Nanoparticles: Zinc Oxide Nanoparticles Induce Cell Filamentation in Escherichia coli (Part. Part. Syst. Charact. 4/2013)

Authors

  • Cindy Gunawan,

    1. ARC Centre of Excellence for Functional Nanomaterials, School of Chemical Engineering, School of Chemical Engineering The University of New South Wales, Sydney, NSW, Australia
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  • Wey Yang Teoh,

    1. Clean Energy and Nanotechnology (CLEAN) Laboratory, School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong S. A. R.
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  • Ricardo,

    1. ARC Centre of Excellence for Functional Nanomaterials, School of Chemical Engineering, School of Chemical Engineering The University of New South Wales, Sydney, NSW, Australia
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  • Christopher P. Marquis,

    1. School of Biotechnology and Biomolecular Sciences, The University of New South Wales, Sydney, NSW, Australia
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  • Rose Amal

    Corresponding author
    • ARC Centre of Excellence for Functional Nanomaterials, School of Chemical Engineering, School of Chemical Engineering The University of New South Wales, Sydney, NSW, Australia
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Abstract

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Zinc oxide nanoparticles induce transient morphological transformation in Escherichia coli from the native ∼ 2–4 μm rods to 20–40 μm filamentous cells as reported by Rose Amal and co-workers. The filamentation is induced only in response to the solid ZnO residues, while non-observable in the presence of the leached zincpeptide complexes. Free zinc ions induce severe cell rupturing.

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