 어느 한 항에 있어서, 상기 캡핑 시약은 두개의 동일한 결합기를 포함하는 것을 특징으로 하는 나노크리스탈.
- 제 1 항 내지 제 5 항 중 어느 한 항에 있어서, 상기 캡핑 시약의 결합기는 중합 가능한 불포화 탄소-탄소 결합을 포함하는 것을 특징으로 나노크리스탈.
- 제 18 항에 있어서, 상기 캡핑 시약은 ω-티올기 말단 메틸 메타크릴에이트, 2-부텐티올, (Ε)-2-부텐-1-티올, S-(Ε)-2-부테닐 티오아세테이트, S-3-메틸부테닐 티오아세테이트, 2-퀴놀린메탄티올 및 S-2-퀴놀린메틸 티오아세테이트로 구성된 군으로부터 선택되는 것을 특징으로 하는 나노크리스탈.
- 제 20 항에 있어서, 상기 T는 카르복실, 아미노, 니트로, 하이드록실, 카르보닐기 및 이들의 유도체로 구성된 군으로부터 선택되는 작용기를 포함하는 것을 특징으로 하는 나노크리스탈.
- 제 20 항 또는 제 21 항에 있어서, 상기 Rc는 3 내지 6개의 주 사슬 탄소 원자를 포함하는 것을 특징으로 하는 나노크리스탈.
- 제 20 항 내지 제 22 항 중 어느 한 항에 있어서, 상기 Z’는 최소 6개의 주 사슬 탄소 원자를 포함하는 것을 특징으로 하는 나노크리스탈.
- 제 23 항에 있어서, 상기 Z’은 아미노, 하이드록실, 카르보닐, 카르복실, 니트릴, 니트로, 이소시아네이트, 에폭사이드, 안하이드라이드 및 할라이드기로 구성된 군으로부터 선택되는 최소 하나의 작용기를 추가적으로 포함하는 것을 특징으로 하는 나노크리스탈.
- 제 24 항에 있어서, 상기 결합 부분 Z’각각은 동일한 것을 특징으로 하는 나노크리스탈.
- 제 25 항에 있어서, 상기 코팅 시약은 디아민, 디카르복실산 및 디올로 구성된 군으로부터 선택되는 것을 특징으로 하는 나노크리스탈.
- 제 26 항에 있어서, 상기 디아민은 2,4-디아미노부틸산 또는 2,3-디아미노프로피온산으로부터 선택되는 것을 특징으로 하는 나노크리스탈.
- 제 24 항에 있어서, 상기 결합 부분 Z’각각은 다른 것을 특징으로 하는 나노크리스탈.
- 제 18 항 또는 제 19 항에 있어서, 상기 코팅 시약은 디엔을 포함하는 것을 특징으로 하는 나노크리스탈.
- 제 31 항에 있어서, 상기 디엔은 1,4-부타디엔, 1,5-펜타디엔 및 1,6-헥사디엔으로 구성된 군으로부터 선택되는 것을 특징으로 하는 나노크리스탈.
- 제 2 항 내지 제 32 항 중 어느 한 항에 있어서, 상기 나노크리스탈은 코어-쉘 나노크리스탈인 것을 특징으로 하는 나노크리스탈.
- 제 33 항에 있어서, 상기 금속은 Zn, Cd, Hg, Mn, Fe, Co, Ni, Cu, Ag 및 Au로 구성된 군으로부터 선택되는 것을 특징으로 하는 나노크리스탈.
- 제 33 항 또는 제 34 항에 있어서, 상기 원소 A는 S, Se 및 Te로 구성된 군으로부터 선택되는 것을 특징으로 하는 나노크리스탈.
- 제 35 항에 있어서, 상기 나노크리스탈은 CdS, CdSe, MgTe, CdTe, ZnS, ZnSe, ZnTe, HgS, HgSe 및 HgTe로 구성된 군으로부터 선택되는 코어 쉘 나노크리스탈인 것을 나노크리스탈.
