[{"oa_version":"Published Version","date_created":"2023-06-02T12:30:40Z","corr_author":"1","type":"research_data","abstract":[{"lang":"eng","text":"The emergence of large-scale order in self-organized systems relies on local interactions between individual components. During bacterial cell division, FtsZ -- a prokaryotic homologue of the eukaryotic protein tubulin -- polymerizes into treadmilling filaments that further organize into a cytoskeletal ring. In vitro, FtsZ filaments can form dynamic chiral assemblies. However, how the active and passive properties of individual filaments relate to these large-scale self-organized structures remains poorly understood. Here, we connect single filament properties with the mesoscopic scale by combining minimal active matter simulations and biochemical reconstitution experiments. We show that density and flexibility of active chiral filaments define their global order. At intermediate densities, curved, flexible filaments organize into chiral rings and polar bands. An effectively nematic organization dominates for high densities and for straight, mutant filaments with increased rigidity. Our predicted phase diagram captures these features quantitatively, demonstrating how the flexibility, density and chirality of active filaments affect their collective behaviour. Our findings shed light on the fundamental properties of active chiral matter and explain how treadmilling FtsZ filaments organize during bacterial cell division. "}],"has_accepted_license":"1","status":"public","citation":{"chicago":"Dunajova, Zuzana, Batirtze Prats Mateu, Philipp Radler, Keesiang Lim, Dörte Brandis, Philipp Velicky, Johann G Danzl, et al. “Chiral and Nematic Phases of Flexible Active Filaments.” Institute of Science and Technology Austria, 2023. <a href=\"https://doi.org/10.15479/AT:ISTA:13116\">https://doi.org/10.15479/AT:ISTA:13116</a>.","apa":"Dunajova, Z., Prats Mateu, B., Radler, P., Lim, K., Brandis, D., Velicky, P., … Loose, M. (2023). Chiral and nematic phases of flexible active filaments. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT:ISTA:13116\">https://doi.org/10.15479/AT:ISTA:13116</a>","ieee":"Z. Dunajova <i>et al.</i>, “Chiral and nematic phases of flexible active filaments.” Institute of Science and Technology Austria, 2023.","ista":"Dunajova Z, Prats Mateu B, Radler P, Lim K, Brandis D, Velicky P, Danzl JG, Wong RW, Elgeti J, Hannezo EB, Loose M. 2023. Chiral and nematic phases of flexible active filaments, Institute of Science and Technology Austria, <a href=\"https://doi.org/10.15479/AT:ISTA:13116\">10.15479/AT:ISTA:13116</a>.","ama":"Dunajova Z, Prats Mateu B, Radler P, et al. Chiral and nematic phases of flexible active filaments. 2023. doi:<a href=\"https://doi.org/10.15479/AT:ISTA:13116\">10.15479/AT:ISTA:13116</a>","mla":"Dunajova, Zuzana, et al. <i>Chiral and Nematic Phases of Flexible Active Filaments</i>. Institute of Science and Technology Austria, 2023, doi:<a href=\"https://doi.org/10.15479/AT:ISTA:13116\">10.15479/AT:ISTA:13116</a>.","short":"Z. Dunajova, B. Prats Mateu, P. Radler, K. Lim, D. Brandis, P. Velicky, J.G. Danzl, R.W. Wong, J. Elgeti, E.B. Hannezo, M. 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work was supported by the European Research Council through grant ERC 2015-StG-679239 and by the Austrian Science Fund (FWF) StandAlone P34607 to M.L., B. P.M.  was also supported by the Kanazawa University WPI- NanoLSI Bio-SPM collaborative research program. Z.D. has received funding from Doctoral Programme of the Austrian Academy of Sciences (OeAW): Grant agreement 26360. We thank Jan Brugues (MPI CBG, Dresden, Germany), Andela Saric (ISTA, Klosterneuburg, Austria), Daniel Pearce (Uni Geneva, Switzerland) for valuable scientific input and comments on the manuscript. We are also thankful for the support by the Scientific Service Units (SSU) of IST Austria through resources provided by the Imaging and Optics Facility (IOF) and the Lab Support Facility (LSF). ","doi":"10.15479/AT:ISTA:13116","publisher":"Institute of Science and Technology