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Aggregation of iron-containing fullerenols in aqueous solutions

  • Organic Synthesis and Industrial Organic Chemistry
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Abstract

Endometallofullerenols Fe@C60(OH)30 were synthesized by a new procedure using a special molecular precursor in the course of electric arc evaporation of a composite carbon electrode. Aqueous solutions of fullerenols Fe@C60(OH)30 were studied by small-angle neutron scattering (SANS) and viscometry under the conditions of transition from dilute to concentrated systems in two media: acidic (pH 3.7) and weakly alkaline (pH 7.8). In a weakly alkaline medium, fullerenols form relatively dense clusters (correlation radius R C ~ 17 nm), and in acidic medium, less dense structures of size R C ~ 18 nm in the concentration interval с = 0.5–1.4 wt %. The mechanisms of aggregation of fullerenol molecules in aqueous solutions are discussed. The water-soluble derivatives Fe@C60(OH)30 obtained show promise for biomedical applications in magnetic resonance imaging as contrasting agents that are potentially less toxic than presently used contrasts based on gadolinium chelate complexes.

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Authors and Affiliations

  1. Konstantinov Institute of Nuclear Physics, National Research Centre Kurchatov Institute, Orlova Roshcha, Gatchina, Leningrad oblast, 188300, Russia

    A. A. Szhogina, Yu. V. Kul’velis, V. T. Lebedev & V. P. Sedov

Authors
  1. A. A. Szhogina
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  2. Yu. V. Kul’velis
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  3. V. T. Lebedev
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  4. V. P. Sedov
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Corresponding author

Correspondence to A. A. Szhogina.

Additional information

Original Russian Text © A.A. Szhogina, Yu.V. Kul’velis, V.T. Lebedev, V.P. Sedov, 2015, published in Zhurnal Prikladnoi Khimii, 2015, Vol. 88, No. 12, pp. 1764–1769.

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Szhogina, A.A., Kul’velis, Y.V., Lebedev, V.T. et al. Aggregation of iron-containing fullerenols in aqueous solutions. Russ J Appl Chem 88, 2009–2014 (2015). https://doi.org/10.1134/S10704272150120162

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  • DOI: https://doi.org/10.1134/S10704272150120162

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