- 제 2 항 내지 제 36 항 중 어느 한 항에 있어서, 상기 나노크리스탈은 조성 M11 -x-M2XA를 가지는 균일 삼원 합금을 포함하고,여기에서a) A가 상기 PSE의 VI 족 원소를 나타내는 경우, 상기 M1 및 M2는 각각 독립적으로 원소 주기율표(PSE)의 IIb-VIB 족, IIIB-VB 족 또는 IVB 족, II 족 또는 III 족 원소로부터 선택되며, 또는b) A가 상기 PSE의 (V) 족 원소를 나타내는 경우, M1 및 M2는 모두 상기 PSE의 (III) 족 원소로부터 선택되고,다음의 단계를 포함하는 공정에 의해 수득할 수 있는 것을 특징으로 하는 나노크리스탈:ⅰ) 적합한 온도 T1에서 나노크리스탈의 생성에 적합한 형태로 원소 M1을 포함하는 반응 혼합물을 가열하고, 상기 온도에서 나노크리스탈의 생성에 적합한 형태로 원소 A를 첨가하며, 상기 이원 나노크리스탈 M1A를 형성하기에 적합한 온도에서 충분한 시간동안 반응혼합물을 가열한 다음 상기 반응 혼합물을 냉각하여 이원 나노크리스탈 M1A를 형성하는 단계, 및ⅱ) 상기 형성된 이성분 나노크리스탈 M1A를 침전하거나 분리하는 과정 없이, 상기 반응 혼합물을 적합한 온도 T2에서 재가열하고, 나노크리스탈의 생성에 적합한 형태로 상기 원소 M2의 충분한 양을 상기 온도에서 상기 반응 혼합물에 첨가하며, 그 다음 상기 삼원 나노크리스탈 M11 - XM2XA를 형성하기에 적합한 온도에서 충분한 시간 동안 상기 반응 혼합물을 가열한 다음 상기 반응 혼합물을 실온에서 냉각하고, 삼원 나노크리스탈 M11 - XM2XA를 분리하는 단계.
- 제 37 항에 있어서, 상기 x 는 0.001 < x < 0.999인 것을 특징으로 하는 나노크리스탈.
- 제 37 항 또는 제 38 항에 있어서, 상기 x 는 0.01 < x < 0.99인 것을 특징으로 하는 나노크리스탈.
- 제 37 항 내지 제 39 항 중 어느 한 항에 있어서, 상기 x 는 0.5 < x < 0.95인 것을 특징으로 하는 나노크리스탈.
- 제 37 항 내지 제 41 항 중 어느 한 항에 있어서, 상기 원소 M1 및 M2는 각 각 독립적으로 Zn, Cd, Hg, Mn, Fe, Co, Ni, Cu, Ag 및 Au로 구성된 군으로부터 선택되는 것을 특징으로 하는 나노크리스탈.
- 제 37 항 내지 제 41 항 중 어느 한 항에 있어서, 상기 원소 A는 S, Se 및 Te로 구성된 군으로부터 선택되는 것을 특징으로 하는 나노크리스탈.
- 제 42 항에 있어서, 상기 나노크리스탈은 조성 ZnxCd1 - xSe 또는 ZnxCd1 - xS를 가지는 것을 특징으로 하는 나노크리스탈.
- 상기 청구항 중 어느 한 항에 있어서, 상기 폴리머 쉘의 두 번째 층에 컨쥬게이트 되는 분석물에 대해 결합 친화력을 가지는 분자를 추가적으로 포함하는 것을 특징으로 하는 나노크리스탈.
- 제 44 항에 있어서, 분석물에 대해 결합 친화력을 가지는 상기 분자는 단백질, 펩타이드, 면역원성 햅텐의 특징을 가지는 화합물, 핵산, 탄수화물 또는 유기 분자인 것을 특징으로 하는 나노크리스탈.
- 제 44 항 또는 제 45 항에 있어서, 상기 나노크리스탈은 공유결합제를 매개로 하여 분석물에 대한 결합 활성을 가지는 상기 분자에 컨쥬게이트 되는 것을 특징으로 하는 나노크리스탈.
- 분석물을 검출하기 위한 상기 청구항 중 어느 한 항에 기재된 나노크리스탈의 용도.
- 다음의 단계를 포함하는 수용성 나노크리스탈의 제조방법:원소 주기율표(PSE)의 Ib 족, IIb 족, IVb 족, Vb 족, VIb 족, VIIb 족, VIIIb 족, II 족, III 족 또는 IV 족 원소로부터 선택된 최소 하나의 금속 M1을 포함하는 나노크리스탈 코어를 제공하는 단계,상기 나노크리스탈 코어와 캡핑 시약을 반응시켜, 상기 캡핑 시약을 상기 나노크리스탈 코어의 표면에 결합시키고 상기 나노크리스탈 코어를 둘러싸는 첫 번째 층을 형성하는 단계, 그리고상기 캡핑 시약의 최소 두개의 결합기에 대하여 반응하는 최소 두개의 결합 부분, 및 상기 두 번째 층에 수용성을 부여하기 위한 최소 하나의 수용성기를 가지는 저 분자량의 코팅 시약과 상기 캡핑 시약을 결합시켜, 상기 첫 번째 층에 공유 결합된 두 번째 층을 형성하고 상기 나노크리스탈 코어를 둘러싸는 수용성 쉘을 형성하는 단계.
