Journal of Materials Science

, Volume 46, Issue 20, pp 6734–6743 | Cite as

PVC silver zeolite composites with antimicrobial properties

  • Daniela ZampinoEmail author
  • Tiziana Ferreri
  • Concetto Puglisi
  • Monique Mancuso
  • Renata Zaccone
  • Roberto Scaffaro
  • Danila Bennardo


Poly(vinyl chloride) (PVC) composites containing increasing amounts (2–20%, w/w) of silver zeolite (SZ) were prepared by melt mixing and characterized by thermal, mechanical and rheological analyses. The addition of large amount of SZ did not influence the processability and the formability of the composites, if compared to neat plasticized PVC. The antibacterial activity of PVC SZ composites was tested on Escherichia coli and Staphylococcus epidermidis and resulted promising both in culture broth and on agar plate and also in sterile urine seeded with these strains, for simulation purposes. In sterile urine, composites induced a significant reduction (4–6 log units) of viability of both strains already at 24 h, inhibiting E. coli growth up to 20 days, whereas their antimicrobial action against S. epidermidis vanished within 5 days. The silver release in sterile urine was determined up to 20 days. It was found that the highest amount of silver ions was released during the first day (0.365 ppm), whilst from days 6 to 20 the silver release decreased, reaching a steady daily mean value of 0.02 ppm.


Zeolite Composite Film Inhibition Zone Bacterium Concentration Sterile Urine 



Financial support from the National Council Research (CNR, Rome) and from a POR Project (Sicilian Regional funds, Misura 3.14, grant no. 1999.IT.16.1.PO.011/3.14/5.2.13/0279) is gratefully acknowledged.


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Daniela Zampino
    • 1
    Email author
  • Tiziana Ferreri
    • 1
  • Concetto Puglisi
    • 1
  • Monique Mancuso
    • 2
  • Renata Zaccone
    • 2
  • Roberto Scaffaro
    • 3
  • Danila Bennardo
    • 4
  1. 1.Institute of Chemistry and Technology of PolymersCNRCataniaItaly
  2. 2.Institute for Coastal Marine EnvironmentCNRMessinaItaly
  3. 3.Department of Chemical, Process and Materials EngineeringUNIPAPalermoItaly
  4. 4.Milena Pharmaceutical SrlAgrigentoItaly

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