Results 261 to 270 of about 1,747,741 (337)
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Biomaterials Science, 2021
Amorphous calcium phosphates (ACPs) represent a metastable amorphous state of other calcium orthophosphates (abbreviated as CaPO4) possessing variable compositional but rather identical glass-like physical properties, in which there are neither ...
S. Dorozhkin
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Amorphous calcium phosphates (ACPs) represent a metastable amorphous state of other calcium orthophosphates (abbreviated as CaPO4) possessing variable compositional but rather identical glass-like physical properties, in which there are neither ...
S. Dorozhkin
semanticscholar +1 more source
Biomaterials, 2001
The potential energy surfaces associated with [Ca3(PO4)2n clusters are analyzed in detail using ab initio calculations for n ranging from one to four. Considering separated clusters, energy criteria favor the so-called Posner's cluster Ca9(PO4)6, which is the core of the actual structural model of amorphous calcium phosphate.
N, Kanzaki +4 more
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The potential energy surfaces associated with [Ca3(PO4)2n clusters are analyzed in detail using ab initio calculations for n ranging from one to four. Considering separated clusters, energy criteria favor the so-called Posner's cluster Ca9(PO4)6, which is the core of the actual structural model of amorphous calcium phosphate.
N, Kanzaki +4 more
openaire +2 more sources
Calcium phosphates as ion-releasing fillers in restorative resin-based materials.
Dental Materials, 2019Calcium phosphates (CaP) are the main constituents of the mineral phase in bones and teeth and, along with calcium silicates and bioactive glasses, have been extensively investigated in remineralization of enamel and dentin.
R. Braga
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International Journal of Biological Macromolecules, 2019
Composites based on combination of biopolymers (chitosan, hyaluronic acid and bovine serum albumin or gelatin), calcium phosphates (CP) and magnetic nanoparticles have been prepared by a biomimetic co-precipitation method.
F. Cojocaru +6 more
semanticscholar +1 more source
Composites based on combination of biopolymers (chitosan, hyaluronic acid and bovine serum albumin or gelatin), calcium phosphates (CP) and magnetic nanoparticles have been prepared by a biomimetic co-precipitation method.
F. Cojocaru +6 more
semanticscholar +1 more source
Calcium Phosphate Mineralization
Connective Tissue Research, 1989Although it is often assumed that the thermodynamically most stable hydroxyapatite is a suitable prototype for biological minerals, it is now generally accepted that other phases such as dicalcium phosphate dihydrate and octacalcium phosphate as well as defect apatites and carbonated apatites may participate.
G H, Nancollas, S J, Zawacki
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Calcium Phosphate Transfection
Current Protocols in Neuroscience, 1997AbstractThis unit presents two methods of calcium phosphate‐based eukaryotic cell transfection that can be used for both transient and stable transfections. In these protocols, plasmid DNA is introduced to monolayer cell cultures via a precipitate that adheres to the cell surface.
R E, Kingston, C A, Chen, H, Okayama
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Ceramics International, 2019
In the present work, the formation kinetics of hydroxyapatite Ca10(PO4)6(OH)2 during ball milling of mixtures of calcium phosphates with calcium oxide or calcium hydroxide was studied.
M. Chaikina +4 more
semanticscholar +1 more source
In the present work, the formation kinetics of hydroxyapatite Ca10(PO4)6(OH)2 during ball milling of mixtures of calcium phosphates with calcium oxide or calcium hydroxide was studied.
M. Chaikina +4 more
semanticscholar +1 more source
Determination of calcium in official calcium phosphates
Journal of Pharmaceutical Sciences, 1967The assay of official calcium phosphates for calcium can be brought into the general method for calcium determination by titration with EDTA using hydroxynaphthol blue indicator by dissolving the sample in a strictly limited amount of hydrochloric acid, passing an aliquot of the solution through a column of anion-exchange resin in the chloride form ...
J S, Kim, M M, Tuckerman
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Calcium oxalate: calcium phosphate transformations
Urological Research, 2010Knowledge of the physical-chemical mechanisms responsible for the crystal growth and dissolution events involved in stone formation might enable the manipulation of thermodynamics in such a way as to increase the solubility of sparingly soluble phases (such as calcium oxalates and phosphates), thereby reducing the driving force for stone formation ...
George H, Nancollas, Zachary J, Henneman
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