Room Temperature Crystallization of Hydroxyapatite in Porous Silicon StructuresReportar como inadecuado

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Nanoscale Research Letters

, 11:497

Porous Semiconductors - Science and Technology


Porous silicon PS substrates, with different pore sizes and morphology, have been used to crystallize hydroxyapatite HA nano-fibers by an easy and economical procedure using a co-precipitation method at room temperature. In situ formation of HA nanoparticles, within the meso- and macroporous silicon structure, resulted in the formation of nanometer-sized hydroxyapatite crystals on-within the porous structure. The X-ray diffraction technique was used to determine the tetragonal structure of the crystals. Analysis-characterization demonstrates that under certain synthesis conditions, growth and crystallization of hydroxyapatite layer on-inside PS can be achieved at room temperature. Such composite structures expand the possibility of designing a new bio-composite material based on the hydroxyapatite and silicon synthesized at room temperature.

KeywordsPorous silicon Hydroxyapatite Co-precipitation method  Download fulltext PDF

Autor: M. Santana - J. O. Estevez - V. Agarwal - R. Herrera-Becerra


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