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Amorphous Calcium Phosphates: Synthesis, Properties and Uses in Biomaterials [PDF]
Acta Biomaterialia, 2010 This review paper on amorphous calcium phosphates (ACPs) provides an update on several aspects of these compounds which have led to many studies and some controversy since the 1970s, particularly because of the lack of irrefutable proof of the occurrence of an ACP phase in mineralised tissues of vertebrates.
Christèle Combes
exaly +7 more sources
Formation of Amorphous Iron-Calcium Phosphate With High Stability
Advanced Materials, 2023 AbstractAmorphous iron‐calcium phosphate (Fe‐ACP) plays a vital role in the mechanical properties of teeth of some rodents, which are very hard, but its formation process and synthetic route remain unknown. Here, the synthesis and characterization of an iron‐bearing amorphous calcium phosphate in the presence of ammonium iron citrate (AIC) are reported.
Helmut Cölfen, Song Chen
exaly +6 more sources
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Chemistry - A European Journal, 2016
AbstractCrystallization from amorphous phases is an emerging pathway for making advanced materials. Biology has made use of amorphous precursor phases for eons and used them to produce structures with remarkable properties. Herein, we show how the design of the amorphous phase greatly influences the nanocrystals formed therefrom.
Dmitry Chernyshov +2 more
exaly +4 more sources
AbstractCrystallization from amorphous phases is an emerging pathway for making advanced materials. Biology has made use of amorphous precursor phases for eons and used them to produce structures with remarkable properties. Herein, we show how the design of the amorphous phase greatly influences the nanocrystals formed therefrom.
Dmitry Chernyshov +2 more
exaly +4 more sources
Amorphous Calcium Phosphate Coatings
2022Amorphous calcium phosphate (ACP) is unique among calcium phosphates because it lacks the long-range, periodic atomic-scale order observed in crystalline calcium phosphates. In addition, ACP exhibits a high dissolution rate in vitro and in vivo. In this chapter, the fabrication processes of ACP coating films, based on wet and dry processes, are ...
Kyosuke Ueda, Takayuki Narushima
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Characterization of calcium phosphate cements modified by addition of amorphous calcium phosphate
Acta Biomaterialia, 2010In this study the influence of amorphous calcium phosphate (ACP) on the setting of, and the formed apatite crystallite size in, a calcium phosphate cement (CPC) based on alpha-tricalcium phosphate (alpha-TCP) or tetracalcium phosphate (TTCP)/monocalcium phosphate monohydrate (MCPM) was investigated.
Natasja M F, Van den Vreken +4 more
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Influence of gelatin on the precipitation of amorphous calcium phosphate
Colloids and Surfaces, 1987The influence of gelatin on the formation, stability and transformation of amorphous calcium phosphate, ACP, at 298 K and initial pH 7.4 was investigated. Precipitation of ACP was brought about from equimolar solutions (3×10−3 mol dm−3) of calcium chloride and sodium phosphate while the concentration of gelatin varied from 0.0001 to 1.12 g dm−3.
Furedi-Milhofer, Helga +2 more
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Amorphous calcium (ortho)phosphates
Acta Biomaterialia, 2010Amorphous calcium phosphates (ACPs) represent a unique class of biomedically relevant calcium orthophosphate salts, having variable chemical but essentially identical glass-like physical properties, in which there is neither translational nor orientational long-range ordering of the atomic positions.
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An intermediate state in hydrolysis of amorphous calcium phosphate
Calcified Tissue International, 1983The hydrolysis of previously prepared amorphous calcium phosphate (ACP) was studied in a solution "saturated" with ACP; this eliminated the initial consumption of acid due to ACP dissolution. The procedure established that conversion of high-concentration ACP slurry to an apatite involves two processes: the first process consumes acid and indicates the
M S, Tung, W E, Brown
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Journal of Biomimetics, Biomaterials and Tissue Engineering, 2010
Amorphous calcium phosphates (ACPs) represent a unique class of biomedically relevant calcium orthophosphate salts, in which there are neither translational nor orientational long-range orders of the atomic positions. Nevertheless, the constancy in their chemical composition over a relatively wide range of preparation conditions suggests the presence ...
openaire +1 more source
Amorphous calcium phosphates (ACPs) represent a unique class of biomedically relevant calcium orthophosphate salts, in which there are neither translational nor orientational long-range orders of the atomic positions. Nevertheless, the constancy in their chemical composition over a relatively wide range of preparation conditions suggests the presence ...
openaire +1 more source