A novel encoding system and methods for determining the location and/or identity of a particular item or component of interest is provided. In particular, the present invention utilizes a "barcode" comprising one or more sizes of semiconductor nanocrystals (quantum dots) having characteristic spectr
A novel encoding system and methods for determining the location and/or identity of a particular item or component of interest is provided. In particular, the present invention utilizes a "barcode" comprising one or more sizes of semiconductor nanocrystals (quantum dots) having characteristic spectral emissions, to either "track" the location of a particular item of interest or to identify a particular item of interest. The semiconductor nanocrystals used in the inventive "barcoding" scheme can be tuned to a desired wavelength to produce a characteristic spectral emission in narrow spectral widths, and with a symmetric, nearly Gaussian line shape, by changing the composition and size of the quantum dot. Additionally, the intensity of the emission at a particular characteristic wavelength can also be varied, thus enabling the use of binary or higher order encoding schemes. The information encoded by the quantum dot can be spectroscopically decoded, thus providing the location and/or identity of the particular item or component of interest. In particular, a single primary light source can be used to decode the inventive barcode. In particularly preferred embodiments, the present system and method is used in applications to security systems, to the tracking of consumer items such as jewelry, vehicles, or paper. In other particularly preferred embodiments, the present system and method is used in applications for biochemistry to track the location of biomolecules such as DNA sequences, combinatorial chemistry, and genomics for encoding and probe identifiers.
대표청구항▼
1. A composition comprising a support and more than one particle size distribution of semiconductor nanocrystal, wherein the semiconductor nanocrystal is bound to the support, and each particle size distribution of semiconductor nanocrystal has a spectral emission distinguishable from the other
1. A composition comprising a support and more than one particle size distribution of semiconductor nanocrystal, wherein the semiconductor nanocrystal is bound to the support, and each particle size distribution of semiconductor nanocrystal has a spectral emission distinguishable from the other particle size distributions of semiconductor nanocrystal bound to the support. 2. The composition of claim 1, wherein the semiconductor nanocrystal further comprises an overcoating at a surface of a semiconductor material of the semiconductor nanocrystal. 3. The composition of claim 1, wherein the semiconductor nanocrystal comprises a II-VI, III-V or IV semiconductor material. 4. The composition of claim 1, wherein the semiconductor material comprises ZnS, ZnSe, ZnTe, CdS, CdSe, CdTe, GaN, GaP, GaAs, BaSb, InP, InAs, InSb, AlS, AlP, AlSb, PbS, PbSe, G, or Si, or ternary mixtures or quaternary mixtures thereof. 5. The composition of claim 1, wherein the semiconductor nanocrystal is water soluble. 6. The composition of claim 1, wherein each distinguishable spectral emission is a wavelength, an intensity, a linewidth, or a combination thereof. 7. A composition comprising a support and more than one particle size distribution of semiconductor nanocrystal, wherein the semiconductor nanocrystal is bound to the support, each particle size distribution of semiconductor nanocrystal has a spectral emission distinguishable from the other particle size distributions bound to the support, the semiconductor nanocrystal comprises a semiconductor and an overcoating at a surface of the semiconductor, and each distinguishable spectral emission is a wavelength, an intensity, a linewidth, or a combination thereof. 8. The composition of claim 6, wherein each distinguishable spectral emission is a wavelength. 9. The composition of claim 7, wherein each distinguishable spectral emission is a wavelength. 10. The composition of claim 6, wherein each distinguishable spectral emission is a linewidth. 11. The composition of claim 7, wherein each distinguishable spectral emission is a linewidth. 12. The composition of claim 10, wherein each linewidth is in the range of 12 to 60 nm. 13. The composition of claim 11, wherein each linewidth is in the range of 12 to 60 nm. 14. The composition of claim 12, wherein each linewidth is 12 to 15 nm. 15. The composition of claim 13, wherein each linewidth is 12 to 15 nm. 16. A composition comprising a support and more than one particle size distribution of semiconductor nanocrystal, wherein the semiconductor nanocrystal is bound to the support, each particle size distribution of semiconductor nanocrystal has a spectral emission distinguishable from the other particle size distributions of semiconductor nanocrystal bound to the support, and the support is a solid or a fluid. 17. The composition of claim 16, wherein the support is a solid. 18. The composition of claim 17, wherein the solid is a polymer or a glass. 19. The composition of claim 18, wherein the solid is a polymer. 20. The composition of claim 19, wherein the polymer is: cellulose, polystyrene, polyacrylamnide, polyacrylate, latex, cross-linked dimethylacrylamide, a polypeptide, or an oligonucleotide. 21. The composition of claim 17, wherein the solid is silica.
