Characterization of electron beam deposited Nb<sub>2</sub>O<sub>5</sub> coatings for biomedical applications.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 32090911.
- Also identified by DOI 10.1016/j.jmbbm.2019.103582.
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Abstract
Niobium oxide coatings deposited on Ti<sub>6</sub>Al<sub>4</sub>V substrates by electron beam deposition and annealed in air at 600 °C and 800 °C were evaluated for their suitability towards dental, maxillofacial or orthopaedic implant applications. A detailed physico-chemical properties investigation was carried out in order to determine their elemental and phase composition, surface morphology and roughness, mechanical properties, wettability, and corrosion resistance in simulated body fluid solution (pH = 7.4) at room temperature. The biocompatibility of the bare Ti<sub>6</sub>Al<sub>4</sub>V substrate and coated surfaces was evaluated by testing the cellular adhesion and viability/proliferation of human osteosarcoma cells (MG-63) after 72 h of incubation. The coatings annealed at 800 °C exhibit more phase pure nanocrystalline Nb<sub>2</sub>O<sub>5</sub> surfaces with enhanced wettability, reduced porosity and enhanced corrosion resistance properties making them good candidate for dental, maxillofacial or orthopaedic implant applications.
Medical subject headings
- Coated Materials, Biocompatible
- Niobium