Monica Popa (Avtor), Cora Vasilescu (Avtor), Silviu Iulian Drob (Avtor), Julija Hmeljak (Avtor), Andrej Cör (Avtor), Jose Maria Calderon Moreno (Avtor)

Povzetek

In this paper, we applied on the surface of the new Ti%20Nb%10Zr%5Ta alloy nano-crystalline hydroxyapatite (HA) coating by the method of the chemical deposition in a solution supersaturated with Ca2+ and inline image ions. The composition and crystallinity of the obtained coating was determined by X-ray diffraction, micro-Raman, infrared, and energy dispersive X-ray spectroscopies and its morphology and porosity by scanning electron microscopy. The coating long-term corrosion behavior for 3000 soaking hours in simulated human fluids (Ringer's solutions of different pH values) was studied by cyclic potentiodynamic and linear polarization, electrochemical impedance spectroscopy and monitoring of the open circuit potentials and corresponding open circuit potential gradient due to the pH non-uniformity of the biofluid. Also, the coating biocompatibility was performed by cells (human osteoblast % HOS and human immortalized pulmonary fibroblast % Wi-38) adhesion and proliferation testing in the HA coated bioalloy extract compared to respective effects of the un-coated bioalloy extract. The initial HA nano-coating promoted the deposition of new HA layers, thickening itself and showing its ability to induce the formation of this main inorganic component of the human bone, therefore denoting bioactivity of the HA nano-coated alloy.

Ključne besede

bioactive hydroxyapatite;corrosion behavior;EDX;FT-IR;Raman micro-spectroscopy;SEM;XRD;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UP FVZ - Fakulteta za vede o zdravju
UDK: 620.1/2
COBISS: 1537553092 Povezava se bo odprla v novem oknu
ISSN: 0947-5117
Št. ogledov: 3749
Št. prenosov: 209
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Neznan jezik
Vrsta dela (COBISS): Delo ni kategorizirano
Strani: str. 562-572
Letnik: ǂVol. ǂ66
Zvezek: ǂiss. ǂ6
Čas izdaje: June 2015
DOI: 10.1002/maco.201307572
ID: 9142631