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Nanostructured Carbon Beads—Properties and Biomedical Applications

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In this study, amorphous carbonaceous nanoparticles were prepared by a simple hydrothermal process using glucose as precursor. The nearly perfect spherical particles (beads) with the dimensions in the range of 10–500 nm were obtained depending on the main process parameters (precursor concentration, temperature, and time). The particles size, surface morphology, structure, and composition have been examined by TEM, SEM, X-ray diffraction, XPS, FTIR and Raman spectroscopy. These amorphous carbonaceous nanobeads (a-CNBs) have been found nontoxic in vitro with a variety of cultured cell lines. The size-dependent effect of a-CNBs addition on cell function has been observed. For example, a-CNBs can, in some cases, substantially increase interleukin-12 (IL-12) production by bone marrow dendritic cells. It has been further demonstrated that a-CNBs can be modified with fluorescent dye molecules or loaded with anti-cancer drugs for bioimaging or therapeutic purposes, respectively. The results of these tests and the strategies for the particle preparation and functionalization for biomedical applications have been discussed.
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Document Type: Research Article

Publication date: 2011-10-01

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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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