Block copolymer based molecular motor

Oleg E. Perelstein, Viktor A. Ivanov, Yury Velichko, Pavel G. Khalatur, Alexei R. Khokhlov, Igor I. Potemkin*

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

We propose a model of molecular motor based on diblock copolymer strongly adsorbed on a patterned surface. One of the blocks of the copolymer is modeled as field responsive. It is shown that time-periodic collapse-readsorption of the responsive block leads to the directed motion (reptation) of the molecule along the "track" provided by the surface pattern. Both the Langevin dynamics (LD) technique of computer simulation for the bead-spring model and numerical solution of the Newton equations of a simplified (toy) model of the copolymer are used. The physical reason of directionality of the motion is shown to be an anisotropy of the friction of the molecule with the surface.

Original languageEnglish (US)
Pages (from-to)977-980
Number of pages4
JournalMacromolecular Rapid Communications
Volume28
Issue number8
DOIs
StatePublished - Apr 16 2007

Keywords

  • Adsorption
  • Block copolymers
  • Computer modeling
  • Molecular motor
  • Surfaces

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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  • Cite this

    Perelstein, O. E., Ivanov, V. A., Velichko, Y., Khalatur, P. G., Khokhlov, A. R., & Potemkin, I. I. (2007). Block copolymer based molecular motor. Macromolecular Rapid Communications, 28(8), 977-980. https://doi.org/10.1002/marc.200700009