In recent years, there has been an increased interest in the design and use of iron oxide materials with nanoscale dimensions for magnetic, catalytic, biomedical, and electronic applications. The increased manufacture and use of iron oxide nanoparticles (IONPs) in consumer products as well as industrial processes is expected to lead to the unintentional release of IONPs into the environment. The impact of IONPs on the environment and on biological species is not well understood but remains a concern due to the increased chemical reactivity of nanoparticles relative to their bulk counterparts. This study focuses on understanding factors that need to be considered when IONPS are placed in the environment. We show the influence of IONPs on microorganisms in the presence and absence of dissolved organic carbon (DOC). The results shed light on the transformations IONPs undergo in the environment and the nature of the potential mutagenic impact on biological cells.

Influence of the engineered iron oxide nanoparticles on the growth and mutagenicity of microorganisms

253rd National Meeting (2017)

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