Layered double hydroxide nanoparticles incorporating terbium: Applicability as a fluorescent probe and morphology modifier

Anthony W. Musumeci, Zhi Ping Xu, Suzanne V. Smith, Rodney F. Minchin, Darren J. Martin

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

Stable and non-invasive fluorescent probes for nanotoxicological investigations are greatly needed to track the fate of nanoparticles in biological systems. The potential for terbium (Tb) to act as a fluorescent probe and its effect on layered double hydroxide (LDH) nanoparticle morphology are presented in this study. Incorporation of Tb during synthesis offers a simple methodology to easily tailor LDH nanoparticle thickness. A three-fold reduction in the average crystallite thickness (from 13 to 4 nm) has been achieved, whilst preferential lateral growth of LDH nanoparticles in the a-b crystal plane has been observed with increasing Tb loadings. Remarkably, Tb-LDH nanoparticles have emitted green fluorescence with a fluorescence quantum yield of 0.044.

Original languageEnglish
Pages (from-to)111-120
Number of pages10
JournalJournal of Nanoparticle Research
Volume12
Issue number1
DOIs
Publication statusPublished or Issued - Jan 2010
Externally publishedYes

Keywords

  • Fluorescent nanoparticles
  • Instrumentation
  • Layered double hydroxide
  • Morphology modification
  • Visualization

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics

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