[미국특허]
Semiconductor nanocrystal probes for biological applications and process for making and using such probes
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C12M-001/00
C12Q-001/68
출원번호
US-0406651
(2009-03-18)
등록번호
US-8288152
(2012-10-16)
발명자
/ 주소
Weiss, Shimon
Bruchez, Marcel
Alivisatos, Paul
출원인 / 주소
The Regents of the University of California
대리인 / 주소
Knobbe, Martens, Olson & Bear, LLP
인용정보
피인용 횟수 :
4인용 특허 :
181
초록▼
A semiconductor nanocrystal compound and probe are described. The compound is capable of linking to one or more affinity molecules. The compound comprises (1) one or more semiconductor nanocrystals capable of, in response to exposure to a first energy, providing a second energy, and (2) one or more
A semiconductor nanocrystal compound and probe are described. The compound is capable of linking to one or more affinity molecules. The compound comprises (1) one or more semiconductor nanocrystals capable of, in response to exposure to a first energy, providing a second energy, and (2) one or more linking agents, having a first portion linked to the one or more semiconductor nanocrystals and a second portion capable of linking to one or more affinity molecules. One or more semiconductor nanocrystal compounds are linked to one or more affinity molecules to form a semiconductor nanocrystal probe capable of bonding with one or more detectable substances in a material being analyzed, and capable of, in response to exposure to a first energy, providing a second energy. Also described are processes for respectively: making the semiconductor nanocrystal compound; making the semiconductor nanocrystal probe; and treating materials with the probe.
대표청구항▼
1. A semiconductor nanocrystal composition, comprising: a) a core comprising a first semiconductor material;b) a core-overcoating shell comprising a second semiconductor material, wherein the core and the core-overcoating shell form a core/shell nanocrystal; andc) an encapsulating net surrounding th
1. A semiconductor nanocrystal composition, comprising: a) a core comprising a first semiconductor material;b) a core-overcoating shell comprising a second semiconductor material, wherein the core and the core-overcoating shell form a core/shell nanocrystal; andc) an encapsulating net surrounding the core/shell nanocrystal. 2. The semiconductor nanocrystal composition of claim 1, wherein said semiconductor nanocrystal composition is water-soluble. 3. The semiconductor nanocrystal composition of claim 1, wherein said semiconductor nanocrystal composition has a narrow emission wavelength band. 4. The semiconductor nanocrystal composition of claim 3, wherein said narrow emission wavelength band does not exceed 40 nm in width when measured at full width half maximum. 5. The semiconductor nanocrystal composition of claim 3, wherein said narrow emission wavelength band does not exceed about 20 nm in width when measured at full width half maximum. 6. The semiconductor nanocrystal composition of claim 1, wherein said encapsulating net comprises one or more linking agents capable of linking said core/shell nanocrystals to one or more affinity molecules. 7. The semiconductor nanocrystal composition of claim 6, wherein said one or more linking agents are polymerizable. 8. The semiconductor nanocrystal composition of claim 6, wherein said one or more linking agents comprise a thiol moiety. 9. The semiconductor nanocrystal composition of claim 6, wherein said one or more linking agents comprise an alkyl group. 10. The semiconductor nanocrystal composition of claim 1, wherein said core has a diameter from about 20 Å to about 100 Å. 11. The semiconductor nanocrystal composition of claim 1, wherein said core-overcoating shell is 1-10 monolayers thick. 12. The semiconductor nanocrystal composition of claim 1, wherein said core-overcoating shell epitaxially surrounds said core. 13. The semiconductor nanocrystal composition of claim 1, wherein said core/shell nanocrystal has an average cross-section that is no larger than about 20 nm. 14. The semiconductor nanocrystal composition of claim 1, wherein said core/shell nanocrystal has an average cross-section of about 1 nm to about 10 nm. 15. The semiconductor nanocrystal composition of claim 1, wherein said first semiconductor material comprises a Group II-VI semiconductor. 