Concept

Phosphate de calcium

Publications associées (32)

Injectable calcium phosphate hydraulic cement (CPHC) used for periodontal tissue regeneration: A study of a dog model

Injectable calcium phosphate hydraulic cement (CPHC) is a new bone substitute family. This study aimed to evaluate the use of CPHC in surgical periodontitis-simulating defects in a dog model. CPHC was obtained by adding powder mixtures of different calcium ...

2003

The incommensurate structure of K3In(PO4)(2)

Gervais Chapuis, Alla Arakcheeva

The incommensurately modulated structure of K3In(PO4)(2) has been solved and refined. The origin of the modulation relates to the ordering of K cations within the hexagonal close packing of the PO4 anions. The driving forces for the modulation of the other ...

2003

Calcium phosphate microgranules

The invention concerns microgranules produced from calcium phosphate materials. The invention also concerns a method for producing said microgranules. The inventive microgranules are characterised by a very narrow particle size distribution. ...

2001

Electron diffraction and high resolution transmission electron microscopy in the characterization of calcium phosphate precipitation from aqueous solutions under biomineralization conditions

Philippe Buffat, Elena Suvorova Buffat

Calcium phosphate precipitation obtained from aqueous solutions at room and body temperatures and pH 5.5-7.5 were investigated by high-resolution transmission electron microscopy (HRTEM), transmission electron diffraction, scanning electron microscopy (SEM ...

2001

Calcium phosphate precipitation under biomineralization conditions: Effect of microgravity

Elena Suvorova Buffat

Structure and morphology of solid particles in precipitation from aqueous solutions correlate with formation (solution) conditions and thus reflect the growth mechanism. Calcium phosphate precipitation obtained from dilute aqueous solutions at room and bod ...

2000

Implants osseux

Jacques Lemaître

NOVELTY - The bone substitute is made in one piece from cement phosphocalcium materials consolidated chemically at low temperature and in presence of water. USE - In medicine, as artificial bone graft. ADVANTAGE - Macroporous structure promotes resorption ...

1999

Synthesis of some D-ribose phosphates

Unambitious syntheses of D-ribose 2-phosphate, 3-phosphate, 4-phosphate, 2,3-diphosphate, 3,4-diphosphate, 2,4-diphosphate, cyclic 2,3-phosphate, cyclic 3,4-phosphate, and cyclic 2,4-phosphate are described. Their 1H- and 31P-NMR data as well as their equi ...

1999

Hydraulic Surgical Cement

Jacques Lemaître, Pascale Van Landuyt

The cement for surgical purposes includes three components. The first component includes beta tertiary calciumphosphate beta-Ca3(PO4)2(beta-TCP) particles; and monocalcium phosphate Ca(H2PO4)2(MCPA) or monocalcium phosphate monohydrate Ca(H2PO4).H2O (MCPM) ...

1997

Transfecting mammalian cells: optimization of critical parameters affecting calcium-phosphate precipitate formation

Florian Maria Wurm, Martin Jordan

DNA-calcium phosphate co-precipitates arise spontaneously in supersaturated solutions. Highly effective precipitates for transfection purposes, however, can be generated only in a very narrow range of physico-chemical conditions that control the initiation ...

Oxford University Press1996

Gene therapy for amyotrophic lateral sclerosis (ALS) using a polymer encapsulated xenogenic cell line engineered to secrete hCNTF

Patrick Aebischer, Frédéric Kaplan

The gene therapy approach presented in this protocol employs a polymer encapsulated, xenogenic, transfected cell line to release human ciliary neurotrophic factor (hCNTF) for the treatment of Amyotrophic Lateral Sclerosis (ALS). A tethered device, containi ...

1996

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