Transformation of modified brushite to hydroxyapatite in aqueous solution: effects of potassium substitution

Kumar, Mukesh; Xie, Jing; Chittur, Krishnan K.; Riley, Clyde

doi:10.1016/s0142-9612(99)00043-5

Cited by 93 publications

(66 citation statements)

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“…From the curve-fitted data (data not shown), the appearance of a 1032 cm −1 peak with higher content might explain the HA reference sample having crystalline, mature and stoichiometric properties, which was similar to the other report [3]. On the other hand, the highest content of IR spectral peak at 1018 cm −1 was observed in the curve-fitted difference IR spectrum of non-calcified and calcified corneas.…”

Section: Calcified Areasupporting

confidence: 85%

Corneal calcification: chemical composition of calcified deposit

Chen

Cheng²,

Li³

et al. 2005

Graefe's Arch Clin Exp Ophthalmo

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Section: Calcified Areasupporting

confidence: 85%

Corneal calcification: chemical composition of calcified deposit

Chen

Cheng²,

Li³

et al. 2005

Graefe's Arch Clin Exp Ophthalmo

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“…The characteristic diffraction peaks of hydroxyapatite can be easily distinguished in the XRD patterns (Figure 2b) of the interlocked structure. From these results, the composition of the interlocked structure is hydroxyapatite [37], the most stable phosphate in nature [38]. Analytical results obtained using the Jade program [39] indicate that the crystallinity of the hydroxyapatite crystals is 90.727%, which is consistent with the SAED results.…”

Section: Conservation Of Sandstone Test Blockssupporting

confidence: 78%

Conservation of weathered historic sandstone with biomimetic apatite

et al. 2012

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The conservation of weathered historic sandstone with apatite was studied. Based on the growth mechanism of bone, calcium and phosphorus were introduced into weathered sandstone and then mineralized at room temperature. The conservation efficiency was investigated by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), selected area electron diffraction (SAED), X-ray diffraction (XRD), and compressive strength, capillary water uptake, water vapor permeability and weather resistance tests. The SEM, EDX, TEM, SAED and XRD results showed that the produced hydroxyapatite could reunite the weathered stone blocks and provide sufficient reinforcement to hold them together. The results of the various tests indicated that the compressive strength and weather resistance of the treated samples was improved significantly. In addition, because of the porous nature of apatite, the water vapor permeability of the treated stone was not affected and its breathability was maintained.

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“…Some implants were additionally coated with brushite (CaHPO 4 Á2H 2 O, thickness 20 lm; Bonit Ò coating, DOT GmbH, Rostock, Germany) on the PVD coating (=Ti-brushite surface implants) (see Refs. [46,47]). The fixation disks of the dumbbell implants were not coated by the above PVD or brushite procedures (see Fig.…”

Section: Metalsmentioning

confidence: 99%