Publication:
Emergence of active nematics in chaining bacterial biofilms

dc.contributor.coauthorVetter, Roman
dc.contributor.departmentKUYTAM (Koç University Surface Science and Technology Center)
dc.contributor.departmentDepartment of Physics
dc.contributor.departmentGraduate School of Sciences and Engineering
dc.contributor.kuauthorKocabaş, Aşkın
dc.contributor.kuauthorYaman, Yusuf İlker
dc.contributor.kuauthorDemir, Esin
dc.contributor.schoolcollegeinstituteGRADUATE SCHOOL OF SCIENCES AND ENGINEERING
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.schoolcollegeinstituteResearch Center
dc.contributor.yokid227753
dc.contributor.yokidN/A
dc.contributor.yokidN/A
dc.date.accessioned2024-11-09T13:14:53Z
dc.date.issued2019
dc.description.abstractGrowing tissue and bacterial colonies are active matter systems where cell divisions and cellular motion generate active stress. Although they operate in the non-equilibrium regime, these biological systems can form large-scale ordered structures. How mechanical instabilities drive the dynamics of active matter systems and form ordered structures are not well understood. Here, we use chaining Bacillus subtilis, also known as a biofilm, to study the relation between mechanical instabilities and nematic ordering. We find that bacterial biofilms have intrinsic length scales above which a series of mechanical instabilities occur. Localized stress and friction drive buckling and edge instabilities which further create nematically aligned structures and topological defects. We also observe that topological defects control stress distribution and initiate the formation of sporulation sites by creating three-dimensional structures. In this study we propose an alternative active matter platform to study the essential roles of mechanics in growing biological tissue.
dc.description.fulltextYES
dc.description.indexedbyWoS
dc.description.indexedbyScopus
dc.description.openaccessYES
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.sponsorshipEMBO Installation Grant
dc.description.sponsorshipBAGEP Young Investigator Award
dc.description.versionPublisher version
dc.description.volume10
dc.formatpdf
dc.identifier.doi10.1038/s41467-019-10311-z
dc.identifier.embargoNO
dc.identifier.filenameinventorynoIR01702
dc.identifier.issn2041-1723
dc.identifier.linkhttps://doi.org/10.1038/s41467-019-10311-z
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-85066863312
dc.identifier.urihttps://hdl.handle.net/20.500.14288/2991
dc.identifier.wos468774300010
dc.keywordsTopological defects
dc.keywordsBacillus-subtilis
dc.keywordsLiquid-crystals
dc.keywordsInstability
dc.keywordsDynamics
dc.keywordsTissue
dc.languageEnglish
dc.publisherNature Publishing Group (NPG)
dc.relation.grantnoIG 3275
dc.relation.urihttp://cdm21054.contentdm.oclc.org/cdm/ref/collection/IR/id/8350
dc.sourceNature Communications
dc.subjectScience and technology
dc.titleEmergence of active nematics in chaining bacterial biofilms
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.authorid0000-0002-6930-1202
local.contributor.authoridN/A
local.contributor.authoridN/A
local.contributor.kuauthorKocabaş, Aşkın
local.contributor.kuauthorYaman, Yusuf İlker
local.contributor.kuauthorDemir, Esin
local.publication.orgunit1GRADUATE SCHOOL OF SCIENCES AND ENGINEERING
local.publication.orgunit1College of Sciences
local.publication.orgunit1Research Center
local.publication.orgunit2KUYTAM (Koç University Surface Science and Technology Center)
local.publication.orgunit2Department of Physics
local.publication.orgunit2Graduate School of Sciences and Engineering
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