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Bactericidal activity and in vitro cytotoxicity assessment of hydroxyapatite containing gold nanoparticles

  • R. Nirmala
  • , Hye Min Park
  • , D. Kalpana
  • , Hyung Sub Kang
  • , R. Navamathavan
  • , Yang Soo Lee
  • , Hak Yong Kim*
  • *Corresponding author for this work
  • Jeonbuk National University

Research output: Contribution to journalJournal articlepeer-review

Abstract

Hydroxyapatite (HA) containing gold (Au) nanoparticles was synthesized for the biomedical applications. The morphology, structure and thermal properties of the HA containing Au nanoparticles were characterized by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), energy dispersive X-ray (EDX) spectroscopy, X-ray diffraction (XRD), Fouriertransform infrared spectroscopy (FT-IR) and thermogravimetry (TGA). XRD patterns clearly revealed the formation of HA-Au composite nanoparticles. TEM observation showed that the Au nanoparticles had an average size of 5 nm and were incorporated into HA powder very well. Bactericidal activity of HA-Au with Au nanoparticles immobilized in HA was investigated. The adhesion, viability and proliferation properties of HA containing Au nanoparticles and the differentiation of osteoblast were studied for in vitro cell compatibility of the HA containing Au nanoparticles. Our results showed that HA containing Au nanoparticles were cytotoxic to the human osteoblastic cells.

Original languageEnglish
Pages (from-to)342-350
Number of pages9
JournalJournal of Biomedical Nanotechnology
Volume7
Issue number3
DOIs
StatePublished - 2011.06

Keywords

  • Au nanoparticles
  • Bactericidal
  • Cell culture
  • Composite materials
  • Cytotoxicity
  • Hydroxyapatite
  • Wet precipitation

Quacquarelli Symonds(QS) Subject Topics

  • Medicine

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