Preparation of nanometer-scale rod array of hydroxyapatite crystal

作者：Hayakawa Satoshi^*; Li Yaqi; Tsuru Kanji; Osaka Akiyoshi; Fujii Eiji; Kawabata Koji

来源：Acta Biomaterialia, 2009, 5(6): 2152-2160.

DOI：10.1016/j.actbio.2009.02.018

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

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 Na(2)HPO(4) aqueous solution at 80 degrees 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.

• 出版日期2009-7