The study of antimicrobial activity and preservative effects of nanosilver ingredient

Kyung Hwan Cho, Jong Eun Park, Tetsuya Osaka, Soo Gil Park

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644 Citations (Scopus)


In this study, we investigated the antimicrobial activity of silver nanoparticles (Ag-NPs) and platinum nanoparticles (Pt-NPs) aqueous solution, which were prepared using different stabilizer, such as sodium dodecylsulfate (SDS) and poly-(N-vinyl-2-pyrrolidone) (PVP), for Staphylococcus aureus (S. aureus) and Escherichia coli (E.coli) by measuring the minimum inhibitory concentration (MIC). Antimicrobial effect of Ag-NPs for S. aureus and E. coli was investigated using cup diffusion method. The growth of Gram-positive (S. aureus) and Gram-negative (E. coli) bacteria were inhibited by Ag-NPs. The MIC of Ag-NPs for S. aureus and E. coli were 5 and 10 ppm, respectively. But the Au-NPs stabilized with SDS did not show antimicrobial activity. Also, the Pt-NPs stabilized with PVP (or SDS) did not show antimicrobial activity for the test organisms.

Original languageEnglish
Pages (from-to)956-960
Number of pages5
JournalElectrochimica Acta
Issue number5
Publication statusPublished - 2005 Nov 10



  • Antimicrobial activity
  • Disinfection
  • Platinum nanoparticles
  • Silver nanoparticles
  • Stabilizer

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

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