Journal of Fluorescence

, Volume 15, Issue 4, pp 543–551

Water-Soluble Ln3+-Doped LaF3 Nanoparticles: Retention of Strong Luminescence and Potential as Biolabels

  • Peter R. Diamente
  • Frank C. J. M. van Veggel
Article

DOI: 10.1007/s10895-005-2827-5

Cite this article as:
Diamente, P.R. & van Veggel, F.C.J.M. J Fluoresc (2005) 15: 543. doi:10.1007/s10895-005-2827-5

Abstract

The use of optically robust, luminescent lanthanide-based particles is becoming an area of interest for biolabel-related chemistry, due to their long lifetimes and range of non-overlapping absorption and emission lines from the visible to the near-infrared. We report the synthesis and optical properties of water-soluble, luminescent Ln3+-doped nanoparticles (NPs) coordinated with a hydrophilic (RO)PO32− ligand that facilitates the stabilization of the NPs in aqueous conditions, and that regulates particle growth to the nanometer range. The use of lanthanide ions as dopants, in particular Eu3+ and Er3+ ions, yields optically robust particles with narrow emission lines in the visible (591 nm) and in the near-infrared (1530 nm), respectively. Luminescent lifetimes range from the microsecond to the millisecond for Er3+ and Eu3+ ions, respectively, and the NPs are not expected to be susceptible to photo-bleaching due to the fact that the emissions arise from intra-4f transitions of the lanthanide ions.

Keywords

Water-soluble nanoparticles strong luminescence lanthanide-doped lanthanum fluoride near-infrared emission biolabels 

Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  • Peter R. Diamente
    • 1
  • Frank C. J. M. van Veggel
    • 1
  1. 1.Department of ChemistryUniversity of VictoriaVictoriaCanada

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