Magnetic nanoparticles (NPs) are suitable candidates for various medical and biological applications, despite some concerns that they may have negative impacts on human health. In this study, the toxicity effects of m...
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Magnetic nanoparticles (NPs) are suitable candidates for various medical and biological applications, despite some concerns that they may have negative impacts on human health. In this study, the toxicity effects of magnetic NPs consisting of α”-Fe16N2captured and bioaccumulated by the nematodeCaenorhabditis elegans(C. elegans) in the early larval stage are evaluated. The choice of α”-Fe16N2NPs is based on their good structural stability when stored in saline solution and high magnetic performance. The uptake and bioaccumulation of α”-Fe16N2NPs in intestinal cells ofC. eleganswas evidenced by transmission electron microscopy. After exposure to NPs up to 40 mg mL−1,C. eleganslarval development, survival, feeding behavior, defecation cycles, movement and reproduction were monitored.C. eleganssurvival and other monitored behavioral evolutions do not show significant changes, except for a slight statistical reduction in the reproductive profile. Therefore, the present results are promising and very encouraging for investigations of applications of α”-Fe16N2NPs in the biomedical area.
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