C60 fullerene aggregation in aqueous solution

Yuriy I. Prylutskyy, Anatoly S. Buchelnikov, Dmitry P. Voronin, Viktor V. Kostjukov, Uwe Ritter, John A. Parkinson, Maxim P. Evstigneev

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58 Citations (Scopus)

Abstract

In the present work we develop a novel approach for quantification of the energetics of C-60 fullerene aggregation in aqueous media in terms of equilibrium aggregation constant K-F. In particular, it is shown that the experimental determination of the magnitude of K-F is possible only within the framework of the 'up-scaled aggregation model', considering the C60 fullerene water solution as a solution of fullerene clusters. Using dynamic light scattering (DLS) data we report the value, K-F = 56 000 M-1, which is in good agreement with existing theoretical estimates and the results of energetic analyses. It is suggested that the proposed 'up-scaled model' may be used in any instances of non-specific aggregation resulting in formation of large spherical particles. The measurement of the translational diffusion coefficient and the dimensions of the light scattering particles using a DLS approach with respect to C-60 fullerene aggregates is found to contain significant systematic errors originating from the interaction effect that is well-known for micellar solutions. As a result, corrections to the equations associated with DLS data are proposed.

Original languageEnglish
Pages (from-to)9351-9360
Number of pages10
JournalPhysical Chemistry Chemical Physics
Volume15
Issue number23
Early online date16 Apr 2013
DOIs
Publication statusPublished - 2013

Keywords

  • WATER
  • ATOMIC-FORCE MICROSCOPY
  • NANOPARTICLES
  • POLYDISPERSITY
  • LIGHT-SCATTERING
  • FREE-ENERGY
  • DNA
  • PHENOTHIAZINE DRUGS
  • ASSOCIATION
  • SUSPENSIONS

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  • Cite this

    Prylutskyy, Y. I., Buchelnikov, A. S., Voronin, D. P., Kostjukov, V. V., Ritter, U., Parkinson, J. A., & Evstigneev, M. P. (2013). C60 fullerene aggregation in aqueous solution. Physical Chemistry Chemical Physics, 15(23), 9351-9360. https://doi.org/10.1039/c3cp50187f