Preparation of nanometer-scale rod array of hydroxyapatite crystal

Satoshi Hayakawa, Yaqi Li, Kanji Tsuru, Akiyoshi Osaka, Eiji Fujii, Koji Kawabata

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Fabrication of nano- or micro-structured scaffolds to mimic structural and three-dimensional details of natural bone or teeth has been the subject of much interest, and this study proposes a new strategy for self-assembling one-dimensional hydroxyapatite (HAp) nanorods into organized superstructures. A nanometer-scale rod array of HAp having preferred orientation to the c-axis was successfully prepared simply by soaking calcium-containing silicate glass substrates in Na2HPO4 aqueous solution at 80 °C for various periods. Those HAp rods grew perpendicularly to the glass surface, and the crystallites covered the glass surface uniformly, resulting in a "dental enamel-like" rod array structure consisting of "pine-leaf-like" structure units.

Original languageEnglish
Pages (from-to)2152-2160
Number of pages9
JournalActa Biomaterialia
Volume5
Issue number6
DOIs
Publication statusPublished - Jul 1 2009

Keywords

  • Dental enamel
  • Hydroxyapatite
  • Nano-texture
  • Rod array
  • Self-assembly

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Biochemistry
  • Biomedical Engineering
  • Molecular Biology

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