Mechanistic lessons learned from studies of planktonic bacteria with metallic nanomaterials: implications for interactions between nanomaterials and biofilm bacteria

Metal and metal-oxide nanoparticles (NPs) are used in numerous applications and have high likelihood of entering engineered and natural environmental systems. Careful assessment of the interaction of these NPs with bacteria, particularly biofilm bacteria, is necessary. This perspective discusses mec...

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Published in:Frontiers in microbiology Vol. 6; p. 677
Main Authors: Saleh, Navid B, Chambers, Bryant, Aich, Nirupam, Plazas-Tuttle, Jaime, Phung-Ngoc, Hanh N, Kirisits, Mary Jo
Format: Journal Article
Language:English
Published: Switzerland Frontiers Media S.A 17-07-2015
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Summary:Metal and metal-oxide nanoparticles (NPs) are used in numerous applications and have high likelihood of entering engineered and natural environmental systems. Careful assessment of the interaction of these NPs with bacteria, particularly biofilm bacteria, is necessary. This perspective discusses mechanisms of NP interaction with bacteria and identifies challenges in understanding NP-biofilm interaction, considering fundamental material attributes and inherent complexities of biofilm structure. The current literature is reviewed, both for planktonic bacteria and biofilms; future challenges and complexities are identified, both in light of the literature and a dataset on the toxicity of silver NPs toward planktonic and biofilm bacteria. This perspective aims to highlight the complexities in such studies and emphasizes the need for systematic evaluation of NP-biofilm interaction.
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This article was submitted to Microbiological Chemistry and Geomicrobiology, a section of the journal Frontiers in Microbiology
Reviewed by: Patrick K. H. Lee, City University of Hong Kong, Hong Kong; Vishal Shah, Dowling College, USA; Ramesh K. Goel, University of Utah, USA
These authors have contributed equally to this work.
Edited by: Boris Lau, University of Massachusetts Amherst, USA
ISSN:1664-302X
1664-302X
DOI:10.3389/fmicb.2015.00677