Austria","article_processing_charge":"No","tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa":1,"title":"Chiral and nematic phases of flexible active filaments","day":"26","department":[{"_id":"MaLo"},{"_id":"EdHa"},{"_id":"JoDa"}]},{"isi":1,"acknowledgement":"This work was supported by the European Research Council through grant ERC 2015-StG-679239 and by the Austrian Science Fund (FWF) StandAlone P34607 to M.L., B. P.M. was also supported by the Kanazawa University WPI- NanoLSI Bio-SPM collaborative research program. Z.D. has received funding from Doctoral Programme of the Austrian Academy of Sciences (OeAW): Grant agreement 26360. We thank Jan Brugues (MPI CBG, Dresden, Germany), Andela Saric (ISTA, Klosterneuburg, Austria), Daniel Pearce (Uni Geneva, Switzerland) for valuable scientific input and comments on the manuscript. We are also thankful for the support by the Scientific Service Units (SSU) of IST Austria through resources provided by the Imaging and Optics Facility (IOF) and the Lab Support Facility (LSF).","doi":"10.1038/s41567-023-02218-w","file":[{"content_type":"application/pdf","date_created":"2024-01-30T14:28:30Z","access_level":"open_access","creator":"dernst","relation":"main_file","file_name":"2023_NaturePhysics_Dunajova.pdf","file_id":"14916","date_updated":"2024-01-30T14:28:30Z","success":1,"checksum":"bc7673ca07d37309013a86166577b2f7","file_size":22471673}],"publisher":"Springer Nature","_id":"13314","date_published":"2023-12-01T00:00:00Z","quality_controlled":"1","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","oa":1,"title":"Chiral and nematic phases of flexible active filaments","day":"01","department":[{"_id":"JoDa"},{"_id":"EdHa"},{"_id":"MaLo"},{"_id":"GradSch"}],"article_processing_charge":"Yes (in subscription journal)","publication_identifier":{"eissn":["1745-2481"],"issn":["1745-2473"]},"tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"intvolume":"        19","date_updated":"2026-06-10T09:41:11Z","ddc":["530"],"project":[{"name":"Self-Organization of the Bacterial Cell","_id":"2595697A-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"679239"},{"grant_number":"P34607","name":"In vitro reconstitution of bacterial cell division","_id":"fc38323b-9c52-11eb-aca3-ff8afb4a011d"},{"_id":"34d75525-11ca-11ed-8bc3-89b6307fee9d","name":"Motile active matter models of migrating cells and chiral filaments","grant_number":"26360"}],"date_created":"2023-07-27T14:44:45Z","oa_version":"Published Version","publication":"Nature Physics","scopus_import":"1","type":"journal_article","corr_author":"1","abstract":[{"lang":"eng","text":"The emergence of large-scale order in self-organized systems relies on local interactions between individual components. During bacterial cell division, FtsZ—a prokaryotic homologue of the eukaryotic protein tubulin—polymerizes into treadmilling filaments that further organize into a cytoskeletal ring. In vitro, FtsZ filaments can form dynamic chiral assemblies. However, how the active and passive properties of individual filaments relate to these large-scale self-organized structures remains poorly understood. Here we connect single-filament properties with the mesoscopic scale by combining minimal active matter simulations and biochemical reconstitution experiments. We show that the density and flexibility of active chiral filaments define their global order. At intermediate densities, curved, flexible filaments organize into chiral rings and polar bands. An effectively nematic organization dominates for high densities and for straight, mutant filaments with increased rigidity. Our predicted phase diagram quantitatively captures these features, demonstrating how the flexibility, density and chirality of the active filaments affect their collective behaviour. Our findings shed light on the fundamental properties of active chiral matter and explain how treadmilling FtsZ filaments organize during bacterial cell division."