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Open Access Carbon Nano-Onions as Nontoxic and High-Fluorescence Bioimaging Agent in Food Chain—An In Vivo Study from Unicellular E. coli to Multicellular C. elegans

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Carbon nano-onions, as a newly-emergent member of the carbon family, have attracted attention in its both dry and wet applications. Here we report in vivo effects of water-soluble carbon nano-onions (wsCNOs) introduced in common food web of two model organisms: unicellular Escherichia coli (E. coli) and multicellular Caenorhabditis elegans (C. elegans). At first, CNOs are fed to E. coli and, subsequently, the E. coli are fed to C. elegans. It is found that wsCNOs serve as highly-fluorescent bioimaging agent. The results do not reflect any toxic effect of wsCNOs on the growth of these organisms suggesting new avenues in nanotoxicology research and biomedical application including drug delivery.

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Keywords: BIOIMAGING; CAENORHABDITIS ELEGANS; CARBON NANO-ONIONS; ESCHERICHIA COLI; FLUORESCENCE; NON-TOXIC; WATER SOLUBLE

Document Type: Research Article

Publication date: 01 June 2012

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  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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