Preparation of Janus silica particles with organo-silane compounds using polystyrene trapping layer

Chang Hun Lee, Wonkeun Chung, Hyunchul Jung, Joong Yeon Kim, Jeong Hwan Chun, Sung Hyun Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)


In this study, the Janus silica particles were prepared by grafting reaction based on the sol-gel method. Before the surface modification reaction, the silica particles were trapped in the PS layer and some fraction of their surface were only reacted with APTES. XPS analysis confirmed that the nitrogen compounds were introduced on the surface of the Janus particles, and the curve fitting of nitrogen confirmed that the compounds were the amine groups. From the result of SEM analysis, there were no differences in the size and the surface morphology and no formation of the APTES clusters. Based on these results, it was confirmed that the Janus silica particles were prepared using PS trapping layer.

Original languageEnglish
Pages (from-to)7990-7994
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Issue number10
Publication statusPublished - 2014



  • Janus silica particle
  • Sol-gel method
  • Surface modification
  • Trapping layer

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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