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Escherichia coli Bacteria Develop Adaptive Resistance to Antibacterial ZnO Nanoparticles
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.ORCID iD: 0000-0003-2873-7875
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.ORCID iD: 0000-0001-8644-7249
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.ORCID iD: 0000-0001-9137-3440
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2018 (English)In: Advanced Biosystem, ISSN 2366-7478, Vol. 2, no 5, article id 1800019Article in journal (Refereed) Published
Abstract [en]

Antibacterial agents based on nanoparticles (NPs) have many important applications, e.g., for the textile industry, surface disinfection, wound dressing, water treatment, and food preservation. Because of their prevalent use it is important to understand whether bacteria could develop resistance to such antibacterial NPs similarly to the resistance that bacteria are known to develop to antibiotics. Here, it is reported that Escherichia coli(E. coli) develops adaptive resistance to antibacterial ZnO NPs after several days' exposure to the NPs. But, in contrast to antibiotics‐resistance, the observed resistance to ZnO NPs is not stable—after several days without exposure to the NPs, the bacteria regain their sensitivity to the NPs' antibacterial properties. Based on the analyses it is suggested that the observed resistance is caused by changes in the shape of the bacteria and the expressions of membrane proteins. The findings provide insights into the response of bacteria to antibacterial NPs, which is important to elucidate for designing and evaluating the risk of applications based on antibacterial NPs.

Place, publisher, year, edition, pages
John Wiley & Sons, 2018. Vol. 2, no 5, article id 1800019
National Category
Nano Technology
Identifiers
URN: urn:nbn:se:miun:diva-34436DOI: 10.1002/adbi.201800019ISI: 000446970000008Scopus ID: 2-s2.0-85065053901OAI: oai:DiVA.org:miun-34436DiVA, id: diva2:1249197
Available from: 2018-09-18 Created: 2018-09-18 Last updated: 2019-07-08Bibliographically approved

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Zhang, RenyunCarlsson, FredrikEdman, MattiasHummelgård, MagnusJonsson, Bengt-GunnarBylund, DanOlin, Håkan

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Zhang, RenyunCarlsson, FredrikEdman, MattiasHummelgård, MagnusJonsson, Bengt-GunnarBylund, DanOlin, Håkan
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