Instability of Expanding Bacterial Droplets

Sokolov, Andrey; Dominguez Rubio, Leonardo; Brady, John F.; Aranson, Igor S.

doi:10.1038/s41467-018-03758-z

Title: Instability of Expanding Bacterial Droplets

Abstract

Suspensions of motile bacteria or synthetic microswimmers, termed active matter, manifest a remarkable propensity for self-organization, and formation of large-scale coherent structures. Most active matter research deals with almost homogeneous in space systems and little is known about the dynamics of strongly heterogeneous active matter. Here in this paper we report on experimental and theoretical studies on the expansion of highly concentrated bacterial droplets into an ambient bacteria-free fluid. The droplet is formed beneath a rapidly rotating solid macroscopic particle inserted in the suspension. We observe vigorous instability of the droplet reminiscent of a violent explosion. The phenomenon is explained in terms of continuum first-principle theory based on the swim pressure concept. Our findings provide insights into the dynamics of active matter with strong density gradients and significantly expand the scope of experimental and analytic tools for control and manipulation of active systems.

Authors:

Sokolov, Andrey ^[1]; Dominguez Rubio, Leonardo ^[2]; Brady, John F. ^[3]; Aranson, Igor S. ^[4]

Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
Pennsylvania State Univ., University Park, PA (United States). Dept. of Biomedical Engineering
California Inst. of Technology (CalTech), Pasadena, CA (United States). Division of Chemistry and Chemical Engineering
Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Pennsylvania State Univ., University Park, PA (United States). Dept. of Biomedical Engineering

Publication Date:: 2018-04-03

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division

OSTI Identifier:: 1459889

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Nature Communications

Additional Journal Information:: Journal Volume: 9; Journal ID: ISSN 2041-1723

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: 59 BASIC BIOLOGICAL SCIENCES

Citation Formats


                    Sokolov, Andrey, Dominguez Rubio, Leonardo, Brady, John F., and Aranson, Igor S. Instability of Expanding Bacterial Droplets.  United States: N. p., 2018. 
Web.  doi:10.1038/s41467-018-03758-z.

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                    Sokolov, Andrey, Dominguez Rubio, Leonardo, Brady, John F., & Aranson, Igor S. Instability of Expanding Bacterial Droplets.  United States.  https://doi.org/10.1038/s41467-018-03758-z

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                    Sokolov, Andrey, Dominguez Rubio, Leonardo, Brady, John F., and Aranson, Igor S. Tue .  
"Instability of Expanding Bacterial Droplets".  United States.  https://doi.org/10.1038/s41467-018-03758-z.  https://www.osti.gov/servlets/purl/1459889.

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@article{osti_1459889,

  title        = {Instability of Expanding Bacterial Droplets},

  author       = {Sokolov, Andrey and Dominguez Rubio, Leonardo and Brady, John F. and Aranson, Igor S.},

  abstractNote = {Suspensions of motile bacteria or synthetic microswimmers, termed active matter, manifest a remarkable propensity for self-organization, and formation of large-scale coherent structures. Most active matter research deals with almost homogeneous in space systems and little is known about the dynamics of strongly heterogeneous active matter. Here in this paper we report on experimental and theoretical studies on the expansion of highly concentrated bacterial droplets into an ambient bacteria-free fluid. The droplet is formed beneath a rapidly rotating solid macroscopic particle inserted in the suspension. We observe vigorous instability of the droplet reminiscent of a violent explosion. The phenomenon is explained in terms of continuum first-principle theory based on the swim pressure concept. Our findings provide insights into the dynamics of active matter with strong density gradients and significantly expand the scope of experimental and analytic tools for control and manipulation of active systems.},

  doi          = {10.1038/s41467-018-03758-z},

  journal      = {Nature Communications},

  number       = ,

  volume       = 9,

  place        = {United States},

  year         = {2018},

  month        = {4}

}

Copy to clipboard

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Works referencing / citing this record:

The propagation of active-passive interfaces in bacterial swarms
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Similar Records

Title: Instability of Expanding Bacterial Droplets

Abstract

Citation Formats

Model for dynamical coherence in thin films of self-propelled microorganisms journal, April 2007

The force on a boundary in active matter journal, November 2015

Swim stress, motion, and deformation of active matter: effect of an external field journal, January 2014

Self-Concentration and Large-Scale Coherence in Bacterial Dynamics journal, August 2004

T HE R ICHTMYER -M ESHKOV I NSTABILITY journal, January 2002

Catalytic Nanomotors: Remote-Controlled Autonomous Movement of Striped Metallic Nanorods journal, January 2005

Wall effects on a rotating sphere journal, May 2010

Collective motion journal, August 2012

Large-scale vortex lattice emerging from collectively moving microtubules journal, March 2012

Real-Time Imaging of Fluorescent Flagellar Filaments journal, May 2000

Living Crystals of Light-Activated Colloidal Surfers journal, January 2013

Nonlinear Field Equations for Aligning Self-Propelled Rods journal, December 2012

Emergence of macroscopic directed motion in populations of motile colloids journal, November 2013

Spontaneous motion in hierarchically assembled active matter journal, November 2012

Swim Pressure: Stress Generation in Active Matter journal, July 2014

Meso-scale turbulence in living fluids journal, August 2012

Acoustic trapping of active matter journal, March 2016

Mesoscopic theory for fluctuating active nematics journal, August 2013

Diffusion and Spatial Correlations in Suspensions of Swimming Particles journal, June 2008

