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Can I read Aqueous Formation of Hydroxyapatite on EtoBox?
Aqueous Formation of Hydroxyapatite by Roger I. Martin; Paul W. Brown is a Medicine article available to read on EtoBox.
What is Aqueous Formation of Hydroxyapatite about?
The kinetics of stoichiometric (Ca/P = 1.67) and calcium-deficient (Ca/P = 1.5) hydroxyapatite formed in aqueous solution by acid-base reactions involving CaHPO4 and Ca4(PO4)2O were determined. Complete reaction occurs within 6 h at 37.4 degrees C regardless of composition with stoichiometric hydroxyapatite forming more rapidly. Stoichiometric hydroxyapatite formed more rapidly because the particle sizes of its precursors were smaller. Hydroxyapatite formation is characterized by an initial period of surface hydration of the precursors, an induction period, and a period during which the bulk of the conversion to hydroxyapatite occurs. During the first 3 h of reaction at 37.4 degrees C, the pH is about 8.25 and 7.6, respectively, as the stoichiometric and calcium-deficient hydroxyapatite are being formed. Subsequently the pH values move toward those of the related invariant points: Ca10(PO4)6(OH)2-Ca(OH)2 solution, and CaHPO4-Ca9HPO4(PO4)5OH solution. The concentrations of calcium and phosphate in solution never exceed those in serum. Seeding with 5 wt% hydroxyapatite eliminates induction regardless of composition. The kinetics are first-order and follow the Arrhenius relationship r
Who reads Aqueous Formation of Hydroxyapatite?
It is typically read by researchers, students, and practitioners in Medicine.
- Author
- Roger I. Martin; Paul W. Brown
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); Heterocorporation; Wiley (ISSN 0021-9304)
- Published
- 1997
- Language
- EN
- Field
- Medicine (Health Sciences)