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Strontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavior

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dc.citedby68
dc.contributor.authorMardziah C.M.en_US
dc.contributor.authorSopyan I.en_US
dc.contributor.authorRamesh S.en_US
dc.contributor.authorid25823301400en_US
dc.contributor.authorid23482484000en_US
dc.contributor.authorid41061958200en_US
dc.date.accessioned2023-12-29T07:53:35Z
dc.date.available2023-12-29T07:53:35Z
dc.date.issued2009
dc.description.abstractStrontium doped hydroxyapatite (Sr-doped HA) nanopowder has been synthesized using a sol-gel method. The concentration of strontium was varied at 2, 5, 10 and 15 mol%. The as synthesized powders were calcined at temperatures of 500-900�C. The calcined white Sr-doped HA powders were characterized using differential and thermogravimetric analysis (TG/DTA), field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Morphological evaluation by FESEM measurement shows that the particles of the Sr-doped HA agglomerates are globular in shape with an average size of 1-2 mm in diameter while the primary particles have a diameter of 30-150 nm in average. The calcined powders contained hydroxyapatite phase only for all doping concentration except for the smallest doping concentration, 2 mol%, where �-TCP appeared as the secondary phase. This indicates that the substitution of Sr atoms for Ca atoms have stabilized the HA phase, leading to the inhibition of the appearance of �-TCP phase upon high temperature calcination. Even, for 2 mol% Sr-doped HA, the appearance of �-TCP peak only started to appear at a temperature as high as of 900�C, compared to non-Sr doping HA which appeared at a temperature below 800�C. � Society for Biomaterials and Artificial Organs (India), 20090119-37.en_US
dc.description.natureFinalen_US
dc.identifier.epage113
dc.identifier.issue2
dc.identifier.scopus2-s2.0-78951472715
dc.identifier.spage105
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-78951472715&partnerID=40&md5=a7dfc110fdcd587bb430880a4d047772
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/30803
dc.identifier.volume23
dc.pagecount8
dc.sourceScopus
dc.sourcetitleTrends in Biomaterials and Artificial Organs
dc.subjectApatite
dc.subjectConcentration (process)
dc.subjectFourier transform infrared spectroscopy
dc.subjectHydroxyapatite
dc.subjectNanostructured materials
dc.subjectPowders
dc.subjectSol-gel process
dc.subjectStrontium
dc.subjectThermogravimetric analysis
dc.subjectX ray diffraction
dc.subjectX ray powder diffraction
dc.subjectAs-synthesized powder
dc.subjectAverage size
dc.subjectCalcination temperature
dc.subjectCalcined powder
dc.subjectDoping concentration
dc.subjectField emission scanning electron microscopy
dc.subjectFTIR
dc.subjectHA powders
dc.subjectHigh-temperature calcination
dc.subjectNano powders
dc.subjectPhase-only
dc.subjectPrimary particles
dc.subjectSecondary phase
dc.subjectTCP phase
dc.subjectCalcination
dc.titleStrontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavioren_US
dc.typeArticleen_US
dspace.entity.typePublication
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