Preparation of low-crystalline apatite nanoparticles and their coating onto quartz substrates

Masakazu Kawashita, Koji Taninai, Zhixia Li, Kunio Ishikawa, Yasuhiro Yoshida

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We prepared low-crystalline apatite nanoparticles and coated them onto a surface of a Au/Cr-plated quartz substrate by the electrophoretic deposition (EPD) method or by using a self-assembled monolayer of 11-mercaptoundecanoic acid (SAM method). Low-crystalline apatite nanoparticles around 10 nm in size with extremely low contents of undesirable residual products were obtained by adding (NH4)2HPO4 aqueous droplets into a modified synthetic body fluid solution that contained Ca(CH3COO) 2. The apatite nanoparticles were successfully coated by either the EPD method or the SAM method; the nanoparticle coating achieved by the SAM method was more uniform than that achieved by the EPD method. The present SAM method is expected to be a promising technique for obtaining a quartz substrate coated with apatite nanoparticles, which can be used as a quartz crystal microbalance device.

Original languageEnglish
Pages (from-to)1355-1362
Number of pages8
JournalJournal of Materials Science: Materials in Medicine
Issue number6
Publication statusPublished - Jun 2012

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Bioengineering
  • Biomaterials
  • Biomedical Engineering


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