Formation of Biomimetic Hydroxyapatite Coating on Titanium Plates

  • Ievgen Volodymyrovych PYLYPCHUK Chuiko institute of surface chemistry National Academy of sciences of Ukraine
  • Alla Leonidivna PETRANOVSKA Chuiko institute of surface chemistry National Academy of sciences of Ukraine
  • Margaryta Petrivna TURELYK Chuiko institute of surface chemistry National Academy of sciences of Ukraine
  • Petro Petrovych GORBYK Chuiko institute of surface chemistry National Academy of sciences of Ukraine
Keywords: biomimetic hydroxyapatite, titanium plates, surface modification

Abstract

Hydroxyapatite (HA) has long been used as a coating material in the implant industry for orthopedic implant applications. HA is the natural inorganic constituent of bone and teeth. By coating titanium (base material of implant engineering because of its lightness and durability) with hydroxyapatite, we can provide higher biocompatibility of titanium implants, according to HA ability to form a direct biochemical bond with living tissues. This article reports a biomimetic approach for coating hydroxyapatite with titanium A method of modifying the surface of titanium by organic modifiers (for creating functional groups on the surface), followed by formation "self-assembled" layer of biomimetic hydroxyapatite in simulated body fluid (SBF). FTIR and XPS confirmed the formation of hydroxyapatite coatings on titanium surface. Comparative study of the formation of HA on the surface of titanium plates modified by different functional groups: Ti(≡OH), Ti/(≡Si-OH) and Ti/(≡COOH) is conducted. It was found that the closest to natural stoichiometric hydroxyapatite Ca/P ratio was obtained on Ti/(≡COOH) samples.

DOI: http://dx.doi.org/10.5755/j01.ms.20.3.4974

Author Biographies

Ievgen Volodymyrovych PYLYPCHUK, Chuiko institute of surface chemistry National Academy of sciences of Ukraine
junior researcher, departmet of nanomaterials
Alla Leonidivna PETRANOVSKA, Chuiko institute of surface chemistry National Academy of sciences of Ukraine
PhD (chemistry)
junior researcher, departmet of nanomaterials
Margaryta Petrivna TURELYK, Chuiko institute of surface chemistry National Academy of sciences of Ukraine
researcher, departmet of nanomaterials
Petro Petrovych GORBYK, Chuiko institute of surface chemistry National Academy of sciences of Ukraine
Dr. Sci (phys.), prof., head of department
Published
2014-09-17
Section
CERAMICS AND GLASSES