Formation of stacked luminescent complex of 8-hydroxyquinoline molecules on hydroxyapatite coating by using cold isostatic pressing

Mater Sci Eng C Mater Biol Appl. 2016 Jan 1;58:127-32. doi: 10.1016/j.msec.2015.08.020. Epub 2015 Aug 14.


Cold isostatic pressing successfully formed a chelate complex of 8-hydroxyquinoline (8 Hq) molecules on plasma-sprayed hydroxyapatite (HAp) coating by solid-state reaction. The complex emits a fluorescence peak at approximately 500 nm by UV irradiation. The red shift of the fluorescence was newly observed in the cases of highly compressed complex due to π - π stacking of aromatic ring in the molecular structure of 8 Hq. The immersed complex coating in Simulated Body Fluid (SBF) demonstrated amorphous apatite precipitation and kept its fluorescence property.

Keywords: Cold isostatic pressing (CIP); Hydroxyapatite; Luminescent materials; Solid state reaction; π – π stacking.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Coated Materials, Biocompatible / chemistry*
  • Durapatite / chemistry*
  • Luminescent Agents / chemical synthesis
  • Luminescent Agents / chemistry*
  • Oxyquinoline / chemistry*
  • Spectrometry, Fluorescence


  • Coated Materials, Biocompatible
  • Luminescent Agents
  • Oxyquinoline
  • Durapatite