{"id":2192,"date":"2022-12-16T12:47:43","date_gmt":"2022-12-16T11:47:43","guid":{"rendered":"https:\/\/www.uni.lu\/fstm-fr\/events\/physics-seminar-from-single-cells-to-filaments-a-dance-of-geometry-and-motion\/"},"modified":"2022-12-16T12:47:43","modified_gmt":"2022-12-16T11:47:43","slug":"physics-seminar-from-single-cells-to-filaments-a-dance-of-geometry-and-motion","status":"publish","type":"events","link":"https:\/\/www.uni.lu\/fstm-fr\/events\/physics-seminar-from-single-cells-to-filaments-a-dance-of-geometry-and-motion\/","title":{"rendered":"Physics Seminar: From single cells to filaments: a dance of geometry and motion"},"content":{"rendered":"

From single cells to filaments: a dance of geometry and motion<\/strong><\/p>

In recent years, biological motile cells like bacteria and microalgae have attracted considerable interest<\/p>

not only among biologists but also in the physics community and related fields. Understanding their<\/p>

motion has immense biological and ecological implications. The possibility to harness their motion to<\/p>

power microdevices is a topic of exceptional importance for modern microtechnology. When the motion<\/p>

of a microscopic organism is observed closely, it appears erratic, and yet the combination of<\/p>

nonequilibrium forces and surfaces can produce striking examples of organization in microbial systems.<\/p>

Combining experiments, analytical and numerical calculations [1,2] we study the motion of motile cells<\/p>

under controlled lab conditions and demonstrate that intricate patterns can be observed from the level<\/p>

of a single cell exploring an isolated habitat to an entire colony. We consider two model organisms. In<\/p>

the first part of this talk, we will discuss the influence of boundaries on the motion of a single<\/p>

Chlamydomonas cell. We theoretically predict a universal relation between probability fluxes and<\/p>

global geometric properties that is directly confirmed by experiments [2]. Our results represent a general<\/p>

description of the structure of such nonequilibrium fluxes down at the single cell level. This might open<\/p>

the possibility of designing devices that are able to guide the motion of such microbial cells. In the<\/p>

second part of this talk, we will discuss recent results on colonies of cyanobacteria, their pattern<\/p>

formation and order-disorder transition.<\/p>

[1] J. Cammann, et al., Proc. Natl. Acad. Sci. 118, e2024752118 (2021).<\/p>

[2] T. Ostapenko, et al, Phys. Rev. Lett. 120, 068002 (2018).<\/p>

Jan Cammann<\/strong><\/p>

Interdisciplinary Centre for Mathematical Modelling, Loughborough University, UK.<\/p>

Jan Cammann completed Bachelor and Master in Physics degrees from the Georg August University of<\/p>

G\u00f6ttingen, Germany between 2013 – 2016 and 2016 \u2013 2019 respectively, while working at the Max<\/p>

Planck Institute for Dynamics and Self-Organization. Currently, Jan is a doctoral student working on<\/p>

microbial motility at the Interdisciplinary Centre for Mathematical Modelling at Loughborough<\/p>

University, UK under supervision of Dr. Marco G. Mazz<\/p>

<\/p><\/div><\/section>","protected":false},"excerpt":{"rendered":"