16. The semiconductor nanocrystal composition of claim 1, wherein said first semiconductor material comprises a Group III-V semiconductor. 17. The semiconductor nanocrystal composition of claim 1, wherein said first semiconductor material comprises MgS, MgSe, MgTe, CaS, CaSe, CaTe, SrS, SrSe, SrTe, BaS, BaSe, BaTe, ZnS, ZnSe, ZnTe, CdS, CdSe, CdTe, HgS, HgSe, or HgTe. 18. The semiconductor nanocrystal composition of claim 1, wherein said first semiconductor material comprises GaAs, InGaAs, InP, or InAs. 19. The semiconductor nanocrystal composition of claim 1, wherein said second semiconductor material comprises a Group II-VI semiconductor. 20. The semiconductor nanocrystal composition of claim 1, wherein said second semiconductor material comprises a Group III-V semiconductor. 21. The semiconductor nanocrystal composition of claim 1, wherein said second semiconductor material comprises MgS, MgSe, MgTe, CaS, CaSe, CaTe, SrS, SrSe, SrTe, BaS, BaSe, BaTe, ZnS, ZnSe, ZnTe, CdS, CdSe, CdTe, HgS, HgSe, or HgTe. 22. The semiconductor nanocrystal composition of claim 1, wherein said second semiconductor material comprises GaAs, InGaAs, InP, or InAs. 23. The semiconductor nanocrystal composition of claim 1, wherein said first semiconductor material comprises CdSe and the second semiconductor material comprises ZnS. 24. A semiconductor nanocrystal composition, comprising: a) a core comprising a first semiconductor material;b) a core-overcoating shell comprising a second semiconductor material, wherein the core and the core-overcoating shell form a core/shell nanocrystal; and,c) an encapsulating net surrounding the core/shell nanocrystal;wherein the core has an average cross-section no larger than 20 nanometers. 25. The semiconductor nanocrystal composition of claim 24, wherein said core has an average cross-section no larger than 10 nanometers. 26. The semiconductor nanocrystal composition of claim 24, wherein said nanocrystal core has an average cross-section in a range of from 1 nanometer to 10 nanometers. 27. The semiconductor nanocrystal composition of claim 24, wherein said encapsulating net comprises one or more linking agents capable of linking said core/shell nanocrystal to one or more affinity molecules. 28. The semiconductor nanocrystal composition of claim 27, wherein said one or more linking agents are polymerizable. 29. The semiconductor nanocrystal composition of claim 27, wherein said one or more linking agents comprise a thiol moiety. 30. The semiconductor nanocrystal composition of claim 27, wherein said one or more linking agents comprise an alkyl group. 31. The semiconductor nanocrystal composition of claim 24, wherein said first semiconductor material comprises a Group II-VI semiconductor. 32. The semiconductor nanocrystal composition of claim 24, wherein said first semiconductor material comprises a Group III-V semiconductor. 33. The semiconductor nanocrystal composition of claim 24, wherein said first semiconductor material comprises MgS, MgSe, MgTe, CaS, CaSe, CaTe, SrS, SrSe, SrTe, BaS, BaSe, BaTe, ZnS, ZnSe, ZnTe, CdS, CdSe, CdTe, HgS, HgSe, or HgTe. 34. The semiconductor nanocrystal composition of claim 24, wherein said first semiconductor material comprises GaAs, InGaAs, InP, or InAs. 35. The semiconductor nanocrystal composition of claim 24, wherein said second semiconductor material comprises a Group II-VI semiconductor. 36. The semiconductor nanocrystal composition of claim 24, wherein said second semiconductor material comprises a Group III-V semiconductor. 37. The semiconductor nanocrystal composition of claim 24, wherein said second semiconductor material comprises MgS, MgSe, MgTe, CaS, CaSe, CaTe, SrS, SrSe, SrTe, BaS, BaSe, BaTe, ZnS, ZnSe, ZnTe, CdS, CdSe, CdTe, HgS, HgSe, or HgTe. 38. The semiconductor nanocrystal composition of claim 24, wherein said second semiconductor material comprises GaAs, InGaAs, InP, or InAs. 39. The semiconductor nanocrystal composition of claim 24, wherein said first semiconductor material comprises CdSe and the second semiconductor material comprises ZnS.
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