Роль метода электрофоретического осаждения в создании биокомпозита на основе слоев гидроксиапатити и наночастиц серебра

Abstract

In this work, multifunctional three-layered biocomposite on the basis of hydroxyapatite coatings and silver nanoparticles has been fabricated through the use of nanofabrication techniques. Radio-frequency magnetron sputtering was used to prepare the first and third layers of hydroxyapatite coating on titanium and on silver nanoparticles, respectively. Electrophoretic deposition method was used to prepare the antibacterial layer of silver nanoparticles. Poly(vinylpyrrolidone) (PVP)-stabilized silver nanoparticles (AgNPs) had a spherical shape with a diameter of the metallic core of 70±20 nm and ζ -potential -20 mV. The diffraction patterns of the biocomposites revealed the peaks of crystalline HA and metallic silver (Ag). XRD patterns revealed that the AgNPs are crystalline with the crystallite size of appr. 14 nm.