WO2004031732A3 - Nanocrystals in ligand boxes exhibiting enhanced chemical, photochemical, and thermal stability, and methods of making the same - Google Patents

Nanocrystals in ligand boxes exhibiting enhanced chemical, photochemical, and thermal stability, and methods of making the same Download PDF

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Publication number
WO2004031732A3
WO2004031732A3 PCT/US2003/031461 US0331461W WO2004031732A3 WO 2004031732 A3 WO2004031732 A3 WO 2004031732A3 US 0331461 W US0331461 W US 0331461W WO 2004031732 A3 WO2004031732 A3 WO 2004031732A3
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Prior art keywords
nanocrystals
dendron
cross
photochemical
methods
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PCT/US2003/031461
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French (fr)
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WO2004031732A2 (en
Inventor
Xiaogang Peng
Haiyan Chen
Wenzhou Guo
Y Andrew Wang
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Univ Arkansas
Xiaogang Peng
Haiyan Chen
Wenzhou Guo
Y Andrew Wang
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Application filed by Univ Arkansas, Xiaogang Peng, Haiyan Chen, Wenzhou Guo, Y Andrew Wang filed Critical Univ Arkansas
Priority to AU2003279807A priority Critical patent/AU2003279807A1/en
Publication of WO2004031732A2 publication Critical patent/WO2004031732A2/en
Publication of WO2004031732A3 publication Critical patent/WO2004031732A3/en

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    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
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    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
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    • C09K11/56—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing sulfur
    • C09K11/562—Chalcogenides
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    • C09K11/881—Chalcogenides
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    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
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    • C30B7/00—Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions
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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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    • C01P2004/00—Particle morphology
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    • C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
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    • C01P2004/00—Particle morphology
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    • C01P2006/37—Stability against thermal decomposition

Abstract

Dendron ligands or other branched ligands with cross-linkable groups were coordinated to colloidal inorganic nanoparticles, including nanocrystals, and substantially globally cross-linked through different strategies, such as ring-closing metathesis (RCM), dendrimer-bridging methods, and the like. This global cross-linking reaction sealed each nanocrystal within a dendron box to yield box-nanocrystals which showed dramatically enhanced stability against chemical, photochemical and thermal treatments in comparison to the non-cross-linked dendron-nanocrystals. Empty dendron boxes possessing a very narrow size distribution were formed by the dissolution of the inorganic nanocrystals contained therein upon acid or other etching treatments.
PCT/US2003/031461 2002-10-03 2003-10-03 Nanocrystals in ligand boxes exhibiting enhanced chemical, photochemical, and thermal stability, and methods of making the same WO2004031732A2 (en)

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Application Number Priority Date Filing Date Title
AU2003279807A AU2003279807A1 (en) 2002-10-03 2003-10-03 Nanocrystals in ligand boxes exhibiting enhanced chemical, photochemical, and thermal stability, and methods of making the same

Applications Claiming Priority (2)

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US41779602P 2002-10-03 2002-10-03
US60/417,796 2002-10-03

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WO2004031732A3 true WO2004031732A3 (en) 2005-04-14

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WO2004031732A2 (en) 2004-04-15
US20050004293A1 (en) 2005-01-06

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