Silica core-polystyrene shell nanoparticle synthesis and assembly in three dimensions

Sabouri, Hadi, Huang, Yun, Ohno, Kohji and Perrier, Sebastien (2015) Silica core-polystyrene shell nanoparticle synthesis and assembly in three dimensions. Nanoscale, 7 45: 19036-19046. doi:10.1039/c5nr06400g


Author Sabouri, Hadi
Huang, Yun
Ohno, Kohji
Perrier, Sebastien
Title Silica core-polystyrene shell nanoparticle synthesis and assembly in three dimensions
Journal name Nanoscale   Check publisher's open access policy
ISSN 2040-3372
2040-3364
Publication date 2015-01-01
Sub-type Article (original research)
DOI 10.1039/c5nr06400g
Volume 7
Issue 45
Start page 19036
End page 19046
Total pages 11
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Language eng
Formatted abstract
Monodisperse silica nanoparticles (SiNPs) grafted with well-defined and highly dense polystyrene brushes are used as building blocks for the formation of three-dimensional (3D) colloidal crystals. By adjusting the refractive indices and the density of the hybrid particles with those of mixed solvents, iridescent microcrystals were formed throughout the entire suspension which were characterised by confocal laser microscopy. These core–shell hybrid particles are not charged and the driving force of the crystallization relies on repulsive forces between the polymer brushes with high grafting density. The interparticle distance is correlated to Bragg's Law and can be controlled by manipulating the grafting density and the length of the polymer brushes. Finally, the uniformity of these unique core–shell particles was exploited to generate 3D assemblies by a rapid and simple process based on centrifugation.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
Australian Institute for Bioengineering and Nanotechnology Publications
 
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