Development of silver-containing diamond-like carbon for biomedical applications. Part I: Microstructure characteristics, mechanical properties and antibacterial mechanisms

Wen Chien Lan, Shih Fu Ou, Ming Hong Lin, Keng Liang Ou, Meng Yuan Tsai

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Nanosilver containing diamond-like carbon films with different silver fractions were synthesized by the radio frequency magnetron sputtering using a single silver target in an atmosphere of Ar/CH4 mixture. The nanocrystalline silver clusters spontaneously segregated within an amorphous diamond-like carbon matrix. The amorphous-to-crystalline phase transformation resulted in both the surface hardness and electrical resistivity of the composite films decreasing with increasing the silver cluster size. The enlarged cluster size also increased the film surface roughness and water contact angle. All the films exhibited an anti-bacterium rate of over 93%, which evidenced that applying these composite films to anti-bacterium surface treatment is effective.

Original languageEnglish
Pages (from-to)4099-4104
Number of pages6
JournalCeramics International
Volume39
Issue number4
DOIs
Publication statusPublished - May 2013

Keywords

  • Anti-bacterium
  • B. Nanocomposite
  • Silver containing diamond-like carbon film
  • Sputtering

ASJC Scopus subject areas

  • Ceramics and Composites
  • Process Chemistry and Technology
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Materials Chemistry

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