The inhibitory capability of decorative plated coatings for the growth of bacteria

Zhi Hong Zhao, Kazuyuki Hasebe, Yoshikazu Sakagami, Tetsuya Osaka

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The antibacterial activity of various electroplated coatings (cobalt, zinc, copper, and cobalt-containing alloys of nickel, zinc, chromium) was determined by a 'Drop-method' antibacterial experiment against pathogenic bacteria (gram-positive bacterial S. aureus, MRSA, and gram-negative bacteria E. coli, P aeruginosa). It was found that all of them possessed a higher antibacterial activity than stainless steel. The ralationship between the inhibitory capability for the growth of bacteria and the rest potential of the electroplated coatings was also investigated. A significant antibacterial activity of the coatings was apparently displayed by a rest-potential shift to more negative values. It was suggested that all of the tested bacteria fell closely within the lethal range when the rest potentials were lower than -543 mV. However, some amount of metal ions dissolved from various from various electroplated coatings was measured; accordingly, the inhibitory capability of the simulated dissolution concentrations of metal ions the growth of bacteria is discussed.

Original languageEnglish
Pages (from-to)1631-1637
Number of pages7
JournalBulletin of the Chemical Society of Japan
Volume70
Issue number7
DOIs
Publication statusPublished - 1997

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Bacteria
Coatings
Metal ions
Stainless Steel
Chromium
Cobalt
Nickel
Escherichia coli
Zinc
Copper
Dissolution
Experiments

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

The inhibitory capability of decorative plated coatings for the growth of bacteria. / Zhao, Zhi Hong; Hasebe, Kazuyuki; Sakagami, Yoshikazu; Osaka, Tetsuya.

In: Bulletin of the Chemical Society of Japan, Vol. 70, No. 7, 1997, p. 1631-1637.

Research output: Contribution to journalArticle

Zhao, Zhi Hong ; Hasebe, Kazuyuki ; Sakagami, Yoshikazu ; Osaka, Tetsuya. / The inhibitory capability of decorative plated coatings for the growth of bacteria. In: Bulletin of the Chemical Society of Japan. 1997 ; Vol. 70, No. 7. pp. 1631-1637.
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