}],"status":"public","external_id":{"isi":["001178645300041"],"pmid":["38075437"]},"has_accepted_license":"1","ec_funded":1,"article_type":"original","citation":{"apa":"Dunajova, Z., Prats Mateu, B., Radler, P., Lim, K., Brandis, D., Velicky, P., … Loose, M. (2023). Chiral and nematic phases of flexible active filaments. <i>Nature Physics</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41567-023-02218-w\">https://doi.org/10.1038/s41567-023-02218-w</a>","ama":"Dunajova Z, Prats Mateu B, Radler P, et al. Chiral and nematic phases of flexible active filaments. <i>Nature Physics</i>. 2023;19:1916-1926. doi:<a href=\"https://doi.org/10.1038/s41567-023-02218-w\">10.1038/s41567-023-02218-w</a>","ieee":"Z. Dunajova <i>et al.</i>, “Chiral and nematic phases of flexible active filaments,” <i>Nature Physics</i>, vol. 19. Springer Nature, pp. 1916–1926, 2023.","ista":"Dunajova Z, Prats Mateu B, Radler P, Lim K, Brandis D, Velicky P, Danzl JG, Wong RW, Elgeti J, Hannezo EB, Loose M. 2023. Chiral and nematic phases of flexible active filaments. Nature Physics. 19, 1916–1926.","mla":"Dunajova, Zuzana, et al. “Chiral and Nematic Phases of Flexible Active Filaments.” <i>Nature Physics</i>, vol. 19, Springer Nature, 2023, pp. 1916–26, doi:<a href=\"https://doi.org/10.1038/s41567-023-02218-w\">10.1038/s41567-023-02218-w</a>.","short":"Z. Dunajova, B. Prats Mateu, P. Radler, K. Lim, D. Brandis, P. Velicky, J.G. Danzl, R.W. Wong, J. Elgeti, E.B. Hannezo, M. Loose, Nature Physics 19 (2023) 1916–1926.","chicago":"Dunajova, Zuzana, Batirtze Prats Mateu, Philipp Radler, Keesiang Lim, Dörte Brandis, Philipp Velicky, Johann G Danzl, et al. “Chiral and Nematic Phases of Flexible Active Filaments.” <i>Nature Physics</i>. Springer Nature, 2023. <a href=\"https://doi.org/10.1038/s41567-023-02218-w\">https://doi.org/10.1038/s41567-023-02218-w</a>."},"language":[{"iso":"eng"}],"year":"2023","publication_status":"published","file_date_updated":"2024-01-30T14:28:30Z","related_material":{"record":[{"relation":"research_data","id":"13116","status":"public"},{"relation":"dissertation_contains","status":"public","id":"21423"},{"relation":"research_data","status":"public","id":"21439"}]},"volume":19,"month":"12","acknowledged_ssus":[{"_id":"Bio"},{"_id":"LifeSc"}],"author":[{"last_name":"Dunajova","first_name":"Zuzana","id":"4B39F286-F248-11E8-B48F-1D18A9856A87","full_name":"Dunajova, Zuzana"},{"full_name":"Prats Mateu, Batirtze","id":"299FE892-F248-11E8-B48F-1D18A9856A87","last_name":"Prats Mateu","first_name":"Batirtze"},{"id":"40136C2A-F248-11E8-B48F-1D18A9856A87","full_name":"Radler, Philipp","first_name":"Philipp","orcid":"0000-0001-9198-2182 ","last_name":"Radler"},{"full_name":"Lim, Keesiang","first_name":"Keesiang","last_name":"Lim"},{"id":"21d64d35-f128-11eb-9611-b8bcca7a12fd","full_name":"Brandis, Dörte","first_name":"Dörte","last_name":"Brandis"},{"id":"39BDC62C-F248-11E8-B48F-1D18A9856A87","full_name":"Velicky, Philipp","last_name":"Velicky","first_name":"Philipp","orcid":"0000-0002-2340-7431"},{"full_name":"Danzl, Johann G","id":"42EFD3B6-F248-11E8-B48F-1D18A9856A87","last_name":"Danzl","orcid":"0000-0001-8559-3973","first_name":"Johann G"},{"full_name":"Wong, Richard W.","first_name":"Richard W.","last_name":"Wong"},{"full_name":"Elgeti, Jens","first_name":"Jens","last_name":"Elgeti"},{"full_name":"Hannezo, Edouard B","id":"3A9DB764-F248-11E8-B48F-1D18A9856A87","last_name":"Hannezo","orcid":"0000-0001-6005-1561","first_name":"Edouard B"},{"last_name":"Loose","first_name":"Martin","orcid":"0000-0001-7309-9724","id":"462D4284-F248-11E8-B48F-1D18A9856A87","full_name":"Loose, Martin"}],"pmid":1,"page":"1916-1926"},{"publisher":"American Chemical Society","doi":"10.1021/acs.nanolett.0c00205","file":[{"file_size":7108014,"checksum":"fe46146a9c4c620592a1932a8599069e","date_updated":"2020-07-14T12:48:01Z","file_id":"7667","file_name":"2020_NanoLetters_Felhofer.pdf","relation":"main_file","creator":"dernst","access_level":"open_access","date_created":"2020-04-20T10:43:36Z","content_type":"application/pdf"}],"isi":1,"quality_controlled":"1","_id":"7663","date_published":"2020-04-08T00:00:00Z","title":"Wood deformation leads to rearrangement of molecules at the