Individual behavior and pairwise interactions between microswimmers in anisotropic liquid

doi:10.1103/PhysRevE.91.013009

Title: Individual behavior and pairwise interactions between microswimmers in anisotropic liquid

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Authors:: Sokolov, Andrey; Zhou, Shuang; Lavrentovich, Oleg D.; Aranson, Igor S.

Publication Date:: Thu Jan 15 00:00:00 EST 2015

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

OSTI Identifier:: 1181443

Resource Type:: Journal Article: Publisher's Accepted Manuscript

Journal Name:: Physical Review E

Additional Journal Information:: Journal Volume: 91; Journal Issue: 1; Journal ID: ISSN 1539-3755

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

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                    Sokolov, Andrey, Zhou, Shuang, Lavrentovich, Oleg D., and Aranson, Igor S.. Individual behavior and pairwise interactions between microswimmers in anisotropic liquid.  United States: N. p., 2015. 
        Web.  doi:10.1103/PhysRevE.91.013009.

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                    Sokolov, Andrey, Zhou, Shuang, Lavrentovich, Oleg D., & Aranson, Igor S.. Individual behavior and pairwise interactions between microswimmers in anisotropic liquid.  United States.  doi:10.1103/PhysRevE.91.013009.

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                    Sokolov, Andrey, Zhou, Shuang, Lavrentovich, Oleg D., and Aranson, Igor S.. Thu .  
        "Individual behavior and pairwise interactions between microswimmers in anisotropic liquid".  United States.  
        doi:10.1103/PhysRevE.91.013009.

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@article{osti_1181443,

  title        = {Individual behavior and pairwise interactions between microswimmers in anisotropic liquid},

  author       = {Sokolov, Andrey and Zhou, Shuang and Lavrentovich, Oleg D. and Aranson, Igor S.},

  abstractNote = {},

  doi          = {10.1103/PhysRevE.91.013009},

  journal      = {Physical Review E},

  number       = 1,

  volume       = 91,

  place        = {United States},

  year         = {Thu Jan 15 00:00:00 EST 2015},

  month        = {Thu Jan 15 00:00:00 EST 2015}

}

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Individual behavior and pairwise interactions between microswimmers in anisotropic liquid

Sokolov, Andrey ; Zhou, Shuang ; Lavrentovich, Oleg D. ; ... - Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

A motile bacterium swims by generating flow in its surrounding liquid. Anisotropy of the suspending liquid significantly modifies the swimming dynamics and corresponding flow signatures of an individual bacterium and impacts collective behavior. We study the interactions between swimming bacteria in an anisotropic environment exemplified by lyotropic chromonic liquid crystal. Our analysis reveals a significant localization of the bacteria-induced flow along a line coaxial with the bacterial body, which is due to strong viscosity anisotropy of the liquid crystal. Despite the fact that the average viscosity of the liquid crystal is two to three orders of magnitude higher than themore »« less
DOI: 10.1103/PhysRevE.91.013009
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The individual and collective effects of exact exchange and dispersion interactions on the ab initio structure of liquid water

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In this work, we report the results of a series of density functional theory (DFT) based ab initio molecular dynamics (AIMD) simulations of ambient liquid water using a hierarchy of exchange-correlation (XC) functionals to investigate the individual and collective effects of exact exchange (Exx), via the PBE0 hybrid functional, non-local van der Waals/dispersion (vdW) interactions, via a fully self-consistent density-dependent dispersion correction, and an approximate treatment of nuclear quantum effects, via a 30 K increase in the simulation temperature, on the microscopic structure of liquid water. Based on these AIMD simulations, we found that the collective inclusion of Exx andmore »« less
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