Investigations into the cytotoxicity of titania ceramics surfaces

Blum, J.; Eckert, K; Schroeder, A.; Petitmermet, M.; Ha, Suk-Woo; Wintermantel, E.

doi:10.1515/bmte.1996.41.s1.432

Cited by 1 publication

(1 citation statement)

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“…[10][11][12][13] Thin films of titania coating on 316L SS possess combined advantages of biocompatibility and corrosion-resistant properties. [14] Moreover, it is recognized that silica-based solgel systems usually have a high content of surface silanol groups, which have been reported to promote in vitro and in vivo nucleation of apatite. [15] In this paper, we propose a strategy for obtaining different morphological HAP coatings containing TiO 2 and/or SiO 2 oxides ceramic materials.…”

Section: Introductionmentioning

confidence: 99%

Morphological and Mechanical Properties of Hydroxyapatite Bilayer Coatings Deposited on 316L SS by Sol–Gel Method

Sidane

Khireddine

Yala

et al. 2015

Metall Mater Trans B

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The present paper reports on the influence of the addition of TiO 2 and SiO 2 oxides as sub-layer, on the morphological and mechanical properties of the hydroxyapatite (HAP) bioceramic coatings deposited on 316L stainless steel by sol-gel method in order to improve the properties of hydroxyapatite and expand its clinical application. The stability of the sols suspensions was evaluated by measuring the time dependence of the viscosity. Annealed properties of the coatings were analyzed by XPS, XRD, SEM, and EDS. The Vickers microhardness of the coatings is obtained under the same indentation load of 10 g. The hydroxyapatite coating deposited on the surface of the 316L SS substrate exhibits a porous carbonated apatitic structure. The results clearly demonstrate that HAP-TiO 2 and HAP-SiO 2 bilayer coatings where hydroxyapatite is deposited on the surface of TiO 2 -and SiO 2 -coated 316L SS substrate systems were highly homogeneous and uniform and show higher microhardness compared to HAPcoated 316L SS. A gap of nearly 10 pct is observed. The addition of TiO 2 and SiO 2 as sub-layer of a hydroxyapatite coating results in changes in surface morphology as well as an increase of the microhardness.

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