- 다음의 단계를 포함하는 수용성 나노크리스탈 제조 방법:원소 주기율표(PSE)의 IIB-VIB 족, IIIB-VB 족 또는 IVB 족, II 족 또는 III 족 원소로 구성된 군으로부터 선택되는 최소 하나의 금속 M1 및 상기 원소 주기율표의 V 족 또는 VI 족 원소로부터 선택되는 최소 하나의 원소 A를 포함하는 나노크리스탈 코어를 제공하는 단계,상기 나노크리스탈 코어와 캡핑 시약을 반응시켜, 상기 캡핑 시약을 나노크리스탈 코어의 표면에 결합시키고 나노크리스탈 코어를 둘러싸는 첫 번째 층을 형성하는 단계, 그리고상기 캡핑 시약의 최소 두개의 결합기에 대하여 반응하는 최소 두개의 결합 부분, 및 상기 두 번째 층에 수용성을 부여하기 위한 최소 하나의 수용성기를 가지는 저 분자량의 코팅 시약과 상기 캡핑 시약을 결합시켜, 상기 첫 번째 층에 공유 결합된 두 번째 층을 형성하고 상기 나노크리스탈 코어를 둘러싸는 수용성 쉘을 형성하는 단계.
- 제 48 항 또는 제 49 항에 있어서, 상기 캡핑 시약은 친수성인 것을 특징으로 하는 방법.
- 제 48 항 또는 제 49 항에 있어서, 상기 캡핑 시약은 소수성인 것을 특징으로 하는 방법.
- 제 48 항 내지 제 51 항 중 어느 한 항에 있어서, 상기 캡핑 시약에 존재하는 각 결합기는 아미노, 하이드록실, 카르보닐, 카르복실, 니트릴, 니트로, 이소시아네이트, 에폭사이드, 안하이드라이드 및 할라이드기로부터 선택되는 작용기를 포함하는 것을 특징으로 하는 방법.
- 제 48 항 내지 제 52 항 중 어느 한 항에 있어서, 상기 캡핑 시약은 하기 화학식 (I)을 가지는 것을 특징으로 하는 방법:화학식 I상기 X는 S, N, P 또는 O=P로부터 선택되는 말단기 이고,Ra는 최소 두개의 주 사슬 탄소원자를 포함하는 부분이며,Y는 N, C, -COO- 또는 -CH2O-로부터 선택되고,Z는 극성 작용기를 포함하는 부분이며,k는 0 또는 1이고,n은 0 내지 3의 정수이며,n’는 0 내지 2의 정수이고, 상기 n’은 Y의 원자가 요건을 만족시키도록 선택되며,m은 1 내지 3의 정수이다.
- 제 48 항 내지 제 54 항 중 어느 한 항에 있어서, 상기 방법은 상기 코팅 시약을 상기 캡핑 시약에 결합시키는 단계 이전에 상기 캡핑 시약의 결합기를 활성화시키는 단계를 추가적으로 포함하는 것을 특징으로 하는 방법.
- 제 55 항에 있어서, 상기 활성화 단계는 캡핑 시약의 첫 번째 층을 포함하는 상기 나노크리스탈을 결합제와 반응시키는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 56 항에 있어서, 상기 결합제는 1-에틸-3-[3-디메틸아미노프로필]카보디이미드(EDC), 술포-N-하이드록시숙신이미드, N,N’-디사이클로헥실카보디이미드(DCC), N, N’- 디사이클로헥실 카보디이미드, N-(3-디메틸아미노프로필)-N’-에틸카보디이미드 및 N-하이드록시숙신이미드로 구성된 군으로부터 선택되는 것을 특징으로 하는 방법.
- 제 48 항 또는 제 57 항에 있어서, 상기 캡핑 시약과 코팅 시약을 결합시키는 단계는 상기 코팅 시약 및 상기 결합제를 상기 첫 번째 층을 가지는 나노크리스탈 코어를 함유하는 용액에 첨가하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 48 항 내지 제 58 항 중 어느 한 항에 있어서, 상기 결합은 수성 완충 용액에서 실시되는 것을 특징으로 하는 방법.
- 제 59 항에 있어서, 상기 수성 완충 용액은 인산 또는 암모늄 완충 용액을 포함하는 것을 특징으로 하는 방법.
- 제 48 항 내지 제 60 항 중 어느 한 항에 있어서, 상기 결합은 극성 유기 용매에서 실시되는 것을 특징으로 방법.
- 제 61 항에 있어서, 상기 유기 용매는 피리딘, DMF 및 클로로포름으로 구성된 군으로부터 선택되는 것을 특징으로 하는 방법.
- 제 48 항 내지 제 64 항 중 어느 한 항에 있어서, 상기 방법은 상기 두 번째 층에 포함된 상기 폴리머와 두 번째 층에 존재하는 수용성 기를 노출시키기에 적합한 시약을 반응시키는 단계를 추가적으로 포함하는 것을 특징으로 하는 방법.
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