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Agglomeration control of hydroxyapatite nano-crystals grown in phase-separated microenvironments

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Abstract

Materials synthesis processes that require high temperatures consume large quantities of energy that generate an environmental burden. We attempted to synthesize hydroxyapatite (HAp) nano-crystals without firing or melting. “Water in oil” (W/O) emulsions were employed as microreactors for HAp formation. The surfactant-bounded water mediated HAp crystal nucleation, and HAp nano-crystallites were obtained. The obtained particles were aggregates composed of plate-like nano-crystals and monodisperse tiny crystals. Utilization of the W/O emulsions resulted in tunable nucleation frequency and the reactant provision, and yielded HAp nano-crystals with characteristic agglomeration properties.

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Authors and Affiliations

  1. National Institute of Advanced Industrial Science and Technology (AIST), Anagahora 2266-98, Shimoshidami, Moriyama-ku, Nagoya, 463-8560, Japan

    Kimiyasu Sato, Yuji Hotta, Takaaki Nagaoka, Masaki Yasuoka & Koji Watari

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  1. Kimiyasu Sato
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  2. Yuji Hotta
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  3. Takaaki Nagaoka
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  4. Masaki Yasuoka
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  5. Koji Watari
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Correspondence to Kimiyasu Sato.

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Sato, K., Hotta, Y., Nagaoka, T. et al. Agglomeration control of hydroxyapatite nano-crystals grown in phase-separated microenvironments. J Mater Sci 41, 5424–5428 (2006). https://doi.org/10.1007/s10853-006-0258-6

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  • DOI: https://doi.org/10.1007/s10853-006-0258-6

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