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dc.contributor.authorRiley, Emily E
dc.contributor.authorDas, Debasish
dc.contributor.authorLauga, Eric
dc.date.accessioned2018-11-20T00:31:22Z
dc.date.available2018-11-20T00:31:22Z
dc.date.issued2018-07-16
dc.identifier.issn2045-2322
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/285472
dc.description.abstractPeritrichously-flagellated bacteria, such as Escherichia coli, self-propel in fluids by using specialised motors to rotate multiple helical filaments. The rotation of each motor is transmitted to a short flexible segment called the hook which in turn transmits it to a flagellar filament, enabling swimming of the whole cell. Since multiple motors are spatially distributed on the body of the organism, one would expect the propulsive forces from the filaments to push against each other leading to negligible swimming. We use a combination of computations and theory to show that the swimming of peritrichous bacteria is enabled by an elastohydrodynamic bending instability occurring for hooks more flexible than a critical threshold. Using past measurements of hook bending stiffness, we demonstrate how real bacteria are safely on the side of the instability that promotes systematic swimming.
dc.format.mediumElectronic
dc.languageeng
dc.publisherSpringer Science and Business Media LLC
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectFlagella
dc.subjectBacteria
dc.subjectMovement
dc.subjectElasticity
dc.subjectTorque
dc.subjectRotation
dc.subjectModels, Biological
dc.subjectBacterial Physiological Phenomena
dc.subjectHydrodynamics
dc.titleSwimming of peritrichous bacteria is enabled by an elastohydrodynamic instability.
dc.typeArticle
prism.issueIdentifier1
prism.publicationDate2018
prism.publicationNameSci Rep
prism.startingPage10728
prism.volume8
dc.identifier.doi10.17863/CAM.32830
dcterms.dateAccepted2018-06-20
rioxxterms.versionofrecord10.1038/s41598-018-28319-8
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-07-16
dc.contributor.orcidRiley, Emily E [0000-0001-6691-3011]
dc.contributor.orcidDas, Debasish [0000-0003-2365-4720]
dc.contributor.orcidLauga, Eric [0000-0002-8916-2545]
dc.identifier.eissn2045-2322
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEuropean Research Council (682754)
cam.issuedOnline2018-07-16


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International