Binary and Ternary Polymer-Mediated "Bricks and Mortar" Self-Assembly of Gold and Silica Nanoparticles

An amine‐functionalized polymer has been used to simultaneously assemble carboxylic acid functionalized gold and silica nanoparticles into extended aggregates. This three component assembly process is highly versatile, with aggregate morphology controlled through stoichiometry, and nanoparticle segr...

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Bibliographic Details
Published inAdvanced functional materials Vol. 11; no. 6; pp. 461 - 465
Main Authors Boal, A. K., Galow, T. H., Ilhan, F., Rotello, V. M.
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag GmbH 01.12.2001
WILEY‐VCH Verlag GmbH
Subjects
gold
Nanoparticles
Nanoparticles, gold, silica
Polymers
Self-assembly
silica
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Summary:An amine‐functionalized polymer has been used to simultaneously assemble carboxylic acid functionalized gold and silica nanoparticles into extended aggregates. This three component assembly process is highly versatile, with aggregate morphology controlled through stoichiometry, and nanoparticle segregation within the aggregate regulated through order of component addition. Extended aggregates of carboxylic acid functionalized gold and silica nanoparticles can be synthesized using an amine‐functionalized polymer as backbone component. The versatile three‐component process uses stoichiometry and order of addition to determine morphology and Au vs. Si particle distribution; see Figure for a TEM image and also inside front cover. The novel composites are suitable as stability‐enhanced, easily processable catalysts.
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ISSN:1616-301X
1616-3028
DOI:10.1002/1616-3028(200112)11:6<461::AID-ADFM461>3.0.CO;2-0