Hydroxyapatite powder used for rapid prototyping in medical engineering

Ott, Alexander; Irlinger, Franz

doi:10.1504/ijcat.2009.026668

Cited by 3 publications

(2 citation statements)

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“…In the past few decades, calcium orthophosphates as well as different forms of substituted hydroxyapatite have been widely studied in connection with their use in medicine as coatings on implants, biocompatible ceramics, dental materials, and components of drugs and cosmetics. [6][7][8][9] One of the substitutes in the HA anion sublattice is the SiO 4 4-ion. Silicon was determined to be one of the elements that is necessary for the correct functionality of the connective and bone tissues of animals.…”

Section: Introductionmentioning

confidence: 99%

“…The contents of the substitutes range from 0.01 wt.‐% to several wt.‐%. In the past few decades, calcium orthophosphates as well as different forms of substituted hydroxyapatite have been widely studied in connection with their use in medicine as coatings on implants, biocompatible ceramics, dental materials, and components of drugs and cosmetics 6–9…”

Section: Introductionmentioning

confidence: 99%

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Mechanochemical Synthesis of SiO₄^4–‐Substituted Hydroxyapatite, Part I – Kinetics of Interaction between the Components

et al. 2014

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The kinetics of the room‐temperature dry mechanochemical synthesis of hydroxyapatite modified by SiO44– ions has been studied for the first time. The changes in the composition of the reaction mixture as a function of the time of mechanical activation in a planetary ball mill as well as the composition of the final product have been investigated by X‐ray phase analysis and IR spectroscopy. Certain stages of the interaction of the reactants have been analyzed with the help of high‐resolution electron microscopy. The mechanochemical synthesis conducted in air is accompanied by the incorporation of carbonate ions into the apatite lattice, which results in the formation of B‐type carbonated hydroxyapatite. The apatite structure starts to form after 5 min of mechanochemical activation of the reaction mixture, and the final single‐phase nanocrystalline powder of silicate‐substituted carbonated hydroxyapatite is formed after 30 min of activation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanochemical Synthesis of SiO₄^4–‐Substituted Hydroxyapatite, Part I – Kinetics of Interaction between the Components

et al. 2014

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Mechanochemical Synthesis of SiO₄^4–‐Substituted Hydroxyapatite, Part II – Reaction Mechanism, Structure, and Substitution Limit

et al. 2014

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For the first time, silicate‐substituted hydroxyapatites have been prepared from mixtures containing different amounts of silicon (0.2–2 mol per mol of apatite unit cell) by dry mechanochemical synthesis at room temperature in a planetary ball mill. The XRD, FTIR, TEM, and NMR spectroscopic data show that the product of the mechanochemical synthesis is a single‐phase nanocrystalline apatite containing different amounts of carbonate and silicate ions and adsorbed water. In the annealed samples, three silicon concentration subranges can be distinguished, each of which is characterized by specific evolution of the lattice parameters. The formation mechanism of the silicate‐substituted hydroxyapatite obtainable by this method is discussed. The studies indicate that the silicon substitution limit in the silicate‐substituted lattice achievable by the dry mechanochemical synthesis followed by heat treatment is 1.2 mol per mol of apatite unit cell.

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Surface structure changes on aluminosilicate microspheres at the interface with simulated body fluid

Todea¹,

Frentiu²,

Turcu³

et al. 2012

Corrosion Science

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Hydroxyapatite powder used for rapid prototyping in medical engineering

Cited by 3 publications

References 5 publications

Mechanochemical Synthesis of SiO₄^4–‐Substituted Hydroxyapatite, Part I – Kinetics of Interaction between the Components

Mechanochemical Synthesis of SiO₄^4–‐Substituted Hydroxyapatite, Part I – Kinetics of Interaction between the Components

Mechanochemical Synthesis of SiO₄^4–‐Substituted Hydroxyapatite, Part II – Reaction Mechanism, Structure, and Substitution Limit

Surface structure changes on aluminosilicate microspheres at the interface with simulated body fluid

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Hydroxyapatite powder used for rapid prototyping in medical engineering

Cited by 3 publications

References 5 publications

Mechanochemical Synthesis of SiO44–‐Substituted Hydroxyapatite, Part I – Kinetics of Interaction between the Components

Mechanochemical Synthesis of SiO44–‐Substituted Hydroxyapatite, Part I – Kinetics of Interaction between the Components

Mechanochemical Synthesis of SiO44–‐Substituted Hydroxyapatite, Part II – Reaction Mechanism, Structure, and Substitution Limit

Surface structure changes on aluminosilicate microspheres at the interface with simulated body fluid

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Mechanochemical Synthesis of SiO₄^4–‐Substituted Hydroxyapatite, Part I – Kinetics of Interaction between the Components

Mechanochemical Synthesis of SiO₄^4–‐Substituted Hydroxyapatite, Part I – Kinetics of Interaction between the Components

Mechanochemical Synthesis of SiO₄^4–‐Substituted Hydroxyapatite, Part II – Reaction Mechanism, Structure, and Substitution Limit