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Abstract
A novel method to produce pure nano-hydroxyapatite from silica suspension was devised. Its main advantage consists in allowing the control of the reaction rate of calcium and phosphate ions through the use of a chelate, namely EDTA. Further control of acidic conditions allows both the particle size and the shape to vary.
Acknowledgements
A. Sáenz acknowledges the financial support obtained from ICTP via CLAF-M for research visits to Mexico. We are indebted to Dr Ventura Rodriguez-Lugo of CUV-BUAP and Dr Gilberto Mondragon-Galicia, of Instituto Nacional de Investigaciones Nucleares (ININ), Mexico for their technical support and useful discussions.