A comparative study of two coating methods on titanium (Ti) substrates, sol-gel and electrophoresis processes, was performed. Before coating, two different surface treatments were employed. The hydroxyapatite (HA) powder were characterized by infrared spectroscopy (FTIR) and X-ray diffraction (XRD) while coated samples were examined by using scanning electron microscopy (SEM) with energy disper...

Promoting and understanding the formation of hydroxyapatite on biocompatible metals in the body is a very important topic of biomaterials research. In this paper, the formation of hydroxyapatite on a near-β Ti-13Nb-13Zr alloy by immersion in minimal essential medium (MEM) with and without the addition of H2O2 has been studied using electrochemical methods, SEM and XPS. The Ti-13Nb-13Zr alloy ex...

The bioactivity and the corrosion protection for a novel nano-grained Ti-20Nb-13Zr at % alloy were examined in a simulated body fluid (SBF). The effect of the SPS's temperature on the corrosion performance was investigated. The phases and microstructural details of the developed alloy were analyzed by XRD (X-ray Diffraction), SEM (Scanning Electron Microscopy), and TEM (Transmission Electron Mi...

The aim of this study was to assess the biological and antibacterial properties composite coatings on titanium surfaces modified by microarc oxidation sol-gel processing. A layer hydroxyapatite (HA) with different concentrations zinc (Zn) ions, prepared method, coated oxidized Ti (MAO-Ti) substrates. Five groups specimens were tested. microstructures, elemental compositions, chemical phases inv...

In previous studies, we have demonstrated a fibrocartilaginous membrane around hydroxyapatite-coated implants subjected to micromovement in contrast to the fibrous connective tissue which predominates around similarly loaded titanium alloy implants. In the present study, in mature dogs, we investigated the effect of immobilising titanium (Ti)- or hydroxyapatite (HA)-coated implants already surr...

Abstract Objective We developed a silver-containing hydroxyapatite (Ag-HA) coating to prevent periprosthetic joint infection (PJI). Methicillin-resistant Staphylococcus aureus (MRSA) is the main PJI-causing bacteria. Previously, we had reported combined effect of Ag-HA and vancomycin (VCM) on MRSA biofilm formation 24 h after inoculation. In this study, investigated time-dependent efficacy VCM ...

The basic calcium phosphate mineral, hydroxyapatite (HAP) (Ca10(PO4)6(OH)2)), is the prototype of one of the major constituents of bone and teeth. Thin layers of HAP were coated on the surface of type 316L stainless steel by electrophoretic deposition (EPD) from a 2.5% suspension in isopropyl alcohol, and this was followed by vacuum sintering at 800uC for 1 h. The development of HAP coatings wa...

As an alternative technique for calcium phosphate coating on titanium alloys, we propose to functionalize the metal surface with anionic bath containing chlorides of palladium or silver as activators. This new deposition route has several advantages such as controlled conditions, applicability to complex shapes, no adverse effect of heating, and cost effectiveness. A mixture of hydroxyapatite a...

Titanium powders and hydroxyapatite were used to fabricate the titanium composite coating (Ti/Ti/HA) on Polyetheretherketone (PEEK) by vacuum plasma spraying (VPS). The phase composition morphology of Ti/Ti/HA analyzed XRD, SEM, industrial CT, three-dimensional contour profiler (DEKTAK XT). results showed that was dominated HA a small amount Ti phase. presented an obvious three-layer structure ...