Preparation, physical-chemical characterisation and cytocompatibility of calcium carbonate cements.
The feasibility of calcium carbonate cements involving the recrystallisation of metastable calcium carbonate varieties has been demonstrated. Calcium carbonate cement compositions presented in this paper can be prepared straightforwardly by simply mixing water (liquid phase) with two calcium carbonate phases (solid phase) which can be easily obtained by precipitation. An original cement composition was obtained by mixing amorphous calcium carbonate and vaterite with an aqueous medium. The cement set and hardened within 2h at 37 degrees C in an atmosphere saturated with water and the final composition of the cement consisted mostly of aragonite. The hardened cement was microporous and showed poor mechanical properties. Cytotoxicity tests revealed excellent cytocompatibility of calcium carbonate cement compositions. Calcium carbonates with a higher solubility than the apatite formed for most of the marketed calcium phosphate cements might be of interest to increase biomedical cement resorption rates and to favour its replacement by bone tissue.
Combes
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CIRIMAT, UMR CNRS 5085, Equipe Physico-Chimie des Phosphates, ENSIACET, 118 route de Narbonne, 31077 Toulouse Cedex 4, France. Christele.Combes@ensiacet.fr
Miao
Baoji
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Bareille
Reine
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Rey
Christian
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D001672:Biocompatible Materials / Q000138:chemical synthesis / Q000737:chemistry* / Q000633:toxicity; D001843:Bone Cements / Q000138:chemical synthesis / Q000737:chemistry* / Q000633:toxicity; D002119:Calcium Carbonate / Q000138:chemical synthesis / Q000737:chemistry* / Q000633:toxicity; D019245:Compressive Strength; D006801:Humans; D010006:Osteoblasts / Q000187:drug effects; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
D001672:Biocompatible Materials; D001843:Bone Cements; D002119:Calcium Carbonate