Etude de l’influence des paramètres de synthèse sur la composition chimique des apatites oxygénées carbonatées

Belouafa, S.; Faouzi, Fatima-Ezzahra; Sallek, Brahim; Digua, Khalid; Zaoui, Fatima; C, Rifki; Chaair, Hassan

doi:10.1080/10426507.2013.860530

Cited by 2 publications

(2 citation statements)

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“…e difficulty is the factors governing the precipitation that are usually not precisely controlled [5,6] (e.g., pH of reaction medium, atomic ratio Ca/P of the reagents, concentration of the calcium solution (Ca 2+ ), temperature of reaction medium (T), and duration of reaction (D)).…”

Section: Introductionmentioning

confidence: 99%

Application of Statistical Experimental Design and Surface Plot Technique to Optimize Oxygenated Apatite Synthesis

Belouafa

Chaair

Digua

2020

Advances in Materials Science and Engineering

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This work deals with oxygenated apatite synthesis from calcium chloride and phosphoric acid using a wet precipitation method. An experimental design is applied to precise the influence of the synthesis parameters (pH of the reaction medium, atomic ratio Ca/P of the reagents, concentration of the calcium solution (Ca2+), temperature of the reaction medium (T), and duration of the reaction (D)) on the chemical composition (Ca/P molar ratio, % O2, and % O22−). An empirical model was developed and validated by applying the ANOVA analysis incorporating the interaction effects of all parameters and optimized using the response surface methodology. A reproducible synthesis of more oxygenated apatite with speed of dissolution adaptable to that of the osseous neoformation and allowing a progressive diffusion of oxygenated species (Ca/P = 1.575) is attained.

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Section: Introductionmentioning

confidence: 99%

Application of Statistical Experimental Design and Surface Plot Technique to Optimize Oxygenated Apatite Synthesis

Belouafa

Chaair

Digua

2020

Advances in Materials Science and Engineering

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“…It is characterized by a structure containing hexagonal tunnels along the c-axis in which the inserted molecular oxygen acts as an antibacterial [1]. Indeed, they undergo, after implantation, a process of degradation and dissolution combined with bone neoformation and a progressive release of oxygenated species (O 2 , O 2 2− ), elements responsible for the antiseptic power [2,3]. They can be used for filling dental canals [4].…”

Section: Introductionmentioning

confidence: 99%

Study and Optimization of Oxygenated Apatite Obtained by Dissolution-Reprecipitation of Hydroxyapatite in a Solution of Hydrogen Peroxide

et al. 2019

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The experimental design strategy is applied to study and model the preparation of oxygenated apatite obtained by the dissolution-reprecipitation of hydroxyapatite in a hydrogen peroxide. The oxygenated apatite obtained is characterized by infrared spectroscopy (IR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The characterization by analyzes (IR, DRX, SEM) shows that the dissolution-repricipitation method gives better results for oxygenated apatite containing molecular oxygen. For this, we studied the influence of the four factors such as the temperature of the reaction medium, the pH, the concentration of hydrogen peroxide and the mass of the attacked hydroxyapatite. As well as their interactions whose goal is to increase the molecular oxygen insertion rate in apatitic tunnel. The orthogonal centered composite plane allowed us to establish an equation that links the insertion rate according to the factors studied, and we obtained an optimum of introduction of 5.06%.

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Etude de l’influence des paramètres de synthèse sur la composition chimique des apatites oxygénées carbonatées

Cited by 2 publications

References 10 publications

Application of Statistical Experimental Design and Surface Plot Technique to Optimize Oxygenated Apatite Synthesis

Application of Statistical Experimental Design and Surface Plot Technique to Optimize Oxygenated Apatite Synthesis

Study and Optimization of Oxygenated Apatite Obtained by Dissolution-Reprecipitation of Hydroxyapatite in a Solution of Hydrogen Peroxide

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