The Mechanics and Statistics of Active Matter journal, August 2010

Polar patterns of driven filaments journal, September 2010

Orientational Order and Instabilities in Suspensions of Self-Locomoting Rods journal, July 2007

Control of active liquid crystals with a magnetic field journal, May 2016

Swim pressure on walls with curves and corners journal, September 2015

Collective cell guidance by cooperative intercellular forces journal, May 2011

Large-Scale Chaos and Fluctuations in Active Nematics journal, July 2014

Physical Properties of Collective Motion in Suspensions of Bacteria journal, December 2012

Hydrodynamic Fluctuations and Instabilities in Ordered Suspensions of Self-Propelled Particles journal, July 2002

Concentration Dependence of the Collective Dynamics of Swimming Bacteria journal, April 2007

Dynamic Clustering in Active Colloidal Suspensions with Chemical Signaling journal, June 2012

Motility-Induced Phase Separation journal, March 2015

Rapid expulsion of microswimmers by a vortical flow journal, March 2016

Instabilities and Pattern Formation in Active Particle Suspensions: Kinetic Theory and Continuum Simulations journal, April 2008

Acoustic trapping of active matter text, January 2016

Meso-scale turbulence in living fluids text, January 2012

The Mechanics and Statistics of Active Matter text, January 2010

Collective motion text, January 2010

Spontaneous motion in hierarchically assembled active matter text, January 2013

Hydrodynamic fluctuations and instabilities in ordered suspensions of self-propelled particles text, January 2001

The propagation of active-passive interfaces in bacterial swarms journal, December 2018

Oscillatory surface rheotaxis of swimming E. coli bacteria journal, July 2019

Rotating oil droplets driven by motile bacteria at interfaces journal, January 2019

Microscopic origins of the swim pressure and the anomalous surface tension of active matter journal, January 2020

Collective dynamics of two-dimensional swimming bacteria: Experiments and models journal, September 2018

Model for dynamical coherence in thin films of self-propelled microorganisms
journal, April 2007

The force on a boundary in active matter
journal, November 2015

Swim stress, motion, and deformation of active matter: effect of an external field
journal, January 2014

Self-Concentration and Large-Scale Coherence in Bacterial Dynamics
journal, August 2004

T HE R ICHTMYER -M ESHKOV I NSTABILITY
journal, January 2002

Catalytic Nanomotors: Remote-Controlled Autonomous Movement of Striped Metallic Nanorods
journal, January 2005

Wall effects on a rotating sphere
journal, May 2010

Collective motion
journal, August 2012

Large-scale vortex lattice emerging from collectively moving microtubules
journal, March 2012

Real-Time Imaging of Fluorescent Flagellar Filaments
journal, May 2000

Living Crystals of Light-Activated Colloidal Surfers
journal, January 2013

Nonlinear Field Equations for Aligning Self-Propelled Rods
journal, December 2012

Emergence of macroscopic directed motion in populations of motile colloids
journal, November 2013

Spontaneous motion in hierarchically assembled active matter
journal, November 2012

Swim Pressure: Stress Generation in Active Matter
journal, July 2014

Meso-scale turbulence in living fluids
journal, August 2012

Acoustic trapping of active matter
journal, March 2016

Mesoscopic theory for fluctuating active nematics
journal, August 2013

Diffusion and Spatial Correlations in Suspensions of Swimming Particles
journal, June 2008

The Mechanics and Statistics of Active Matter
journal, August 2010

Polar patterns of driven filaments
journal, September 2010

Orientational Order and Instabilities in Suspensions of Self-Locomoting Rods
journal, July 2007

Control of active liquid crystals with a magnetic field
journal, May 2016

Swim pressure on walls with curves and corners
journal, September 2015

Collective cell guidance by cooperative intercellular forces
journal, May 2011

Large-Scale Chaos and Fluctuations in Active Nematics
journal, July 2014

Physical Properties of Collective Motion in Suspensions of Bacteria
journal, December 2012

Hydrodynamic Fluctuations and Instabilities in Ordered Suspensions of Self-Propelled Particles
journal, July 2002

Concentration Dependence of the Collective Dynamics of Swimming Bacteria
journal, April 2007

Dynamic Clustering in Active Colloidal Suspensions with Chemical Signaling
journal, June 2012

Motility-Induced Phase Separation
journal, March 2015

Rapid expulsion of microswimmers by a vortical flow
journal, March 2016

Instabilities and Pattern Formation in Active Particle Suspensions: Kinetic Theory and Continuum Simulations
journal, April 2008

Acoustic trapping of active matter
text, January 2016

Meso-scale turbulence in living fluids
text, January 2012

The Mechanics and Statistics of Active Matter
text, January 2010

Collective motion
text, January 2010

Spontaneous motion in hierarchically assembled active matter
text, January 2013

Hydrodynamic fluctuations and instabilities in ordered suspensions of self-propelled particles
text, January 2001

The propagation of active-passive interfaces in bacterial swarms
journal, December 2018

Oscillatory surface rheotaxis of swimming E. coli bacteria
journal, July 2019

Rotating oil droplets driven by motile bacteria at interfaces
journal, January 2019

Microscopic origins of the swim pressure and the anomalous surface tension of active matter
journal, January 2020

Collective dynamics of two-dimensional swimming bacteria: Experiments and models
journal, September 2018