A Novel Approach for Accelerated Fabrication of Calcium Hydroxyapatite Thin Films

  • Pranas USINSKAS
  • Živilė STANKEVIČIŪTĖ
  • Gediminas NIAURA
  • Justinas ČEPONKUS
  • Aivaras KAREIVA
Keywords: hydroxyapatite, sol–gel, dip–coating, thin film

Abstract

In this study we demonstrate, that sol–gel route is suitable to quicker obtain calcium hydroxyapatite (Ca10(PO4)6(OH)2, CHAp) coatings on crystalline Si substrate by modified dip-coating technique. The substrate was dip-coated by precursor and dried for 10 minutes at 200 °C with following cooling using the heating block for 110 min and annealing at 650 °C. Ethylendiamintetraacetic acid and 1,2-ethandiol, and triethanolamine and polyvinyl alcohol were used as complexing agents and as gel network forming agents, respectively. The obtained coatings were characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), FTIR spectroscopy and contact angle measurements (CAM).

Published
2019-06-27
Section
BIOACTIVE MATERIALS