Sol–gel synthesis of pure nano sized β-tricalcium phosphate crystalline powders

Sanosh, K.P.; Chu, Min-Cheol; Balakrishnan, Avinash; Kim, T.N.; Cho, Seong-Jai

doi:10.1016/j.cap.2009.04.014

Cited by 68 publications

(48 citation statements)

References 23 publications

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“…After heating at 750 °C, the OH − absorption bands disappeared; Moreover, the spectrum of the sample treated at 750°C contains features from β-TCP, i.e. band shoulders around 1019, 1112 cm −1 [23], and also we note the presence of three bands situated at 490, 550 and 594 cm −1 witch belongs to triply degenerate ν 4 O-P-O bending mode in the phosphate group. As shown in Figure 4, the characteristic peaks of β-TCP can be detected more obviously for the sample calcined at 1000°C, along with the absence of all peaks belonged to carbonate which means that we obtain a free carbonate structure at this temperature.…”

Section: Resultsmentioning

confidence: 93%

“…For the as-dried powder no characteristic peaks has been detected which means that the sample is amorphous while the furnace heated powders are of pure HA composition up to 500°C [2,[18][19][20][21][22]. However, it converts to β-TCP when treated at 750°C and 1000°C [22][23][24]. is assigned to triply degenerated (v 3 ) asymmetric stretching mode of P-O bond in hydroxyapatite structure.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Thermal stability of a modified sol-gel derived hydroxyapatite nanopowders

Herradi¹,

Bali²,

Khaldi³

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Thermal stability of a modified sol-gel derived hydroxyapatite nanopowders

Herradi¹,

Bali²,

Khaldi³

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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“…XRD and FTIR analyses of -TCP nanopowder and n -TCP sca old without P3HB 3.3.1. X-ray di raction analysis Figure 6(a) shows X-ray di raction spectra that n -TCP powder produced by the route of Sanosh et al [39]. According to XRD spectra, it is obvious that the obtained product was n -TCP with high purity, and no additional stable phase was revealed.…”

Section: Results and Discussion 31 Xrf Analyses Of -Tcp Nanopowdermentioning

confidence: 99%

“…The created precipitate was dried at 40 C for 24 h in a dry oven. This dried powder was calcined in air at 800 C for 30 min using an electrical furnace (Daesung electrics, Korea) and a heating rate of 10 C/min [39]. Then, the powder produced was subjected to analysis by XRD, TEM, XRF, and FTIR tests.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of physical and mechanical properties of B-tri-calcium phosphate/poly-3-hydroxybutyrate nanocomposite scaffold for bone tissue engineering application

Shahi

Karbasi

2017

Scientia Iranica

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KEYWORDSNano--tricalcium phosphate ( -TCP); Poly-3-hydroxybutyrate (P3HB); Sca old; Tissue engineering.Abstract. One of the major challenges facing researchers of tissue engineering is the sca old design with desirable physical and mechanical properties for growth and proliferation of cells and tissue formation. In this paper, rstly, -tricalcium phosphate ( -TCP) nanopowders with particle size of 50-70 nm were synthesized using a simple sol-gel route with calcium nitrate and potassium dihydrogenphosphate as calcium and phosphorus precursors, respectively. Then, the porous ceramic sca old containing 40, 50, and 60 wt% of n -TCP was prepared by the polyurethane sponge replication method. The sca olds were coated with P3HB for 30 sec and 1 min in order to increase the sca old's mechanical properties. XRD, XRF, SEM, TEM, and FT-IR were used in order to study the phase and element structure, morphology, particle size, and determination of functional groups, respectively. Based on the results of compressive strength and porosimetry tests, the most appropriate type of sca old is 50 wt% of n -TCP immersed for 30 sec in P3HB with 75% porosity in 200-600 m, with a compressive strength of 1.09 MPa and a compressive modulus of 33 MPa, which can be utilized in bone tissue engineering.

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“…Geleneksel HA'lar genellikle 1100°C'nin üzerindeki sıcaklıklarda sinterlenmeleri neticesinde ikincil fazlara (kalsiyum oksit ve TCP) ayrışmaya (Denklem 1) başlarlar [11]: Ca 10 (PO 4 ) 6 …”

Section: Gi̇ri̇ş (Introduction)unclassified

Flor İyonlari İlave Edi̇lmi̇ş Nano-Kalsi̇yum Fosfatlarin Mi̇kroyapisinin Araştirilmasi

Tahmasebifar¹,

Güngör²,

Evis³

2015

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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ÖZETBu çalışmada, farklı kompozisyonlarda flor (F -) iyonları ilave edilmiş kalsiyum fosfatlar (CaP) çöktürme yöntemi ile üretilmiş ve mikroyapılarını incelemek için 1100ºC'de 1 ve 5 saat sinterlenmiştir. Sinterleme zamanının uzatılması ile sinterlenmiş malzemelerin yoğunluklarının arttığı gözlemlenmiştir. Ana faz olarak β-üç kalsiyum fosfatın (TCP) varlığı Rietveld yöntemi tarafından belirlenen yapısal analizlerle belirlenmiştir. Ayrıca örneklerde önemli miktarda hidroksiapatit (HA) tespit edilmiştir. İyonların ilave edilmesiyle birim kafes hacmi küçülmüştür. Taramalı elektron mikroskobu (SEM) sonuçları, iyonların eklenmesiyle daha küçük tanelerin oluştuğunu göstermiştir. Fourier dönüşümlü kızıl ötesi spektrometresi (FTIR), karakteristik TCP bantlarına ek olarak, F -iyonunun varlığını doğrulamıştır.Anahtar Kelimeler: Biyoseramikler; kalsiyum fosfatlar; katkılama; sinterleme THE MICRO-STRUCTURAL INVESTIGATION OF NANO-CALCIUM PHOSPHATES DOPED WITH FLUORIDE IONS ABSTRACTIn this study, fluoride (F -) doped calcium-phosphates (CaP) at various compositions were synthesized by a precipitation method and sintered at 1100ºC for 1 and 5 h to investigate their microstructures. It was observed that densities of the sintered materials were increased by extending the sintering time. The structural analysis determined by Rietveld refinement proved the presence of β-tri-calcium phosphate (TCP) as the main phase. Also, a considerable amount of hydroxyapatite (HA) was detected in the samples. Unit cell volumes shrinked upon ions substitution. Scanning electron microscopy (SEM) results showed that addition of doping ions resulted in smaller grains. In Fourier transform infrared spectroscopy (FTIR), in addition to the characteristic bands of TCP, F -ion substitution was confirmed.

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Sol–gel synthesis of pure nano sized β-tricalcium phosphate crystalline powders

Cited by 68 publications

References 23 publications

Thermal stability of a modified sol-gel derived hydroxyapatite nanopowders

Thermal stability of a modified sol-gel derived hydroxyapatite nanopowders

Evaluation of physical and mechanical properties of B-tri-calcium phosphate/poly-3-hydroxybutyrate nanocomposite scaffold for bone tissue engineering application

Flor İyonlari İlave Edi̇lmi̇ş Nano-Kalsi̇yum Fosfatlarin Mi̇kroyapisinin Araştirilmasi

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