Dual-emitting nanocomposites derived from rare-earth compound nanotubes for ratiometric fluorescence sensing applications

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Tian-Ying Sun
  • Da-Quan Zhang
  • Xue-Feng Yu
  • Yang Xiang
  • Min Luo
  • Jia-Hong Wang
  • Guo-Long Tan
  • Qu-Quan Wang

Detail(s)

Original languageEnglish
Pages (from-to)1629-1637
Journal / PublicationNanoscale
Volume5
Issue number4
Publication statusPublished - 21 Feb 2013

Abstract

A new class of ratiometric fluorescence sensors composed of rare-earth (RE) compound nanotubes is described. Polyethylenimine-coated yttrium hydroxide fluoride nanotubes (YHF NTs) that were synthesized hydrothermally exhibit highly efficient fluorescence when doped with RE ions. The polyethylenimine on the NTs facilitates the incorporation of phosphors such as quantum dots or organic dyes onto the NT surface to produce dual-emitting nanocomposites which are excellent ratiometric fluorescence sensors. The phosphor layer and underlying tubes in the nanocomposites act as the indicator and reference probes, respectively. This ratiometric fluorescence method which can be applied to the detection of heavy metals in solutions, temperature sensing, and pH sensing boasts high sensitivity and selectivity as well as better accuracy than traditional intensity-based fluorescence methods. © 2013 The Royal Society of Chemistry.

Citation Format(s)

Dual-emitting nanocomposites derived from rare-earth compound nanotubes for ratiometric fluorescence sensing applications. / Sun, Tian-Ying; Zhang, Da-Quan; Yu, Xue-Feng et al.
In: Nanoscale, Vol. 5, No. 4, 21.02.2013, p. 1629-1637.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review