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

Young Sang Cho, Gi Ra Yi, Shin Hyun Kim, Seog Jin Jeon, Mark T. Elsesser, Hyung Kyun Yu, Seung Man Yang, David J. Pine

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)3183-3193
Number of pages11
JournalChemistry of Materials
Volume19
Issue number13
DOIs
StatePublished - Jun 26 2007

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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    Cho, Y. S., Yi, G. R., Kim, S. H., Jeon, S. J., Elsesser, M. T., Yu, H. K., Yang, S. M., & Pine, D. J. (2007). Particles with coordinated patches or windows from oil-in-water emulsions. Chemistry of Materials, 19(13), 3183-3193. https://doi.org/10.1021/cm070051w