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Nanotechnologies in Russia

, 6:569 | Cite as

Controlling the self-assemblage of modified colloid particle ensembles in solution microdroplets

  • P. V. Lebedev-Stepanov
  • S. P. Gromov
  • S. P. Molchanov
  • N. A. Chernyshov
  • I. S. Batalov
  • S. K. Sazonov
  • N. A. Lobova
  • N. N. Shevchenko
  • A. Yu. Men’shikova
  • M. V. Alfimov
Articles

Abstract

Sorbtion isoterms and binding constants of styryl dyes (SDs) of pyridine line with active centers on the surface of polystyrene colloid particles in aqueous solutions were investigated depending on their dye charge: dication of N-ammoniopropyl SD derivative, cation of N-ethyl SD derivative, and neutral N-sulfopropyl SD derivative; a physical model of the sorbtion was developed. Self-assemblage of the particle ensembles, the surface of which is modified by SDs (namely, the dependence that the solid-phase morphology has on the dye concentration), was studied. It was shown that a solid phase is formed in the presence of sorbed dye more uniformly coating the substrate, but with a less expressed long-range order of the particle location. The dependence that particle ordering has on the distance from the drop center, which is expressed in the presence of the radial gradient of the optical properties of the microconstruction obtained, was found.

Keywords

Atomic Force Microscope Active Center Dynamic Light Scattering Colloid Solution Styryl 
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Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  • P. V. Lebedev-Stepanov
    • 1
  • S. P. Gromov
    • 1
  • S. P. Molchanov
    • 1
  • N. A. Chernyshov
    • 1
  • I. S. Batalov
    • 1
  • S. K. Sazonov
    • 1
  • N. A. Lobova
    • 1
  • N. N. Shevchenko
    • 2
  • A. Yu. Men’shikova
    • 2
  • M. V. Alfimov
    • 1
  1. 1.Photochemistry CenterRussian Academy of SciencesMoscowRussia
  2. 2.Institute of Macromolecular CompoundsRussian Academy of SciencesSt. PetersburgRussia

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