Nano to micro size transition of hydroxyapatite in porcine bone during heat treatment with low heating rates

Castillo-Paz, Angélica M.; Londoño‐Restrepo, Sandra M.; Tirado-Mejı́a, L.; Mondragón, M.A.; Rodríguez‐García, Mario E.

doi:10.1016/j.pnsc.2020.06.005

Cited by 29 publications

(19 citation statements)

References 18 publications

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“…In this work, the growth of grains occurs in the c-axis in the samples treated at temperatures higher than 1000 °C, which agrees with previous reports for the growth of HAp crystals 56 , 57 . This growth generates intergranular voids of greater size than those observed in the samples’ images obtained with lower temperatures.…”

Section: Discussionsupporting

confidence: 93%

Temperature effect in physicochemical and bioactive behavior of biogenic hydroxyapatite obtained from porcine bones

Forero-Sossa

Salazar-Martinez

Giraldo-Betancur

et al. 2021

Sci Rep

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Biogenic hydroxyapatite (BHAp) is a widely used material in the biomedical area due to its similarities with the bone tissue mineral phase. Several works have been spotlighted on the thermal behavior of bone. However, little research has focused on determining the influence of calcination temperature in the physicochemical and bioactive properties of BHAp. In this work, a study of the physicochemical properties’ changes and bioactive response of BHAp produced from porcine femur bones using calcination temperatures between 900 to 1200 °C was conducted. The samples’ structural, morphological, and compositional changes were determined using XRD, SEM, and FTIR techniques. XRD results identified three temperature ranges, in which there are structural changes in BHAp samples and the presence of additional phases. Moreover, FTIR results corroborated that B-type substitution is promoted by increasing the heat treatment temperature. Likewise, samples were immersed in a simulated biological fluid (SBF), following the methodology described by Kokubo and using ISO 23317:2014 standard, for 3 and 7 days. FTIR and SEM results determined that the highest reaction velocity was reached for samples above 1000 °C, due to intensity increasing of phosphate and carbonate bands and bone-like apatite morphologies, compared to other temperatures evaluated.

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Section: Discussionsupporting

confidence: 93%

Temperature effect in physicochemical and bioactive behavior of biogenic hydroxyapatite obtained from porcine bones

Forero-Sossa

Salazar-Martinez

Giraldo-Betancur

et al. 2021

Sci Rep

View full text Add to dashboard Cite

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“…All the powders synthesized under the conditions described seemed to be single-phase HAp. Furthermore, the broadening of each diffraction peak suggests that the powder had low crystallinity [ 28 , 29 ].…”

Section: Resultsmentioning

confidence: 99%

Adsorption of Inositol Phosphate on Hydroxyapatite Powder with High Specific Surface Area

2022

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Chelate-setting calcium-phosphate cements (CPCs) have been developed using inositol phosphate (IP6) as a chelating agent. However, the compressive strength of the CPC fabricated from a commercially available Hydroxyapatite (HAp) powder was approximately 10 MPa. In this study, we miniaturized HAp particles as a starting powder to improve the compressive strength of chelate-setting CPCs and examined the adsorption properties of IP6 onto HAp powders. An HAp powder with a specific surface area (SSA) higher than 200 m2/g (HApHS) was obtained by ultrasonic irradiation for 1 min in a wet synthesis process, greatly improving the SSA (214 m2/g) of the commercial powder without ultrasonic irradiation. The HApHS powder was found to be a B-type carbonate-containing HAp in which the phosphate groups in apatite were replaced by carbonate groups. Owing to the high SSA, the HApHS powder also showed high IP6 adsorption capacity. The adsorption phenomena of IP6 to our HApHS and commercially available Hap powders were found to follow the Freundlich and Langmuir models, respectively. We found that IP6 adsorbs on the HApHS powder by both physisorption and chemisorption. The fine HapHS powder with a high SSA is a novel raw powder material, expected to improve the compressive strength of chelate-setting CPCs.

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“…As seen there, it is composed of nanosized particles of Hap that are attached to each other due to the coalescence process that takes place at the pyrolysis temperature used (850 °C). 32 It is possible to observe the grain boundaries between each nanoparticle and some voids or cavities formed between them. In Figure 9 D,E a different BHap particle is observed, in general, with the same characteristics as the other one, indicating homogeneity in the sample.…”

Section: Resultsmentioning

confidence: 99%

Biogenic Hydroxyapatite Obtained from Bone Wastes Using CO₂-Assisted Pyrolysis and Its Interaction with Glyphosate: A Computational and Experimental Study

2022

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In this work, biogenic hydroxyapatite (BHap) obtained from cattle bone waste is proposed as an adsorbent of this dangerous pollutant. Density functional theory (DFT) and calorimetric studies were developed to study the interaction between BHap and glyphosate (GLY). A strong interaction was found in the experiments through the measurement of immersion enthalpy, confirmed by the exothermic chemisorption obtained with DFT calculations. These results suggest that hydroxyapatite is a promising adsorbent material for GLY adsorption in aqueous solutions. In addition, it was determined that the GLY–hydroxyapatite interaction is greater than the water–hydroxyapatite interaction, which favors the GLY adsorption into this material.

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Nano to micro size transition of hydroxyapatite in porcine bone during heat treatment with low heating rates

Cited by 29 publications

References 18 publications

Temperature effect in physicochemical and bioactive behavior of biogenic hydroxyapatite obtained from porcine bones

Temperature effect in physicochemical and bioactive behavior of biogenic hydroxyapatite obtained from porcine bones

Adsorption of Inositol Phosphate on Hydroxyapatite Powder with High Specific Surface Area

Biogenic Hydroxyapatite Obtained from Bone Wastes Using CO₂-Assisted Pyrolysis and Its Interaction with Glyphosate: A Computational and Experimental Study

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Nano to micro size transition of hydroxyapatite in porcine bone during heat treatment with low heating rates

Cited by 29 publications

References 18 publications

Temperature effect in physicochemical and bioactive behavior of biogenic hydroxyapatite obtained from porcine bones

Temperature effect in physicochemical and bioactive behavior of biogenic hydroxyapatite obtained from porcine bones

Adsorption of Inositol Phosphate on Hydroxyapatite Powder with High Specific Surface Area

Biogenic Hydroxyapatite Obtained from Bone Wastes Using CO2-Assisted Pyrolysis and Its Interaction with Glyphosate: A Computational and Experimental Study

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Biogenic Hydroxyapatite Obtained from Bone Wastes Using CO₂-Assisted Pyrolysis and Its Interaction with Glyphosate: A Computational and Experimental Study