Development of magnetic luminescent core/shell nanocomplex particles with fluorescence using Rhodamine 6G

Hee Uk Lee, Yoon Seok Song, Chulhwan Park, Seung Wook Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A simple and reproducible method was developed to synthesize a novel class of Co-B/SiO 2/dye/SiO 2 composite core/shell particles. Using a single cobalt core, Rhodamine 6G of organic dye molecules was entrapped in a silica shell, resulting in core/shell particles of ∼200 nm diameter. Analyses using a variety of techniques such as transmission electron microscopy, X-ray photoelectron spectroscopy, vibration sample magnetometry, confocal laser scanning microscopy, and fluorescence intensity demonstrated that dye molecules were trapped inside the core/shell particles. A photoluminescence investigation showed that highly luminescent and photostable core/shell particles were formed. Such core/shell particles can be easily suspended in water. The synthesized magnetic particles could be used to detect fluorescence on glass substrate arrays for bioassay and biosensor applications.

Original languageEnglish
Pages (from-to)4101-4106
Number of pages6
JournalMaterials Research Bulletin
Volume47
Issue number12
DOIs
Publication statusPublished - 2012 Dec

Keywords

  • A. Magnetic materials
  • B. Sol-gel chemistry
  • D. Luminescence

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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