Particles with coordinated patches or windows from oil-in-water emulsions

In this paper, we demonstrated a unique and simple method for fabricating colloidal particles of complex structures using oil-in-water emulsion droplets as confined geometries. A variety of structural motifs were produced using binary colloids of microspheres of polystyrene (PS) or silica and nanosized particles as the second component. When PS or silica microspheres and PS macromolecules were dispersed in oil-in-water emulsion droplets, particles with well-coordinated patches were obtained because the PS macromolecules partially covered the microsphere clusters. When silica or gold nanoparticles were dispersed together with the PS microspheres in oil-in-water emulsion droplets instead of PS macromolecules, composite particles with patches were obtained. In this case, silica or gold shell structures with well-coordinated windows were produced by selectively removing the large PS microspheres from the organic-inorganic composite clusters.
Publisher
AMER CHEMICAL SOC
Issue Date
2007-06
Language
ENG
Keywords

LINKED POLYMER PARTICLES; DYNAMIC SWELLING METHOD; COLLOIDAL PARTICLES; GOLD NANOPARTICLES; MONODISPERSE; CRYSTALLIZATION; MICROSPHERES; ASSEMBLIES; SCATTERING; CLUSTERS

Citation

CHEMISTRY OF MATERIALS, v.19, no.13, pp.3183 - 3193

ISSN
0897-4756
DOI
10.1021/cm070051w
URI
http://hdl.handle.net/10203/12863
Appears in Collection
CBE-Journal Papers(저널논문)CBE-Journal Papers(저널논문)
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