Comprehensive Characteristic of Plasma-Sprayed Coatings of Silver- and Copper-Substituted Hydroxyapatites

A.V.Lyasnikova,
 
O.A.Markelova,
 
O.A.Dudareva,
 
V.N.Lyasnikov,
 
A.P.Barabash,
 
S.P.Shpinyak
 

Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2016, #05/06
http://www.materials.kiev.ua/article/2195

Abstract

The physicochemical and biomedical properties of biocomposite plasma-sprayed coatings from silver- and copper-substituted hydroxyapatite powders on a titanium substrate are comprehensively studied and compared. Infrared spectroscopy revealed that powder samples of all types correspond mainly to synthetic hydroxyapatite. Scanning electron microscopy confirmed the presence of metal-substituted hydroxyapatite nanoparticles in all coatings. It is proved that the coatings are characterized by marked hydrophilic properties, the greatest ones being shown by silver-substituted hydroxyapatite coatings. The coatings formed from copper-substituted hydroxyapatites exhibit greater biological activity and the highest adhesion properties but pronounced antimicrobial properties are possessed only by silver-substituted hydroxyapatite coatings.


BIOCOMPATIBILITY, PLASMA SPRAYING, SUBSTITUTED HYDROXYAPATITE