Aerosol-Assisted Self-Assembly of Mesostructured Spherical Nanoparticles

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Description

Nanostructured particles exhibiting well-defined pore sizes and pore connectivities (1-, 2-, or 3-dimensional) are of interest for catalysis, chromatography, controlled release, low dielectric constant fillers, and custom-designed pigments and optical hosts. During the last several years considerable progress has been made on controlling the macroscopic forms of mesoporous silicas prepared by surfactant and block copolymer liquid crystalline templating procedures. Typically interfacial phenomena are used to control the macroscopic form (particles, fibers, or films), while self-assembly of amphiphilic surfactants or polymers is used to control the mesostructure. To date, although a variety of spherical or nearly-spherical particles have been prepared, their ... continued below

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18 p.

Creation Information

Brinker, C.J.; Fan,; H.; Lu, Y.; Rieker, T.; Stump, A. et al. March 23, 1999.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 128 times , with 7 in the last month . More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA
    Place of Publication: Albuquerque, New Mexico

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Description

Nanostructured particles exhibiting well-defined pore sizes and pore connectivities (1-, 2-, or 3-dimensional) are of interest for catalysis, chromatography, controlled release, low dielectric constant fillers, and custom-designed pigments and optical hosts. During the last several years considerable progress has been made on controlling the macroscopic forms of mesoporous silicas prepared by surfactant and block copolymer liquid crystalline templating procedures. Typically interfacial phenomena are used to control the macroscopic form (particles, fibers, or films), while self-assembly of amphiphilic surfactants or polymers is used to control the mesostructure. To date, although a variety of spherical or nearly-spherical particles have been prepared, their extent of order is limited as is the range of attainable mesostructures. They report a rapid, aerosol process that results in solid, completely ordered spherical particles with stable hexagonal, cubic, or vesicular mesostructures. The process relies on evaporation-induced interfacial self-assembly (EISA) confined to a spherical aerosol droplet. The process is simple and generalizable to a variety of materials combinations. Additionally, it can be modified to provide the first aerosol route to the formation of ordered mesostructured films.

Physical Description

18 p.

Notes

OSTI as DE00005005

Medium: P; Size: 18 pages

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  • Journal Name: (505)845-8220; Other Information: No journal information given for this preprint

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  • Report No.: SAND99-0705J
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 5005
  • Archival Resource Key: ark:/67531/metadc678081

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • March 23, 1999

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • April 7, 2017, 4:05 p.m.

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Brinker, C.J.; Fan,; H.; Lu, Y.; Rieker, T.; Stump, A. et al. Aerosol-Assisted Self-Assembly of Mesostructured Spherical Nanoparticles, article, March 23, 1999; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc678081/: accessed August 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.