volume 44, issue 4, P1484-1489 2010
DOI: 10.1021/es9030497
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Bing Wu, Yin Wang, Yi-Hsuan Lee, Angela Horst, Zhipeng Wang, Da-Ren Chen, Radhakrishna Sureshkumar, Yinjie J. Tang

Abstract: The antimicrobial activity of ZnO nanoparticles (NPs) was investigated under aquatic and aerosol exposure modes. ZnO NPs in aquatic media aggregated to micrometer-sized particles and did not interact with microorganisms effectively. Hence, the inhibition of microbial growth by nano-ZnO NPs (e.g., Mycobacterium smegmatis and Cyanothece 51142) in aquatic media was mainly attributable to dissolved zinc species. Shewanella oneidensis MR-1 and Escherichia coli were able to produce large amounts of extracellular pol…

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