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Induction of Apoptosis in Human Endothelial Cells by Nanodiamond Particles

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Carbon nanoparticles are a promising material which finds application in different fields in industry and medicine. For medical applications, biocompatibility of nanoparticles is of critical importance because a lot of medical implants are coated by carbon coating. Our previous results showed that nanoparticles may induce increased production of ROS by the cells so we decided to checked if nanopowders can induce apoptosis. Apoptosis was quantified by double-staining with acridine orange and ethidium bromide. For comparison, we identified apoptotic cells with annexin V-FITC/propidium iodide. Our data demonstrate that treatment of the cells with diamond nanopowders may induce apoptosis and necrosis and this effect is dependent on the time of treatment and concentration of the nanopowders. The highest level of apoptotic cells was observed after incubation with Ultrananocrystalline Detonation Diamond (UDD) suggesting that the size is the main determinant of nanoparticle cytotoxicity.
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Document Type: Research Article

Publication date: 2012-06-01

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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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