SILICA–HYDROXYAPATITE NANOMETRIC COMPOSITES GROWN AT BOILING WATER TEMPERATURE

A. Sáenz, M. L. Montero and V. M. Castaño
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A. Sáenz: Escuela de Física and CICIMA, Universidad de Costa Rica, 2060 San José, Costa Rica;
M. L. Montero: Escuela de Química and CICIMA, Universidad de Costa Rica, 2060 San José, Costa Rica
V. M. Castaño: Instituto de Física, Universidad Nacional Autónoma de México, AP 1-1010 Querétaro, Qro CP 76 000, Mexico

Surface Review and Letters (SRL), 2002, vol. 09, issue 05n06, 1799-1802

Abstract: Silica–hydroxyapatite composites have been produced with a novel method. Particle size can be selected by the pH of the solution as well as crystallite morphology which also depends on pH. An ion reservoir is built by means of the complex solution Ca/EDTA (ethylenediaminetetra-acetic acid). The formation of hydroxyapatite (HAp) at low temperatures (boiling water) and in short periods of time (around 4 h) is achieved. It is thought that the production of silica promotes the nucleation of hydroxyapatite.

Date: 2002
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DOI: 10.1142/S0218625X02004529

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