A Method for Simultaneously Precipitating and Dispersing Nano-Sized Calcium Phosphate Suspensions

A.F. Lemos; A.H.S. Rebelo; J.H.G. Rocha; José Maria F. Ferreira

doi:10.4028/www.scientific.net/KEM.284-286.67

Paper Titles

Effect of Operation Conditions on HA Synthesized by the Hydrothermal Method
p.51

The Effect of Different Surface Modification Agents on the Dispersion of Nano-Hydroxyapatite (n-HA) Crystallites
p.55

Synthesis and Characterisation of Hydroxyapatite Nano-Rods/Whiskers
p.59

Protein Loading and Solubility of Apatite Hydrogel
p.63

A Method for Simultaneously Precipitating and Dispersing Nano-Sized Calcium Phosphate Suspensions
p.67

A New Synthetic Route to Calcium Polyphosphates
p.71

Control of Crystal Orientation of Hydroxyapatite by Imposing a High Magnetic Field
p.75

Preparation and Properties of Lanthanide Phosphates
p.79

Si, Zn-Modified Tricalcium Phosphates: A Phase Composition and Crystal Structure Study
p.83

HomeKey Engineering MaterialsKey Engineering Materials Vols. 284-286A Method for Simultaneously Precipitating and...

A Method for Simultaneously Precipitating and Dispersing Nano-Sized Calcium Phosphate Suspensions

Abstract:

Stable and relatively concentrated aqueous suspensions of nano-sized stoichiometric hydroxyapatite could be prepared by a precipitation method in the presence of suitable surface active agent (SAA). The method includes the precipitation, vacuum filtration and washing of the precipitated powders, followed by re-dispersion. It could be concluded that the added amount of the SAA should be enough to cover the primary particles surface, and that washing should be better carried out using a SAA solution. The method developed enables the precipitation of the powders and the preparation of suspensions, while significantly shortening the overall time required for colloidal processing consuming.

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Key Engineering Materials (Volumes 284-286)

Pages:

67-70

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.284-286.67

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Online since:

April 2005

Authors:

A.F. Lemos, A.H.S. Rebelo, J.H.G. Rocha, José Maria F. Ferreira

Keywords:

Calcium Phosphate, Colloidal Processing, Precipitation, Rheology

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