nanoscale","oa":1,"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","department":[{"_id":"MaLo"}],"day":"08","tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"publication_identifier":{"eissn":["1530-6992"]},"article_processing_charge":"No","ddc":["530"],"date_updated":"2026-04-02T14:26:44Z","intvolume":"        20","has_accepted_license":"1","status":"public","external_id":{"pmid":["32196350"],"isi":["000526413400055"]},"abstract":[{"lang":"eng","text":"Wood, as the most abundant carbon dioxide storing bioresource, is currently driven beyond its traditional use through creative innovations and nanotechnology. For many properties the micro- and nanostructure plays a crucial role and one key challenge is control and detection of chemical and physical processes in the confined microstructure and nanopores of the wooden cell wall. In this study, correlative Raman and atomic force microscopy show high potential for tracking in situ molecular rearrangement of wood polymers during compression. More water molecules (interpreted as wider cellulose microfibril distances) and disentangling of hemicellulose chains are detected in the opened cell wall regions, whereas an increase of lignin is revealed in the compressed areas. These results support a new more “loose” cell wall model based on flexible lignin nanodomains and advance our knowledge of the molecular reorganization during deformation of wood for optimized processing and utilization."}],"type":"journal_article","scopus_import":"1","date_created":"2020-04-19T22:00:54Z","publication":"Nano Letters","oa_version":"Published Version","language":[{"iso":"eng"}],"article_type":"original","citation":{"mla":"Felhofer, Martin, et al. “Wood Deformation Leads to Rearrangement of Molecules at the Nanoscale.” <i>Nano Letters</i>, vol. 20, no. 4, American Chemical Society, 2020, pp. 2647–53, doi:<a href=\"https://doi.org/10.1021/acs.nanolett.0c00205\">10.1021/acs.nanolett.0c00205</a>.","short":"M. Felhofer, P. Bock, A. Singh, B. Prats Mateu, R. Zirbs, N. Gierlinger, Nano Letters 20 (2020) 2647–2653.","apa":"Felhofer, M., Bock, P., Singh, A., Prats Mateu, B., Zirbs, R., &#38; Gierlinger, N. (2020). Wood deformation leads to rearrangement of molecules at the nanoscale. <i>Nano Letters</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acs.nanolett.0c00205\">https://doi.org/10.1021/acs.nanolett.0c00205</a>","ama":"Felhofer M, Bock P, Singh A, Prats Mateu B, Zirbs R, Gierlinger N. Wood deformation leads to rearrangement of molecules at the nanoscale. <i>Nano Letters</i>. 2020;20(4):2647-2653. doi:<a href=\"https://doi.org/10.1021/acs.nanolett.0c00205\">10.1021/acs.nanolett.0c00205</a>","ista":"Felhofer M, Bock P, Singh A, Prats Mateu B, Zirbs R, Gierlinger N. 2020. Wood deformation leads to rearrangement of molecules at the nanoscale. Nano Letters. 20(4), 2647–2653.","ieee":"M. Felhofer, P. Bock, A. Singh, B. Prats Mateu, R. Zirbs, and N. Gierlinger, “Wood deformation leads to rearrangement of molecules at the nanoscale,” <i>Nano Letters</i>, vol. 20, no. 4. American Chemical Society, pp. 2647–2653, 2020.","chicago":"Felhofer, Martin, Peter Bock, Adya Singh, Batirtze Prats Mateu, Ronald Zirbs, and Notburga Gierlinger. “Wood Deformation Leads to Rearrangement of Molecules at the Nanoscale.” <i>Nano Letters</i>. American Chemical Society, 2020. <a href=\"https://doi.org/10.1021/acs.nanolett.0c00205\">https://doi.org/10.1021/acs.nanolett.0c00205</a>."},"file_date_updated":"2020-07-14T12:48:01Z","publication_status":"published","year":"2020","month":"04","volume":20,"issue":"4","author":[{"last_name":"Felhofer","first_name":"Martin","full_name":"Felhofer, Martin"},{"first_name":"Peter","last_name":"Bock","full_name":"Bock, Peter"},{"last_name":"Singh","first_name":"Adya","full_name":"Singh, Adya"},{"full_name":"Prats Mateu, Batirtze","id":"299FE892-F248-11E8-B48F-1D18A9856A87","first_name":"Batirtze","last_name":"Prats Mateu"},{"full_name":"Zirbs, Ronald","first_name":"Ronald","last_name":"Zirbs"},{"full_name":"Gierlinger, Notburga","first_name":"Notburga","last_name":"Gierlinger"}],"page":"2647-2653","pmid":1}]