Assessment of the Antiviral Properties of Zeolites Containing Metal Ions

Kelly R. Bright, Enue E. Sicairos-Ruelas, Patricia M. Gundy, Charles P. Gerba

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


The antiviral properties of zeolite (sodium aluminosilicate) powders amended with metal ions were assessed using human coronavirus 229E, feline infectious peritonitis virus (FIPV), and feline calicivirus F-9. Zeolites containing silver and silver/copper caused significant reductions of coronavirus 229E after 1 h in suspension. The silver/copper combination yielded a >5.13-log10 reduction within 24 h. It was also the most effective (>3.18-log10) against FIPV after 4 h. Other formulations were ineffective against FIPV. On plastic coupons with incorporated silver/copper-zeolites, >1.7-log10 and >3.8-log10 reductions were achieved for coronavirus 229E and feline calicivirus within 24 h, respectively. Silver/copper zeolite reduced titers of all viruses tested, suggesting that it may be effective against related pathogens of interest [i.e., SARS coronavirus, other coronaviruses, human norovirus (calicivirus)]. Of note, it was effective against both enveloped and nonenveloped viruses. Metal-zeolites could therefore possibly be used in applications to reduce virus contamination of fomites and thus the spread of viral diseases.

Original languageEnglish (US)
Pages (from-to)37-41
Number of pages5
JournalFood and Environmental Virology
Issue number1
StatePublished - Mar 1 2009


  • Antiviral
  • Calicivirus
  • Copper
  • Coronavirus
  • Fomites
  • Silver

ASJC Scopus subject areas

  • Epidemiology
  • Food Science
  • Health, Toxicology and Mutagenesis
  • Virology


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