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We evaluated the toxicity of graphite nanoplatelets (GNPs) in the model organism Caenorhabditis elegans. The GNPs resulted nontoxic by measuring longevity as well as reproductive capability end points. An imaging technique based on Fourier transform infrared spectroscopy (FT-IR) mapping was also developed to analyze the GNPs spatial distribution inside the nematodes. Conflicting reports on the in vitro antimicrobial properties of graphene-based nanomaterials prompted us to challenge the host-pathogen system C. elegans-Pseudomonas aeruginosa to assess these findings through an in vivo model.


Elena Zanni, Giovanni De Bellis, Maria P Bracciale, Alessandra Broggi, Maria L Santarelli, Maria S Sarto, Claudio Palleschi, Daniela Uccelletti. Graphite nanoplatelets and Caenorhabditis elegans: insights from an in vivo model. Nano letters. 2012 Jun 13;12(6):2740-4

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PMID: 22612766

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