Still W. Clark (Clinton NY) Wigler Michael H. (Lloyd Harbor NY) Ohlmeyer Michael H. J. (Plainsboro NJ) Dillard Lawrence W. (Plainsboro NJ) Reader John C. (Princeton NJ), Complex combinatorial chemical libraries encoded with tags.
Still W. Clark ; Wigler Michael H. ; Ohlmeyer Michael H.J. ; Dillard Lawrence W. ; Reader John C., Complex combinatorial chemical libraries encoded with tags.
Ohkawa Kazuhiro (Hirakata JPX) Mitsuyu Tsuneo (Hirakata JPX), Crystal-growth method and semiconductor device production method using the crystal-growth method.
Alivisatos A. Paul (Oakland CA) Colvin Vickie (Springfield NJ), Electroluminescent devices formed using semiconductor nanocrystals as an electron transport media and method of making s.
Huston Alan L. (8501 Fairburn Dr. Springfield VA 22152) Justus Brian L. (6609 Holford La. Springfield VA 22152), Glass matrix doped with activated luminescent nanocrystalline particles.
Cheng Hwa (Woodbury MN) DePuydt James M. (St. Paul MN) Haase Michael A. (Woodbury MN) Qiu Jun (Woodbury MN), Growth of II VI laser diodes with quantum wells by atomic layer epitaxy and migration enhanced epitaxy.
Pavlidis Theodosios (Setauket NY) Wang Yajium P. (Port Jefferson Station NY) Swartz Jerome (Old Field NY), High density two-dimensional bar code symbol.
Chapple-Sokol Jonathan D. (Poughkeepsie NY) Subbanna Seshadri (Hopewell Junction NY) Tejwani Manu J. (Yorktown Heighs NY), Method of making semiconductor quantum dot light emitting/detecting devices.
Weiss Shimon ; Bruchez ; Jr. Marcel ; Alivisatos Paul, Organo Luminescent semiconductor nanocrystal probes for biological applications and process for making and using such p.
Krupke William F. (Pleasanton CA) Page Ralph H. (San Ramon CA) DeLoach Laura D. (Manteca CA) Payne Stephen A. (Castro Valley CA), Transition-metal doped sulfide, selenide, and telluride laser crystal and lasers.
Zarling David A. (Menlo Park CA) Rossi Michel J. (Lausanne CHX) Peppers Norman A. (Belmont CA) Kane James (Lawrenceville NJ) Faris Gregory W. (Menlo Park CA) Dyer Mark J. (San Jose CA) Ng Steve Y. (S, Up-converting reporters for biological and other assays using laser excitation techniques.
Fukui,Shinya; Miyako,Yoshihito; Kanematsu,Yasuo; Hanzawa,Hiromasa, Information presenting substance-containing material, and identification method, identification system and device therefor.
Scher, Erik C.; Buretea, Mihai A.; Whiteford, Jeffery A.; Meisel, Andreas P., Methods of processing nanocrystals, and compositions, devices and systems including same.
Scher,Erik; Buretea,Mihai; Whiteford,Jeffery A.; Meisel,Andreas, Methods of processing nanocrystals, and compositions, devices and systems including same.
Peng,Xiaogang; Chen,Haiyan; Guo,Wenzhou; Wang,Y. Andrew, Nanocrystals in ligand boxes exhibiting enhanced chemical, photochemical, and thermal stability, and methods of making the same.
Clough, Christopher R.; Breen, Craig; Steckel, Jonathan S.; Thamban, Ebenezer Selwyn Arun, Nanocrystals including a group IIIA element and a group VA element, method, composition, device and other products.
Clough, Christopher R.; Breen, Craig; Steckel, Jonathan S.; Thamban, Ebenezer Selwyn Arun, Nanocrystals including a group IIIA element and a group VA element, method, composition, device and other products.
Clough, Christopher R.; Breen, Craig; Steckel, Jonathan S.; Thambaw, Ebenezer Selwyn Arun, Nanocrystals including a group IIIA element and a group VA element, method, composition, device and other products.
Scher, Erik C.; Buretea, Mihai A.; Freeman, William P.; Gamoras, Joel; Qian, Baixin; Whiteford, Jeffrey A., Process for group III-IV semiconductor nanostructure synthesis and compositions made using same.
Scher, Erik C.; Buretea, Mihai A.; Freeman, William P.; Gamoras, Joel; Qian, Baixin; Whiteford, Jeffery A., Process for group III-V semiconductor nanostructure synthesis and compositions made using same.
Scher, Erik C.; Buretea, Mihai A.; Freeman, William P.; Gamoras, Joel; Qian, Baixin; Whiteford, Jeffery A., Process for group III-V semiconductor nanostructure synthesis and compositions made using same.
