![]() ![]() 2009 30(32):6403–6.īoivin G, Deloffre P, Perrat B, Panczer G, Boudeulle M, Mauras Y, et al. Silicon-substituted calcium phosphates – a critical view. Mechano-tribological properties and in vitro bioactivity of biphasic calcium phosphate coating on Ti-6Al-4V. 2020.īehera RR, Das A, Pamu D, Pandey LM, Sankar MR. Role of strontium substitution in spray drying of hydroxyapatite: a comparative study on physical properties. Deposition of crystalline hydroxyapatite nano-particle on zirconia ceramic: a potential solution for the poor bonding characteristic of zirconia ceramics to resin cement. ![]() Strontium doped hydroxyapatite biomimetic coatings on Ti6Al4V plates. Synthesis of nano-hydroxyapatite sorbent for microextraction in packed syringe of phthalate esters in water samples. ![]() Sr containing hydroxyapatite: morphologies of HA crystals and bioactivity on osteoblast cells. Biocompatibility and bioactivity of Sr-HA thin films deposited on titanium were confirmed in an interaction with dental pulp stem cells, suggesting that these coatings, regardless of the processing temperature, may be viable candidates for the surface components of metallic bone implants.Īina V, Bergandi L, Lusvardi G, Malavasi G, Imrie FE, Gibson IR, et al. As the film deposition temperature increased, the lattice voids got reduced in concentration and the structure gradually “closed,” becoming more compact and entailing a linear increase in microhardness with temperature, by 0.03 GPa/☌ for the entire 25–500 ☌ range. Despite the mostly amorphous structure of the coatings, their affinity for capturing atmospheric carbon dioxide and accommodating it as carbonate ions that replace both phosphates and hydroxyls of HA was confirmed in an X-ray photoelectron spectroscopic analysis. Particle edges became somewhat sharper and surface roughness moderately increased with temperature, but the (Ca+Sr)/P atomic ratio, which increased 1.5 times during the film formation, remained approximately constant at different temperatures. Highly crystalline Sr-HA target transformed during pulsed laser deposition to a fully amorphous film, whose degree of long-range order recovered with temperature. The films were 1–2 μm in thickness and their formation was studied at different temperatures, including 25, 300, and 500 ☌. The method is based on the combination of a mechanochemical synthesis of Sr-HA targets and their deposition in form of thin films on top of titanium with the use of laser ablation at low pressure. A new method for producing thin strontium-containing hydroxyapatite (Sr-HA, Ca 9Sr(PO 4) 6(OH) 2) films as coatings that render bioinert titanium implant bioactive is reported here. The interest in strontium cation in bone therapies soared in the wake of the success of strontium ranelate in the treatment of osteoporosis. Substituting small molecule drugs with abundant and easily affordable ions may have positive effects on the way countless disease treatments are approached. ![]()
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