From single cells to filaments: a dance of geometry and motionIn recent years, biological motile cells like bacteria and microalgae have attracted considerable interestnot only among biologists but also in the physics community and related fields. Understanding theirmotion has immense biological and ecological implications. The possibility to harness their motion topower microdevices is a topic of exceptional importance for modern microtechnology. When the motionof a microscopic organism is observed closely, it appears erratic, and yet the combination ofnonequilibrium forces and surfaces can produce striking examples of organization in microbial systems.Combining experiments, analytical and numerical calculations [1,2] we study the motion of motile cellsunder controlled lab conditions and demonstrate that intricate patterns can be observed from the levelof a single cell exploring an isolated habitat to an entire colony. We consider two model organisms. Inthe first part of this talk, we will discuss the influence of boundaries on the motion of a singleChlamydomonas cell. We theoretically predict a universal relation between probability fluxes andglobal geometric properties that is directly confirmed by experiments [2]. Our results represent a generaldescription of the structure of such nonequilibrium fluxes down at the single cell level. This might openthe possibility of designing devices that are able to guide the motion of such microbial cells. In thesecond part of this talk, we will discuss recent results on colonies of cyanobacteria, their patternformation and order-disorder transition.[1] J. Cammann, et al., Proc. Natl. Acad. Sci. 118, e2024752118 (2021).[2] T. Ostapenko, et al, Phys. Rev. Lett. 120, 068002 (2018).Jan CammannInterdisciplinary Centre for Mathematical Modelling, Loughborough University, UK.Jan Cammann completed Bachelor and Master in Physics degrees from the Georg August University ofG\u00f6ttingen, Germany between 2013 – 2016 and 2016 \u2013 2019 respectively, while working at the MaxPlanck Institute for Dynamics and Self-Organization. Currently, Jan is a doctoral student working onmicrobial motility at the Interdisciplinary Centre for Mathematical Modelling at LoughboroughUniversity, UK under supervision of Dr. Marco G. Mazz<\/p>\n","protected":false},"author":0,"featured_media":2193,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"featured_image_focal_point":[],"show_featured_caption":false,"ulux_newsletter_groups":"","uluxPostTitle":"","uluxPrePostTitle":"","_trash_the_other_posts":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"event_start_date":"2022-12-19 15:00:00","event_end_date":"2022-12-19 16:00:00","event_speaker_name":"Talk by Speaker: Jan Cammann, invited by Prof. Anupam Sengupta","event_speaker_link":"","event_is_online":false,"event_location":"Campus Limpertsberg , BSC 003\r\nwebex link: https:\/\/unilu.webex.com\/unilu\/j.php?MTID=m1e81585df46babf0e6bf3fa3b90b8296","event_street":"","event_location_link":"","event_zip_code":"","event_city":"","event_country":"LU"},"events-topic":[310],"events-type":[],"organisation":[75],"authorship":[],"acf":[],"yoast_head":"\nPhysics Seminar: From single cells to filaments: a dance of geometry and motion - FSTM I Uni.lu<\/title>\n<meta name=\"description\" content=\"From single cells to filaments: a dance of geometry and motionIn recent years, biological motile cells like bacteria and microalgae have attracted considerable interestnot only among biologists but also in the physics community and related fields. Understanding theirmotion has immense biological and ecological implications. The possibility to harness their motion topower microdevices is a topic of exceptional importance for modern microtechnology. When the motionof a microscopic organism is observed closely, it appears erratic, and yet the combination ofnonequilibrium forces and surfaces can produce striking examples of organization in microbial systems.Combining experiments, analytical and numerical calculations we study the motion of motile cellsunder controlled lab conditions and demonstrate that intricate patterns can be observed from the levelof a single cell exploring an isolated habitat to an entire colony. We consider two model organisms. Inthe first part of this talk, we will discuss the influence of boundaries on the motion of a singleChlamydomonas cell. We theoretically predict a universal relation between probability fluxes andglobal geometric properties that is directly confirmed by experiments . Our results represent a generaldescription of the structure of such nonequilibrium fluxes down at the single cell level. This might openthe possibility of designing devices that are able to guide the motion of such microbial cells. In thesecond part of this talk, we will discuss recent results on colonies of cyanobacteria, their patternformation and order-disorder transition. J. Cammann, et al., Proc. Natl. Acad. Sci. 118, e2024752118 (2021). T. Ostapenko, et al, Phys. Rev. Lett. 120, 068002 (2018).Jan CammannInterdisciplinary Centre for Mathematical Modelling, Loughborough University, UK.Jan Cammann completed Bachelor and Master in Physics degrees from the Georg August University ofG\u00f6ttingen, Germany between 2013 - 2016 and 2016 \u2013 2019 respectively, while working at the MaxPlanck Institute for Dynamics and Self-Organization. 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Our results represent a generaldescription of the structure of such nonequilibrium fluxes down at the single cell level. This might openthe possibility of designing devices that are able to guide the motion of such microbial cells. In thesecond part of this talk, we will discuss recent results on colonies of cyanobacteria, their patternformation and order-disorder transition. J. Cammann, et al., Proc. Natl. Acad. Sci. 118, e2024752118 (2021). T. Ostapenko, et al, Phys. Rev. Lett. 120, 068002 (2018).Jan CammannInterdisciplinary Centre for Mathematical Modelling, Loughborough University, UK.Jan Cammann completed Bachelor and Master in Physics degrees from the Georg August University ofG\u00f6ttingen, Germany between 2013 - 2016 and 2016 \u2013 2019 respectively, while working at the MaxPlanck Institute for Dynamics and Self-Organization. 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Our results represent a generaldescription of the structure of such nonequilibrium fluxes down at the single cell level. This might openthe possibility of designing devices that are able to guide the motion of such microbial cells. In thesecond part of this talk, we will discuss recent results on colonies of cyanobacteria, their patternformation and order-disorder transition. J. Cammann, et al., Proc. Natl. Acad. Sci. 118, e2024752118 (2021). T. Ostapenko, et al, Phys. Rev. Lett. 120, 068002 (2018).Jan CammannInterdisciplinary Centre for Mathematical Modelling, Loughborough University, UK.Jan Cammann completed Bachelor and Master in Physics degrees from the Georg August University ofG\u00f6ttingen, Germany between 2013 - 2016 and 2016 \u2013 2019 respectively, while working at the MaxPlanck Institute for Dynamics and Self-Organization. Currently, Jan is a doctoral student working onmicrobial motility at the Interdisciplinary Centre for Mathematical Modelling at LoughboroughUniversity, UK under supervision of Dr. Marco G. 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