Block copolymer based molecular motor

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

doi:10.1002/marc.200700009

Block copolymer based molecular motor

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

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

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 language	English (US)
Pages (from-to)	977-980
Number of pages	4
Journal	Macromolecular Rapid Communications
Volume	28
Issue number	8
DOIs	https://doi.org/10.1002/marc.200700009
State	Published - Apr 16 2007

Keywords

Adsorption
Block copolymers
Computer modeling
Molecular motor
Surfaces

ASJC Scopus subject areas

Materials Chemistry
Polymers and Plastics
Organic Chemistry

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10.1002/marc.200700009

Cite this

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title = "Block copolymer based molecular motor",

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.",

keywords = "Adsorption, Block copolymers, Computer modeling, Molecular motor, Surfaces",

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T1 - Block copolymer based molecular motor

AU - Perelstein, Oleg E.

AU - Ivanov, Viktor A.

AU - Velichko, Yury S.

AU - Khalatur, Pavel G.

AU - Khokhlov, Alexei R.

AU - Potemkin, Igor I.

PY - 2007/4/16

Y1 - 2007/4/16

N2 - 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.

AB - 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.

KW - Adsorption

KW - Block copolymers

KW - Computer modeling

KW - Molecular motor

KW - Surfaces

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Block copolymer based molecular motor

Abstract

Keywords

ASJC Scopus subject areas

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