Bioceramics Development and Applications

A. Osaka

Publications

• Research Article
  A Novel Method of Preparing a Nanometer-Scale Rod Array of Hydroxyapatite Crystals
  Author(s): S. Hayakawa, Y. Li, Y. Shirosaki, A. Osaka, E. Fujii and K. KawabataS. Hayakawa, Y. Li, Y. Shirosaki, A. Osaka, E. Fujii and K. Kawabata
  
  This study proposed a new strategy for preparing self-assembling one-dimensional HAp nanorods into organized superstructures. We employed glass of a few specific compositions in the system Na2O-CaO-SiO2 because it may yield Si-OH groups on the surface when soaked in an aqueous system, and their formation is one of the key factors to induce apatite nucleation. A nanometerscale rod array of HAp having preferred orientation to the c-axis was successfully prepared simply by soaking the soda-lime silica glass substrates in Na2HPO4 aqueous solution at 80 °C. Those HAp rods grew up perpendicularly to the glass surface, and the crystallites covered glass surface uniformly, resulting in “dental enamel-likeâ€? rod array structure. The present procedure is significant as it allows to design biomimetic materials and therapeutic agents with applicable both .. Read More»
  

  Abstract PDF