Remarkable enhancement of upconversion fluorescence and confocal imaging of PMMA Opal/NaYF(4):Yb(3+), Tm(3+)/Er(3+) nanocrystals

Chem Commun (Camb). 2013 May 8;49(36):3781-3. doi: 10.1039/c3cc40829a. Epub 2013 Mar 28.

Abstract

Novel PMMA opal photonic crystal/NaYF(4):Yb(3+), Tm(3+)/Er(3+) nanocrystal composites were fabricated and tremendous improvement in upconversion luminescence (UCL) was observed under infrared 980 nm excitation. They were also explored to improve brightness of cell images.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Line, Tumor
  • Europium / chemistry*
  • Fluorides / chemistry*
  • Humans
  • Metal Nanoparticles / chemistry*
  • Metal Nanoparticles / ultrastructure
  • Microscopy, Confocal
  • Polymethyl Methacrylate / chemistry*
  • Spectrophotometry, Infrared
  • Thulium / chemistry*
  • Ytterbium / chemistry*
  • Yttrium / chemistry*

Substances

  • sodium yttriumtetrafluoride
  • Europium
  • Yttrium
  • Thulium
  • Polymethyl Methacrylate
  • Ytterbium
  • Fluorides