Deliquescent behavior of calcium phosphate materials synthesized by sol–gel technique

Fonseca, Raquel Luiza Mageste; Gonçalves, Bruno de Souza; Balarini, Julio Cézar; Nunes, Eduardo H.M.; Houmard, Manuel

doi:10.1007/s10971-020-05425-6

Cited by 3 publications

(1 citation statement)

References 44 publications

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“…Other types of CaP include octa-calcium phosphate (OCP, Ca 8 (HPO 4 ) 2 (PO 4 ) 4 ·5H 2 O), tetra-calcium phosphate (TTCP, Ca 4 (PO 4 ) 2 O), tricalcium phosphate (TCP, Ca 3 (PO 4 ) 2 ), dicalcium phosphate dihydrate (DCPD, CaHPO 4 ·H 2 O), and dicalcium phosphate anhydrous (DCPA, CaHPO 4 ). Numerous fabrication techniques have been employed to create calcium phosphate, including hydrothermal processes [ 31 , 32 , 33 ], solid-state reactions [ 34 , 35 ], sol–gel synthesis [ 36 , 37 ], co-precipitation [ 38 , 39 ], and micro-emulsion synthesis [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

The Preparation and Characterization of Chitosan/Calcium Phosphate Composite Microspheres for Biomedical Applications

Wu,

Huang,

Kao

et al. 2024

Polymers

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In this study, we successfully prepared porous composite microspheres composed of hydroxyapatite (HAp), di-calcium phosphate di-hydrated (DCPD), and chitosan through the hydrothermal method. The chitosan played a crucial role as a chelating agent to facilitate the growth of related calcium phosphates. The synthesized porous composite microspheres exhibit a specific surface area of 38.16 m2/g and a pore volume of 0.24 cm3/g, with the pore size ranging from 4 to 100 nm. Given the unique properties of chitosan and the exceptional porosity of these composite microspheres, they may serve as carriers for pharmaceuticals. After being annealed, the chitosan transforms into a condensed form and the DCPD transforms into Ca2P2O7 at 300 °C. Then, the Ca2P2O7 initially combines with HAp to transform into β tricalcium phosphate (β-TCP) at 500 °C where the chitosan is also completely combusted. Finally, the microspheres are composed of Ca2P2O7, β-TCP, and HAp, also making them suitable for applications such as injectable bone graft materials.

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Section: Introductionmentioning

confidence: 99%

The Preparation and Characterization of Chitosan/Calcium Phosphate Composite Microspheres for Biomedical Applications

Wu,

Huang,

Kao

et al. 2024

Polymers

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Influence of the alcoholic solvent and gelation temperature on the structural and water vapor adsorption properties of silica adsorbents synthesized by sol-gel method without catalyst

Fonseca

Sampaio

Mayrink

et al. 2022

Microporous and Mesoporous Materials

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Calcium Phosphate Functionalization and Applications in Dentistry

Ren

Han

et al. 2022

j biomed nanotechnol

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The oral and maxillofacial hard tissues support the maxillofacial shape and serve as the foundation for functional activities. Defects in these tissues not only impair patients’ ability to perform their normal physiological functions but also have a significant negative impact on their psychological well-being. Moreover, these tissues have a limited capacity for self-healing, necessitating the use of artificial materials to repair defects. Calcium phosphate is a fine-grained inorganic biomineral found in vertebrate teeth and bones that has a comparable composition to human hard tissues. Calcium phosphate materials are biocompatible, bioactive, and osteogenic for hard tissue repair, despite drawbacks such as poor mechanical qualities, limiting their clinical efficacy and application. With the advancement of materials science and technology, numerous techniques have been developed to enhance the characteristics of calcium phosphate, and one of them is functionalization. Calcium phosphate can be functionally modified by changing its size, morphology, or composition through various preparation processes to achieve multifunctionality and improve physical and chemical properties, biocompatibility, and osteogenic potential. The purpose of this review is to provide new ideas for the treatment of oralmaxillofacial hard tissue defects and deficiencies by summarizing the functionalization strategies of calcium phosphate materials and their applications in dentistry.

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Deliquescent behavior of calcium phosphate materials synthesized by sol–gel technique

Cited by 3 publications

References 44 publications

The Preparation and Characterization of Chitosan/Calcium Phosphate Composite Microspheres for Biomedical Applications

The Preparation and Characterization of Chitosan/Calcium Phosphate Composite Microspheres for Biomedical Applications

Influence of the alcoholic solvent and gelation temperature on the structural and water vapor adsorption properties of silica adsorbents synthesized by sol-gel method without catalyst

Calcium Phosphate Functionalization and Applications in Dentistry

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