Synthesis and characterisation of magnesium substituted calcium phosphate bioceramic nanoparticles made via continuous hydrothermal flow synthesis

Chaudhry, Aqif Anwar; Goodall, Josie; Vickers, Martin; Cockcroft, Jeremy K.; Rehman, Ihtesham Ur; Knowles, Jonathan C.; Darr, Jawwad A.

doi:10.1039/b807920j

Cited by 73 publications

(63 citation statements)

References 61 publications

(91 reference statements)

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“…Chaudhry investigated that adding 1 to 2 wt% Mg contents to hydroxyapatite structure led to biphasic calciumphosphate mixtures as hydroxapatite-Mg whitlockite [9]. Similar situation was shown in Fig.…”

Section: Methodssupporting

confidence: 55%

The Effect of Mg Supplement on Hydroxyapatite Produced by Chemical Precipitation

Baştan

Ağtaş²,

Özbek³

et al. 2014

Acta Phys. Pol. A

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Hydroxyapatite (HAp) exhibits excellent biocompatibility but the low mechanical strength of normal HAp ceramics generally restricts its use to low load-bearing applications. Magnesium is an attractive material for use in biodegradable implants due to its low density, non-toxicity and mechanical properties similar to those of human tissue such as bone. Its biocompatibility makes it amenable for use in a wide range of applications from bone to cardiovascular implants. The aim of this work was to produce hydroxyapatite powder with chemical precipitation method and supplement Mg and investigate the eect of magnesium on structure of HAp powders. The Mg content ranged between 1 and 2 mol.%. The Mg+HAp powders were examined for morphology. The scanning electron microscopy, X-ray diraction, energy-dispersive X-ray spectroscopy were used to characterize the specimen powders.

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Section: Methodssupporting

confidence: 55%

The Effect of Mg Supplement on Hydroxyapatite Produced by Chemical Precipitation

Baştan

Ağtaş²,

Özbek³

et al. 2014

Acta Phys. Pol. A

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“…The authors used a new CHFS reactor (Adschiri et al 1992a,b;Darr & Poliakoff 1999;Cabanas et al 2000Cabanas et al , 2001Sue et al 2004;Hakuta et al 2005;Chaudhry et al 2006;Lester et al 2006;Norton et al 2006;Boldrin et al 2007;Weng et al 2007Weng et al , 2008Weng et al , 2009aChaudhry et al 2008;Zhang et al 2009a,b) known as a HiTCH flow synthesis reactor that allowed controlled delivery of mixed metal salt solutions into the system. Cerium ammonium nitrate and zinc nitrate were used as the metal ion feeds and all nanoparticles were produced under alkaline conditions because of the presence of potassium hydroxide in flow.…”

Section: Resultsmentioning

confidence: 99%

“…Conventional CHFS methods have been used previously by the authors and others for the synthesis of a range of nanoceramic oxides. Typically, up to 10 samples per day can reasonably be made (at a level of a few grams per sample) for more conventional CHFS (Adschiri et al 1992a,b;Darr & Poliakoff 1999;Cabanas et al 2000Cabanas et al , 2001Sue et al 2004;Hakuta et al 2005;Chaudhry et al 2006;Lester et al 2006;Norton et al 2006;Boldrin et al 2007;Weng et al 2007Weng et al , 2008Weng et al , 2009bChaudhry et al 2008;Lin et al 2009;Thompson et al 2009;Zhang et al 2009a,b). Recently, the authors described a new and more efficient manual CHFS route that allowed the synthesis of multiple nanoceramics compositions in a short time, called HiTCH (high-throughput continuous hydrothermal) flow synthesis.…”

Section: Introductionmentioning

confidence: 99%

High-throughput continuous hydrothermal flow synthesis of Zn–Ce oxides: unprecedented solubility of Zn in the nanoparticle fluorite lattice

Kellici

Gong

Lin

et al. 2010

Phil. Trans. R. Soc. A.

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High-throughput continuous hydrothermal flow synthesis has been used as a rapid and efficient synthetic route to produce a range of crystalline nanopowders in the CeZn oxide binary system. High-resolution powder X-ray diffraction data were obtained for both as-prepared and heat-treated (850• C for 10 h in air) samples using the new robotic beamline I11, located at Diamond Light Source. The influence of the sample composition on the crystal structure and on the optical and physical properties was studied. All the nanomaterials were characterized using Raman spectroscopy, UV-visible spectrophotometry, Brunauer-Emmett-Teller surface area and elemental analysis (via energy-dispersive X-ray spectroscopy). Initially, for 'as-prepared' Ce 1−x Zn x O y , a phasepure cerium oxide (fluorite) structure was obtained for nominal values of x = 0.1 and 0.2. Biphasic mixtures were obtained for nominal values of x in the range of 0.3-0.9 (inclusive). High-resolution transmission electron microscopy images revealed that the phase-pure nano-CeO 2 (x = 0) consisted of ca 3.7 nm well-defined nanoparticles. The nanomaterials produced herein generally had high surface areas (greater than 150 m 2 g −1 ) and possessed combinations of particle properties (e.g. bandgap, crystallinity, size, etc.) that were unobtainable or difficult to achieve by other more conventional synthetic methods.

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“…1). [45][46][47][48][49] Briefly, the details of the system are as follows; the CHFS system incorporates three Gilson 305 HPLC pumps fitted with 25 mL pump-heads, 316SS Swagelok TM 1/8 in. fittings and tubing, except the counter-current mixing point (R in Fig.…”

Section: Synthesis Of Nano-tio 2 Using Chfsmentioning

confidence: 99%

Photocatalytic activities of N-doped nano-titanias and titanium nitride

Zhang

Goodall

Morgan

et al. 2009

Journal of the European Ceramic Society

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Synthesis and characterisation of magnesium substituted calcium phosphate bioceramic nanoparticles made via continuous hydrothermal flow synthesis

Cited by 73 publications

References 61 publications

The Effect of Mg Supplement on Hydroxyapatite Produced by Chemical Precipitation

The Effect of Mg Supplement on Hydroxyapatite Produced by Chemical Precipitation

High-throughput continuous hydrothermal flow synthesis of Zn–Ce oxides: unprecedented solubility of Zn in the nanoparticle fluorite lattice

Photocatalytic activities of N-doped nano-titanias and titanium nitride

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