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Surface Induced Calcium Phosphate Nucleation and Growth

Published online by Cambridge University Press:  15 February 2011

L. Song ,
A. A. Campbell ,
X. S. Li  and
B. C. Bunker
L. Song
Affiliation:
Pacific Northwest National Laboratory, Materials Sciences Department, Richland, WA 99352
A. A. Campbell
Affiliation:
Pacific Northwest National Laboratory, Materials Sciences Department, Richland, WA 99352
X. S. Li
Affiliation:
Pacific Northwest National Laboratory, Materials Sciences Department, Richland, WA 99352
B. C. Bunker
Affiliation:
Pacific Northwest National Laboratory, Materials Sciences Department, Richland, WA 99352
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Abstract

Calcium phosphate nucleation on colloidal oxide surfaces, such as TiO2, SiO2 and Al2MO3, has been studied as a model system to understand the role of surface chemistry on crystal nucleation kinetics and phase formation. The nucleation induction times have been measured using Constant Composition (CC) technique and calcium phosphate phases formation have been determined mainly by X-ray diffraction. The results indicated TiO2 not only significantly reduces the nucleation induction time and interfacial energy but also stimulates octacalcium phosphate formation over dicalcium phosphate dihydrate. SiO2 and Al2O3 have little effect on both nucleation kinetics and phase formation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 414: Symposium Z – Thin Films and Surfaces for Bioactivity and Biomedical Applications , 1995 , 35
Copyright
Copyright © Materials Research Society 1996

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References

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