Alloyed semiconductor quantum dots and...

Chemistry: molecular biology and microbiology – Apparatus – Including measuring or testing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C435S007100, C435S287100, C435S967000, C436S546000, C436S164000, C436S166000, C436S172000, C356S925000, C422S082050, C422S082080

Reexamination Certificate

active

07981667

ABSTRACT:
An alloyed semiconductor quantum dot comprising an alloy of at least two semiconductors, wherein the quantum dot has a homogeneous composition and is characterized by a band gap energy that is non-linearly related to the molar ratio of the at least two semiconductors; a series of alloyed semiconductor quantum dots related thereto; a concentration-gradient quantum dot comprising an alloy of a first semiconductor and a second semiconductor, wherein the concentration of the first semiconductor gradually increases from the core of the quantum dot to the surface of the quantum dot and the concentration of the second semiconductor gradually decreases from the core of the quantum dot to the surface of the quantum dot; a series of concentration-gradient quantum dots related thereto; in vitro and in vivo methods of use; and methods of producing the alloyed semiconductor and concentration-gradient quantum dots and the series of quantum dots related thereto.

REFERENCES:
patent: 5087616 (1992-02-01), Meyers et al.
patent: 6207392 (2001-03-01), Weiss et al.
patent: 6306610 (2001-10-01), Bawendi et al.
patent: 6710366 (2004-03-01), Lee et al.
patent: 6846565 (2005-01-01), Korgel et al.
patent: 2003/0047816 (2003-03-01), Dutta
patent: 2003/0066998 (2003-04-01), Lee
Aldana et al, “Photochemical Instability of CdSe Nanocrystals Coated by Hydrophilic Thiols,”J. Am. Chem. Soc., 123, 8844-8850 (2001).
Alivisatos, Semiconductor Clusters, Nanocrystals, and Quantum Dots,Science, 271:5251, 933-37 (1996).
Alivisatos, “Perspectives on the Physical Chemistry of Semiconductor Nanocrystals,”J. Phys. Chem., 100, 13226-13229 (1996).
Bernard et al., “Electronic structure of ZnS, ZnSe, ZnTe, and their pseudobinary alloys,”Physical Review B, 36:3, 3199-3228 (1987).
Chan et al., “Quantum Dot Bioconjugates for Ultrasensitive Nonisotopic Detection,”Science, 281, 2016-2018 (1998).
Dabbousi et al., “(CdSe)ZnS Core-Shell Quantum Dots: Synthesis and Characterization of a Size Series of Highly Luminescent Nanocrystallites,”J. Phys. Chem., B, 101: 9463-9475 (1997).
De Smet et al., “Determination of Ostwad Ripening Rates from Dynamic Light Scattering Measurements,”Langmiur, 15, 2327-2332 (1999).
Hines et al., “Synthesis and Characterization of Strongly Luminescing ZnS-Capped CdSe Nanocrystals,”J. Phys. Chem., 100, 468-71 (1996).
Korgel et al., “Controlled Synthesis of Mixed Core and Layered (Zn,Cd)S and (Hg,Cd)S Nanocrystals within Phosphatidylcholine Vesicles,”Langmiur, 16, 3588-3594 (2000).
Link et al., “Alloy Formation of Gold-Silver Nanoparticles and the Dependence of the Plasmon Absorption on Their Composition,”J. Phys. Chem. B., 103, 3529-3533 (1999).
Mallin et al., “Solution-Phase Synthesis of Sub-10 nm Au-Ag Alloy Nanoparticles,”American Chemical Society, 2:11, 1235-1237 (2002).
Mitchell et al., “Programmed Assembly of DNA Functionalized Quantum Dots,”J. Am. Chem. Soc., 121, 8122-8123 (1999).
Mulvaney, “Surface Plasmon Spectroscopy of Nanosized Metal Particles,”Langmiur, 12, 788-800 (1996).
Nirmal et al., “Fluorescence Intermittency in Single Cadmium Selenide Nanocrystals,”Nature, 383, 802-804 (1996).
Peng et al., “Epitaxial Growth of Highly Luminescent CdSe/CdS Core/Shell Nanocrystals with Photostability and Electronic Accessibility,”J. Am. Chem. Soc., 119, 7019-1029 (1997).
Peng et al., “Kinetics of II-VI and III-V Colloidal Semiconductor Nanocrystals Growth: ‘Focusing’ of Size Distributions,”J. Am. Chem. Soc., 120, 5343-5344 (1998).
Peng et al., “Formation of High-Quality CdTe, CdSe, and CdS Nanocrystals Using CdO as Precursor,”J. Am. Chem. Soc., 123, 183-184 (2001).
Poon etal., “Relativistic band structure of ternary II-VI semiconductor alloys containing Cd, Zn, Se and Te,”J. Phys.: Condens. Matter 7, 2783-2799 (1995).
Talapin et al., “Synthesis and surface modification of amino-stabilized CdSe, CdTe and InP nanocrystals,”Colloids Surf, 202, 145-154 (2002).
Wei et al., “First-principles calculation of band offsets, optical bowings and defects in CdS, CdSe, CdTe, and their alloys,”J. Appl. Phys., 87:3, 1304-1311 (2000).
Weller, “Colloidal Semiconductor Q-Particle: Chemistry in the Transition Region Between Solid State and Molecules,”Angew. Chem. Int. Ed. Engl., 32, 41-53 (1993).
Search Report from International Patent Application No. PCT/US04/13119.
Bailey et al.,J. Am. Chem. Soc., 125(23):7100-7106 (2003).
Golan et al.,Adv. Materials VCH Verlagsgesellschaft, 8(8):631-633 (1996).
Gurusinghe et al.,J. Phys. Chem., 112:12795-12800 (2008).
Zhu et al.,Mat. Res. Soc. Symp. Proc., 607:291-296 (2000).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Alloyed semiconductor quantum dots and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Alloyed semiconductor quantum dots and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alloyed semiconductor quantum dots and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2670754

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.