Synthesis of β-TCP by sol-gel method: variation of Ca/P molar ratio

Windarti, Tri; Darmawan, Adi; Marliana, Ana

doi:10.1088/1757-899x/509/1/012147

Cited by 4 publications

(6 citation statements)

References 13 publications

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“…4 (a)). This result differs from previous research [31], in which the same condition produced β-TCP as the major product. This may be due to the presence of CTAB in the synthesis process.…”

Section: Xrd Analysiscontrasting

confidence: 99%

“…In this work, BCP/Ce synthesis as a potential osteoporotic bone filler was carried out by the sol-gel method. Based on the previous work [31], the molar ratio of (Ca + Ce)/P was kept constant at 1.2 due to the hope that the composition of resulted BCP contains more β-TCP than HA. A slow reaction process, low drying temperature, and relatively low firing temperature supported by the similarity of Ce 3+ and Ca 2+ properties would allow a maximum isomorphic substitution.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Characterization of Biphasic Calcium Phosphate Substituted Cerium as a Potential Osteoporotic Bone Filler

Windarti

Nulandaya

Widjijono

et al. 2023

Period. Polytech. Chem. Eng.

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Biphasic calcium phosphate substituted cerium (BCP/Ce) is a potential material for osteoporotic bone filler. Synthesis of BCP/Ce was conducted by the sol-gel method. This work aimed to study the influence of cerium as a precursor on the crystal structures, surface properties, and agglomeration of BCP/Ce. A series of samples were prepared by various Ce percentages (0.5–16%) and a constant molar ratio of (Ca + Ce)/P = 1.2. A structural study by Rietveld refinement calculation confirmed that synthesis without Ce produced BCP that contained hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP) at a ratio of 93:7. The presence of Ce increased β-TCP content to 73% for the use of Ce 8%. None of Ca in the HA structure was replaced by Ce. Otherwise, Ce replaced Ca in β-TCP structure by isomorphic substitution at the Wyckoff site of 6a (0,0,-0.085) or Ca (4) position. As the maximum occupancy of Ca (4) = 43%, about 17% of that was substituted by Ce for the use of 14% Ce. Ce was found in two states as Ce3+ and Ce4+ ions with Ce3+/Ce4+ ratio > 1. The presence of Ce on the particle surface caused a change in the particle shape, from plate-like to spherical. The particle size decreased to <100 nm with the increase of Ce content. The rise of Ce content in BCP decreased the luminescent property due to the increase of oxygen vacancies. The negative value of Zeta potential confirms that BCP/Ce surface can accommodate bone cell proliferation.

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Section: Xrd Analysiscontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Biphasic Calcium Phosphate Substituted Cerium as a Potential Osteoporotic Bone Filler

Windarti

Nulandaya

Widjijono

et al. 2023

Period. Polytech. Chem. Eng.

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“…From the figure 6 it is clear that calcium phosphate layer partially formed on the surface of porous titanium component even though under cyclic loading in Simulated Body Fluid. From EDS analysis in figure 7 and mapping in figure 8, the presence of calcium phosphate was confirmed and calcium phosphate (Ca/P) atomic ratio was calculated 1.44, which is near to b-TCP and HA phase and these phases are highly recommended for osteoconductivity [16]. This result clearly proved the biocompatibility of porous titanium components developed by replica impregnation method.…”

Section: Sem Observation Of Fracture Surface After Sbf Testingmentioning

confidence: 64%

Effect of SBF on Cyclic Compression Behaviour of Porous Titanium Component for Implant Application

Raihan¹,

Piya²,

Hossain³

2020

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In the recent years, porous structure is being drawn attention to the researcher for implant application for superior characteristics over bulk materials. The aim of this study is to evaluate the cyclic compression behaviour of porous titanium components in simulated body fluid (SBF). Porous titanium component developed by replica impregnation method was taken for study. Compression tests in air revealed that the yield strength of the porous body is 8MPa on average and elastic modulus is around 180MPa which is compatible to cancellous bone application. After 10% strain porous structure deformed plastically producing a long plateau region. Compressive fatigue tests revealed that at higher stress level porous titanium failed earlier in SBF than in air. In contrast, fatigue limit of porous substrate is 2 MPa which was not affected by SBF medium. After 10 million cycles in SBF, Calcium Phosphate layer was partially formed on the surface of porous titanium by re-precipitation from SBF. EDS analysis showed that the Ca/P atomic ratio was 1.44 which is near to beta TCP and HA phase and these phases are beneficial for bone tissue ingrowth.

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“…It was reported that for the preparation of BCP by the sol-gel synthesis method the calcium nitrate and P 2 O 5 instead of ammonium hydrogen phosphate as starting materials could be successfully used [229,230]. The different phase ratios of CHAp/β-TCP which influence the bioproperties of BCP were obtained by changing the sintering temperature.…”

Section: Sol-gel Synthesis Of Biphasic Calcium Phosphate (Bcp)mentioning

confidence: 99%

Sol–gel synthesis of calcium phosphate-based biomaterials—A review of environmentally benign, simple, and effective synthesis routes

Ishikawa

Kareiva

2020

J Sol-Gel Sci Technol

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In this review article the available results about application of sol-gel synthesis method for the preparation of different calcium phosphates and composite materials are summarized. The attention is paid to calcium phosphate-containing compounds which show the biological properties and could be used as potential phosphate bioceramics in medicine. It was demonstrated that the sol-gel synthesis method is a powerful tool for the synthesis of calcium hydroxyapatite and other phosphates, and different calcium phosphate-based composites at mild synthetic conditions resulted in high reproducibility, high phase purity, and desired morphology. Thus, the sol-gel synthesis method enables the researchers to develop biomaterials with superior features in terms of biomedical applications.

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Synthesis of β-TCP by sol-gel method: variation of Ca/P molar ratio

Cited by 4 publications

References 13 publications

Synthesis and Characterization of Biphasic Calcium Phosphate Substituted Cerium as a Potential Osteoporotic Bone Filler

Synthesis and Characterization of Biphasic Calcium Phosphate Substituted Cerium as a Potential Osteoporotic Bone Filler

Effect of SBF on Cyclic Compression Behaviour of Porous Titanium Component for Implant Application

Sol–gel synthesis of calcium phosphate-based biomaterials—A review of environmentally benign, simple, and effective synthesis routes

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