Preparation of silver-containing hydroxyapatite powder by ultrasonic spray-pyrolysis technique and its antibacterial property

Yusuke Kawanobe, Michiyo Honda, Toshiisa Konishi, Minori Mizumoto, Yuri Habuto, Nobuyuki Kanzawa, Zhi Zhuang, Mamoru Aizawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We prepared silver-containing hydroxyapatite (Ag-HAp) powders by an ultrasonic spray-pyrolysis (USSP) technique and evaluated their antibacterial activity. Ag-HAp powders with Ag contents of 0, 1, 2, 5, and 20 mol% as nominal composition were prepared by the above USSP technique. The droplets of starting solutions were dried at 300 °C and then pyrolyzed at 850 °C to prepare the Ag-HAp powders. Ag-HAp powders showed a HAp single phase and were composed of spherical particles with a diameter of 0.5 - 3.0 μm. To evaluate the antibacterial activity of resulting powders, colony count method was performed using Staphylococcus aureus. Ag-HAp powders with the contents of Ag more than 5 mol% showed good antibacterial activity.

Original languageEnglish
Title of host publicationBioceramics 23
PublisherTrans Tech Publications Ltd
Pages678-683
Number of pages6
ISBN (Print)9783037852552
DOIs
Publication statusPublished - 2012
Event23rd Symposium and Annual Meeting of International Society for Ceramics in Medicine, ISCM 2011 - Istanbul, Turkey
Duration: Nov 6 2011Nov 9 2011

Publication series

NameKey Engineering Materials
Volume493-494
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

Other23rd Symposium and Annual Meeting of International Society for Ceramics in Medicine, ISCM 2011
CountryTurkey
CityIstanbul
Period11/6/1111/9/11

Keywords

  • Antibacterial property
  • Apatite microsphere
  • Silver-containing hydroxyapatite
  • Staphylococcus aureus
  • Ultrasonic spray-pyrolysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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