Impact of a physiological medium on the aggregation state of C<Subscript>60</Subscript> and C<Subscript>70</Subscript> fullerenes期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Impact of a physiological medium on the aggregation state of C60 and C70 fullerenes

Authors:	E. A. Kyzyma M. O. Kuzmenko L. A. Bulavin V. I. Petrenko I. V. Mikheev M. A. Zabolotnyi M. Kubovcikova P. Kopcansky M. V. Korobov M. V. Avdeev V. L. Aksenov

Affiliation:	1.Laboratory of Neutron Physics,Joint Institute of Nuclear Research,Dubna, Moscow oblast,Russia;2.Taras Shevchenko National University of Kyiv,Kyiv,Ukraine;3.Moscow State University,Moscow,Russia;4.Institute of Experimental Physics,Slovak Academy of Sciences,Ko?ice,Slovakia;5.Research Center “Kurchatov Institute”,Moscow,Russia

Abstract:	The C₆₀ and C₇₀ fullerene-cluster size distribution in aqueous solutions and a physiological medium is studied via dynamic light scattering. The initial aqueous solutions of fullerenes obtained via different methods are found to contain clusters with a characteristic size of about 100 nm. The additional aggregation of fullerenes is observed after their transfer into a physiological medium (0.9% NaCl) and is established to depend on the preparation method. The cluster-size distribution in a fullerene–pectic-acid mixture is found to vary in water and a physiological medium. The results reveal the need for additional studies of the structure and properties of C₆₀ and C₇₀ molecules, as well as their complexes with medicines, in a physiological medium for medical applications.

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