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Copper-containing glass ceramic with high antimicrobial efficacy

Author

Listed:
  • Timothy M. Gross

    (Corning Incorporated)

  • Joydeep Lahiri

    (Corning Incorporated)

  • Avantika Golas

    (Corning Incorporated)

  • Jian Luo

    (Corning Incorporated)

  • Florence Verrier

    (Corning Incorporated)

  • Jackie L. Kurzejewski

    (Corning Incorporated)

  • David E. Baker

    (Corning Incorporated)

  • Jie Wang

    (Argonne National Laboratory)

  • Paul F. Novak

    (Corning Incorporated)

  • Michael J. Snyder

    (Corning Incorporated)

Abstract

Hospital acquired infections (HAIs) and the emergence of antibiotic resistant strains are major threats to human health. Copper is well known for its high antimicrobial efficacy, including the ability to kill superbugs and the notorious ESKAPE group of pathogens. We sought a material that maintains the antimicrobial efficacy of copper while minimizing the downsides – cost, appearance and metallic properties – that limit application. Here we describe a copper-glass ceramic powder as an additive for antimicrobial surfaces; its mechanism is based on the controlled release of copper (I) ions (Cu1+) from cuprite nanocrystals that form in situ in the water labile phase of the biphasic glass ceramic. Latex paints containing copper-glass ceramic powder exhibit ≥99.9% reduction in S. aureus, P. aeruginosa, K. aerogenes and E. Coli colony counts when evaluated by the US EPA test method for efficacy of copper-alloy surfaces as sanitizer, approaching that of benchmark metallic copper.

Suggested Citation

  • Timothy M. Gross & Joydeep Lahiri & Avantika Golas & Jian Luo & Florence Verrier & Jackie L. Kurzejewski & David E. Baker & Jie Wang & Paul F. Novak & Michael J. Snyder, 2019. "Copper-containing glass ceramic with high antimicrobial efficacy," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09946-9
    DOI: 10.1038/s41467-019-09946-9
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