Antimicrobial effect of surgical masks coated with nanoparticles

Y. Li, Hang Mei Polly Leung, L. Yao, Q. W. Song, E. Newton

Research output: Journal article publicationJournal articleAcademic researchpeer-review

499 Citations (Scopus)


This study assessed the antimicrobial activity of nanoparticles (consisting of a mixture of silver nitrate and titanium dioxide) and nanoparticle-coated facemasks to protect against infectious agents. The minimum inhibitory concentrations of the nanoparticles against Escherichia coli and Staphylococcus aureus were 1/128 and 1/512, respectively. The antibacterial activity of nanoparticle-coated masks was quantified according to the procedures of AATCC 100-1999. A 100% reduction in viable E. coli and S. aureus was observed in the coated mask materials after 48 h of incubation. Skin irritation was not observed in any of the volunteers who wore the facemasks. Nanoparticles show promise when applied as a coating to the surface of protective clothing in reducing the risk of transmission of infectious agents.
Original languageEnglish
Pages (from-to)58-63
Number of pages6
JournalJournal of Hospital Infection
Issue number1
Publication statusPublished - 1 Jan 2006


  • Antimicrobial
  • E. coli
  • Nanoparticles
  • S. aureus

ASJC Scopus subject areas

  • Microbiology (medical)
  • Infectious Diseases


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