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Synthesis of hydroxyapatite nanostructures using microwave heating.

J L Cabrera¹, R Velázquez-Castillo, E M Rivera-Muñoz

¹CENAM- km 4.5 Carretera a los Cués, El Marqués, Querétaro, C.P 76246 México.

Journal of Nanoscience and Nanotechnology

|July 21, 2011

Summary

Researchers synthesized hydroxyapatite (HAp) nanoplates and nanofibers using microwave-assisted reactions. Glutamic acid concentration controlled nanostructure morphology, enabling potential applications in medicine and odontology.

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Area of Science:

Materials Science
Nanotechnology
Biomaterials

Background:

Hydroxyapatite (HAp) is a key biomaterial with applications in medicine and odontology.
Controlling the morphology of HAp nanostructures is crucial for optimizing their performance.

Purpose of the Study:

To synthesize hydroxyapatite (HAp) nanoplates and nanofibers.
To investigate the effect of glutamic acid concentration on HAp nanostructure morphology.
To explore the potential of these nanostructures in organic-inorganic composites.

Main Methods:

Microwave-assisted synthesis in pressurized Teflon vessels.
Utilized calcium nitrate, KOH, and K2HPO4 as precursors.
Varied glutamic acid concentration and reaction time to control morphology and size.

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Main Results:

Successfully synthesized HAp nanoplates and nanofibers.
Glutamic acid concentration significantly influenced nanostructure morphology.
Reaction time adjustments yielded appropriately sized nanofibers.
Characterization confirmed HAp phase (XRD, FTIR) and Ca/P ratio (EDX).

Conclusions:

Microwave-assisted synthesis in pressurized vessels is effective for HAp crystal formation.
Glutamic acid concentration is a critical factor in tailoring HAp nanostructure morphology.
The synthesized HAp nanostructures are suitable for developing advanced organic-inorganic composites for medical and dental applications.