Hydration Shell Structure of the Surface of SiO<sub>2</sub>/DNA(Dox) and SiO<sub>2</sub>/DNA(Dox)/Fullerene С<sub>60</sub> Composite Systems

Authors

  • V. V. Turov Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine
  • A. P. Ugnivenko Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine
  • V. M. Barvinchenko Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine
  • T. V. Krupska Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine
  • S. V. Chekhun Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology of National Academy of Sciences of Ukraine
  • Yu. I. Prylutskyy Taras Shevchenko National University of Kyiv

Abstract

The structure of the hydrate cover of SiO2/DNA(Dox) and SiO2/DNA(Dox)/Full nanocomposites in the medium of non-polar organic solvent CCl4was studied using the low-temperature 1H NMR spectroscopy. For strongly associated interfacial water clusters the distributions were obtained along the radius as well as the changes in the Gibbs free energy stipulated by adsorption interaction with the surface of nanoparticles. It has been shown that the hydration properties of these composites differ from those of the solid particles of DNA or SiO2/DNA composite structure of weakly associated water clusters. It has been found that the introduction of additional portions of water into the dispersion medium (CCl4) near interfaces results in formation long-living of sub-micron clusters the submicron clusters of strongly associated water which can significantly affect the concentration ratio of strongly and weakly associated water.

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Turov, V. V.; Ugnivenko, A. P.; Barvinchenko, V. M.; Krupska, T. V.; Chekhun, S. V.; Prylutskyy, Y. I. Hydration Shell Structure of the Surface of SiO<sub>2< sub> DNA(Dox) and SiO<sub>2< sub> DNA(Dox) Fullerene С<sub>60< Sub> Composite Systems. Him. Fiz. Tehnol. Poverhni 2011, 2, 190-200.

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Vol. 2 No. 2 (2011): Chemistry, Physics and Technology of Surface / Himia, Fizika ta Tehnologia Poverhni

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