Preparation of nanotextured and nanofibrous hydroxyapatite through dicalcium phosphate with gelatin

Kozue Furuichi, Yuya Oaki, Hiroaki Imai

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86 Citations (Scopus)

Abstract

Organized nanostructures of hydroxyapatite (HAp) were produced using a novel preparation route through the topotactic transition of dicalcium phosphate dihydrate (DCPD) containing gelatin molecules. A nanoscale texture of dicalcium phosphate (DCP) was formed by the dehydration of DCPD prepared in gelatin gel containing phosphate ions. A three-dimensionally oriented framework of HAp consisting of ca. 20 nm grains was prepared by a rapid hydrolysis of the nanotextured DCP with a sodium hydroxide solution. Nanoscale HAp fibers elongated along the c axis with a diameter of ca. 50 nm were also obtained by a moderate hydrolysis with ammonia water. The hierarchical architectures of the nanostructured HAp were successfully achieved by the phase transition associated with the specific interaction of the organic molecules.

Original languageEnglish
Pages (from-to)229-234
Number of pages6
JournalChemistry of Materials
Volume18
Issue number1
DOIs
Publication statusPublished - 2006 Jan 10

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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