Evaluation on Cytotoxicity and Genotoxicity of the L-Glutamic Acid Coated Iron Oxide Nanoparticles

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To evaluate the cytotoxicity and genotoxicity of L-glutamic acid (Glu) coated Fe2O3 nanoparticles (hereafter refer as Glu@MNPs) on Chinese Hamster Lung (CHL) cells using Trypan blue dye exclusion assay, Oxidative stress markers, Comet assay and micronucleus (MN) assay. Results showed a low cytotoxicity with an IC50 was 254.739 μg/ml 36 h post incubation period in CHL cells. Furthermore, Cell redox status is slightly disturbed: Glu@MNPs exposure cause reactive oxygen species production, glutathione depletion and inactivation of some antioxidant enzymes: glutathione reduc-tase, superoxide dismutase, but not catalase. Moreover, no significant genotoxic response was observed in CHL cells over concentration ranges from 8 to 128 μg/mL for all exposure time periods. The results suggest that the Glu@MNPs show biocompatibility In Vitro.

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2012.5763

Publication date: March 1, 2012

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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