Scher, Erik C.; Buretea, Mihai A.; Freeman, William P.; Gamoras, Joel; Qian, Baixin; Whiteford, Jeffery A., Process for group III-V semiconductor nanostructure synthesis and compositions made using same.
Scher, Erik C.; Buretea, Mihai A.; Freeman, William P.; Gamoras, Joel; Qian, Baixin; Whiteford, Jeffrey A., Process for group III-V semiconductor nanostructure synthesis and compositions made using same.
Scher, Erik C.; Buretea, Mihai A.; Freeman, William P.; Gamoras, Joel; Qian, Balxin; Whiteford, Jeffrey A., Process for group III-V semiconductor nanostructure synthesis and compositions made using same.
Sargent, Edward Hartley; Clifford, Jason Paul; Konstantatos, Gerasimos; Howard, Ian; Klem, Ethan J. D.; Levina, Larissa, Quantum dot optical devices with enhanced gain and sensitivity and methods of making same.
Sargent, Edward Hartley; Clifford, Jason Paul; Konstantatos, Gerasimos; Howard, Ian; Klem, Ethan J. D.; Levina, Larissa, Quantum dot optical devices with enhanced gain and sensitivity and methods of making same.
Sargent, Edward Hartley; Clifford, Jason Paul; Konstantatos, Gerasimos; Howard, Ian; Klem, Ethan J. D.; Levina, Larissa, Quantum dot optical devices with enhanced gain and sensitivity and methods of making same.
Sargent, Edward Hartley; Clifford, Jason Paul; Konstantatos, Gerasimos; Howard, Ian; Klem, Ethan J. D.; Levina, Larissa, Quantum dot optical devices with enhanced gain and sensitivity and methods of making same.
Sargent, Edward Hartley; Clifford, Jason Paul; Konstantatos, Gerasimos; Howard, Ian; Klem, Ethan J. D.; Levina, Larissa, Quantum dot optical devices with enhanced gain and sensitivity and methods of making same.
Sargent, Edward; Clifford, Jason; Konstantatos, Gerasimos; Howard, Ian; Klem, Ethan J. D.; Levina, Larissa, Quantum dot optical devices with enhanced gain and sensitivity and methods of making same.
Sargent, Edward; Clifford, Jason; Konstantatos, Gerasimos; Howard, Ian; Klem, Ethan J. D.; Levina, Larissa, Quantum dot optical devices with enhanced gain and sensitivity and methods of making same.
Sargent, Edward; Clifford, Jason; Konstantatos, Gerasimos; Howard, Ian; Klem, Ethan J. D.; Levina, Larissa, Quantum dot optical devices with enhanced gain and sensitivity and methods of making same.
Sargent, Edward; Clifford, Jason; Konstantatos, Gerasimos; Howard, Ian; Klem, Ethan J. D.; Levina, Larissa, Quantum dot optical devices with enhanced gain and sensitivity and methods of making same.
Weiss, Shimon; Bruchez, Marcel; Alivisatos, Paul, Semiconductor nanocrystal probes for biological applications and process for making and using such probes.
Weiss, Shimon; Bruchez, Marcel; Alivisatos, Paul, Semiconductor nanocrystal probes for biological applications and process for making and using such probes.
Weiss, Shimon; Bruchez, Marcel; Alivisatos, Paul, Semiconductor nanocrystal probes for biological applications and process for making and using such probes.
Weiss, Shimon; Bruchez, Marcel; Alivisatos, Paul A., Semiconductor nanocrystal probes for biological applications and process for making and using such probes.
Baxter, Brian Cullen; Derisi, Joseph L.; Fordyce, Polly M.; Gerver, Rachel E.; Gòmez-Sjöberg, Rafael; Helms, Brett A.; Thorn, Kurt S.; Zuckermann, Ronald N., Spectrally encoded microbeads and methods and devices for making and using same.
Sargent, Edward; McDonald, Steve; Zhang, Shiguo; Levina, Larissa; Konstantatos, Gerasimos; Cyr, Paul, Three-dimensional bicontinuous heterostructures, a method of making them, and their application in quantum dot-polymer nanocomposite photodetectors and photovoltaics.
Sargent, Edward; McDonald, Steven Ashworth; Zhang, Shiguo; Levina, Larissa; Konstantatos, Gerasimos; Cyr, Paul, Three-dimensional bicontinuous heterostructures, method of making, and their application in quantum dot-polymer nanocomposite photodetectors and photovoltaics.
Sargent, Edward; McDonald, Steven Ashworth; Zhang, Shiguo; Levina, Larissa; Konstantatos, Gerasimos; Cyr, Paul, Three-dimensional bicontinuous heterostructures, method of making, and their application in quantum dot-polymer nanocomposite photodetectors and photovoltaics.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.