Controllable synthesis of tricalcium phosphate (TCP) polymorphs by wet precipitation: Effect of washing procedure

Sinušaitė, Lauryna; Grigoravičiūtė-Puronienė, Inga; Popov, Anton; Ishikawa, Kunio; Kareiva, Aivaras; Žarkov, Aleksej

doi:10.1016/j.ceramint.2019.03.174

Cited by 40 publications

(14 citation statements)

References 50 publications

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“…The sharp peak at 3643 cm −1 , belonging to the stretching vibration motion of the

groups, was observed for all heat-treated samples. The bond regions of

groups at 611–540 cm −1 and 1139–944 cm −1 were also observed in all heat-treated samples, as were the asymmetrical stretching bands ν3 (1139 cm −1 ), the symmetric stretching bands ν1 (944 cm −1 ), and the bending bands ν4 (611, 586 and 543 cm −1 ), which were related to

groups of β-TCP [ 13 , 29 ]. All samples also presented the asymmetrical P-O stretching mode (ν3) at 1086 cm −1 , the asymmetrical bending modes (ν4) at 600 and 568 cm −1 , and the symmetric stretching modes at 962 (ν1) and 474 (ν2) cm −1 , which are distinguishable peaks in the

groups of crystalline HAp [ 18 ].…”

Section: Resultsmentioning

confidence: 96%

“…The diffraction peaks of CaP-based mixtures were overlapped because of the similar chemical structures. Therefore, the vibrational spectroscopies helped characterize vibrations for these materials’ amorphous species or crystalline phases [ 15 , 29 ]. The FTIR and Raman spectra results were in good agreement with the XRD findings in the present study.…”

Section: Discussionmentioning

confidence: 99%

“…The chemical bonding information of the samples was characterized via Fourier-transform infrared spectroscopy (FTIR; Perkin-Elmer Spectrum 100, Shelton, CT, USA) with a spectral resolution of 4 cm −1 . Surface morphology of the samples was examined using scanning electron microscopy (SEM; JEOL-6500F, Tokyo, Japan) using an accelerating voltage of 20 kV [ 28 , 29 ]. Raman spectra were recorded at room temperature using Raman and a scanning near-field, optical microscope equipped with a 633 nm excitation laser source (Horiba HR800, Protrustech Co., Ltd., Taipei, Taiwan) [ 24 , 30 ].…”

Section: Methodsmentioning

confidence: 99%

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Biomimetic Ceramic Composite: Characterization, Cell Response, and In Vivo Biocompatibility

Lin

Chou

et al. 2021

Materials

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The present study aimed to synthesize biphasic calcium phosphate ceramics (CaPs) composed of β-tricalcium phosphate (β-TCP) and hydroxyapatite (HAp) from the propagated Scleractinian coral and dicalcium phosphate anhydrous using a solid-state reaction followed by heat treatment at a temperature of 1100 °C for 1 h to 7 days. The as-prepared coral and coral-derived biphasic CaPs samples were characterized through scanning electron microscopy, X-ray diffractometry, Fourier transform infrared spectroscopy, and Raman spectroscopy. The cell response of the biphasic CaPs was evaluated by in vitro cytotoxicity assessment using mouse fibroblast (L929) cells. The bilateral femoral defect rabbit model was used to assess the early local reaction of the coral-derived biphasic CaPs bone graft on tissue. The results confirmed that the co-existence of β-TCP and HAp was formed at 1100 °C for 1 h. The ratio of HA/β-TCP increased as the heat-treatment time increased. The coral-derived biphasic CaPs comprising 61% HAp and 39% β-TCP (defined as HT-3) were not cytotoxic. Furthermore, no significant differences in local tissue reaction were observed between the HT-3 sample and autogenous bone. Therefore, the synthesized coral-derived biphasic CaPs is a candidate for bone grafting due to its good biocompatibility.

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“…The sharp peak at 3643 cm −1 , belonging to the stretching vibration motion of the

groups, was observed for all heat-treated samples. The bond regions of

groups of crystalline HAp [ 18 ].…”

Section: Resultsmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Biomimetic Ceramic Composite: Characterization, Cell Response, and In Vivo Biocompatibility

Lin

Chou

et al. 2021

Materials

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“…On the other hand, Sinusaite et.al. reported that the washing step can be used in controlling the production of desired TCP polymorph [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

“…The common knowledge is that the residual ions would affect the crystal transformation and growth [ 19 ]. However, what will happen if we do not remove the residual ions and how the residual ions affect the crystals during drying is not clear.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Residuals Combining Temperature and Reaction Time on Calcium Phosphate Transformation in a Precipitation Process

Ghajeri

Leifer

Larsson

et al. 2022

JFB

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Precipitation is one of the most common processes to synthesize hydroxyapatite, which is the human body’s mineral forming bone and teeth, and the golden bioceramic material for bone repair. Generally, the washing step is important in the precipitation method to remove the residuals in solution and to stabilize the phase transformation. However, the influence of residuals in combination with the reaction temperature and time, on calcium phosphate formation, is not well studied. This could help us with a better understanding of the typical synthesis process. We used a fixed starting ion concentration and pH in our study and did not adjust it during the reaction. XRD, FTIR, ICP-OES, and SEM have been used to analyze the samples. The results showed that combining residuals with both reaction temperature and time can significantly influence calcium phosphate formation and transformation. Dicalcium phosphate dihydrate formation and transformation are sensitive to temperature. Increasing temperature (60 °C) can inhibit the formation of acidic calcium phosphate or transform it to other phases, and further the particle size. It was also observed that high reaction temperature (60 °C) results in higher precipitation efficiency than room temperature. A low ion concentration combining reaction temperature and time could still significantly influence the calcium phosphate transformation during the drying.

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Nanocomposites and Other Restorative Materials

Tan¹,

Lyu²

2023

Materials Horizons: From Nature to Nanomaterials

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Controllable synthesis of tricalcium phosphate (TCP) polymorphs by wet precipitation: Effect of washing procedure

Cited by 40 publications

References 50 publications

Biomimetic Ceramic Composite: Characterization, Cell Response, and In Vivo Biocompatibility

Biomimetic Ceramic Composite: Characterization, Cell Response, and In Vivo Biocompatibility

The Influence of Residuals Combining Temperature and Reaction Time on Calcium Phosphate Transformation in a Precipitation Process

Nanocomposites and Other Restorative Materials

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