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Enriched encapsulation and fluorescence enhancement of europium complexes in microcapsules

Journal of Materials Chemistry, ISSN: 0959-9428, Vol: 19, Issue: 10, Page: 1458-1463
2009
  • 10
    Citations
  • 0
    Usage
  • 7
    Captures
  • 0
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Metrics Details

  • Citations
    10
    • Citation Indexes
      10
  • Captures
    7

Article Description

Microcapsules with an average diameter of 3.3 m are obtained through the layer-by-layer (LbL) self-assembly technique by using MnCO microparticles with voids and pores as the template core. MnCO enriches the electrically neutral europium complex Eu(DBM)Phen (DBM = dibenzoylmethane, Phen = 1,10-phenanthroline) both in the shell and inside the microcapsules. About 6 times more intense fluorescence emission is thus observed for microcapsules from MnCO compared to those obtained from a melamine formaldehyde (MF) core. The microcapsules exhibit two characteristic fluorescence peaks of the europium complexes at 596 and 612 nm, the latter sharp peak encompasses high monochromaticity. The assembly of fluorescence-enhanced microcapsules with Eu(DBM)Phen show a new concept to enrich functional molecules by the LbL technique and has application potential in simultaneous multicolor bioassays. © 2009 The Royal Society of Chemistry.

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