The fluorescence of Mg-Al-Eu ternary layered hydroxides response to tryptophan

Luminescence. 2012 May-Jun;27(3):223-8. doi: 10.1002/bio.1337. Epub 2011 Sep 1.

Abstract

We have studied the fluorescence of Mg-Al-Eu ternary layered hydroxides (TLH) quenched by tryptophan (Trp). IR spectroscopy was used to evaluate the change of Trp structure which was caused by TLH. XRD and TG-DTA results further suggested a structural change of Trp after being reacted with TLH. XPS characterization confirmed a strong chemical reaction between Trp and TLH. These studies may present more direct evidence to explain the interrelation between the structural change of Trp and the fluorescent quenching of TLH.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aluminum / chemistry*
  • Europium / chemistry*
  • Fluorescence*
  • Hydroxides / chemistry*
  • Magnesium / chemistry*
  • Spectrophotometry
  • Spectroscopy, Fourier Transform Infrared
  • Temperature
  • Thermogravimetry
  • Tryptophan / analysis*
  • X-Rays

Substances

  • Hydroxides
  • Europium
  • Tryptophan
  • Aluminum
  • Magnesium