Microstructure: Surface and cross-sectional studies of hydroxyapatite formation on the surface of white Portland cement paste in vitro

Chaipanich, Arnon; Torkittikul, Pincha

doi:10.1016/j.apsusc.2011.04.046

Cited by 6 publications

(6 citation statements)

References 25 publications

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“…Apatite-like layer forming on calcium silicate based material from WPC has been reported [7,8,13]. These bio-reactive apatite-like layers such as hydroxyapatite (HA) and hydroxyl carbonate apatite (HCA) are responsible for bone bonding [14].…”

Section: Introductionmentioning

confidence: 99%

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Apatite formation on calcined kaolin–white Portland cement geopolymer

Pangdaeng

Sata

Aguiar

et al. 2015

Materials Science and Engineering: C

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In this study, calcined kaolin-white Portland cement geopolymer was investigated for use as biomaterial. Sodium hydroxide and sodium silicate were used as activators. In vitro test was performed with simulated body fluid (SBF) for bioactivity characterization. The formation of hydroxyapatite bio-layer on the 28-day soaked samples surface was tested using SEM, EDS and XRD analyses. The results showed that the morphology of hydroxyapatite was affected by the source material composition, alkali concentration and curing temperature. The calcined kaolin-white Portland cement geopolymer with relatively high compressive strength could be fabricated for use as biomaterial. The mix with 50% white Portland cement and 50% calcined kaolin had 28-day compressive strength of 59.0MPa and the hydroxyapatite bio-layer on the 28-day soaked sample surface was clearly evident.

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Section: Introductionmentioning

confidence: 99%

“…Investigations of bioactivity on the surface of cementitious material such as WPC [7,8] and aluminosilicate/inorganic polymer [9][10][11][12] have been studied. Apatite-like layer forming on calcium silicate based material from WPC has been reported [7,8,13].…”

Section: Introductionmentioning

confidence: 99%

Apatite formation on calcined kaolin–white Portland cement geopolymer

Pangdaeng

Sata

Aguiar

et al. 2015

Materials Science and Engineering: C

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“…5 as an example. This globular morphology is typical of the bone-like apatite which precipitates on bioactive materials when they are soaked in SBF solution, as widely reported in the literature [30,[39][40][41]. In order to confirm that the chemical composition of the observed grains was in agreement with the hydroxyl-apatite formula [Ca10(PO4)6(OH)2], EDXS analysis of the precipitate has been carried out (Fig.…”

Section: Films' Biological Propertiesmentioning

confidence: 68%

Coatings of titanium substrates with xCaO·(1 − x)SiO 2 sol–gel materials: characterization, bioactivity and biocompatibility evaluation

Catauro

Papale

Bollino

2016

Materials Science and Engineering: C

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“…Metakaolin geopolymer without calcium treatment exhibited only a small apatite forming after immersion for 21 days 45 . The treatment by CaCl 2 improved the forming of apatite as dense apatite was formed after only 3 days of soaking in SBF compared to the 7 days of soaking for calcium rich white cement 46 . The fast forming of hydroxyapatite is considered advantageous for implant materials 47,48 .…”

Section: Apatite Formation After Sbf Immersionmentioning

confidence: 99%

Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment

Pangdaeng¹,

Sata²,

Aguiar³

et al. 2016

ScienceAsia

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This paper reports that surface treatment with CaCl 2 enhances the bioactivity of a calcined kaolin geopolymer. Calcined kaolin, NaOH solution, sodium silicate solution, and heat curing were used to form geopolymer pastes. A soaked-treatment method was applied to the geopolymer samples using CaCl 2 solution as the ion exchange agent. The bioactivity of the material was determined by the simulated body fluid (SBF) in vitro testing method. Scanning electron microscope images showed a dense apatite formation on the treated geopolymer surface after SBF immersion for only 3 days. The CaCl 2 treatment promoted compressive strength and enhanced bioactivity by accelerating apatite precipitation and slowing down the rise in pH.

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Microstructure: Surface and cross-sectional studies of hydroxyapatite formation on the surface of white Portland cement paste in vitro

Cited by 6 publications

References 25 publications

Apatite formation on calcined kaolin–white Portland cement geopolymer

Apatite formation on calcined kaolin–white Portland cement geopolymer

Coatings of titanium substrates with xCaO·(1 − x)SiO 2 sol–gel materials: characterization, bioactivity and biocompatibility evaluation

Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment

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