PIRSA:13120038

Video URL

https://pirsa.org/13120038

Dynamic Force Patterns of an Undulatory Microswimmer

Shulman, R. (2013). Dynamic Force Patterns of an Undulatory Microswimmer. Perimeter Institute for Theoretical Physics. https://pirsa.org/13120038

Shulman, Rafael. Dynamic Force Patterns of an Undulatory Microswimmer. Perimeter Institute for Theoretical Physics, Dec. 05, 2013, https://pirsa.org/13120038 

          @misc{ scivideos_PIRSA:13120038,
            doi = {10.48660/13120038},
            url = {https://pirsa.org/13120038},
            author = {Shulman, Rafael},
            keywords = {},
            language = {en},
            title = {Dynamic Force Patterns of an Undulatory Microswimmer},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2013},
            month = {dec},
            note = {PIRSA:13120038 see, \url{https://scivideos.org/pirsa/13120038}}
          }

Rafael Shulman McMaster University

Talk numberPIRSA:13120038
DOI10.48660/13120038
Source RepositoryPIRSA
Collection
Talk Type Conference

Abstract

C. elegans is a millimeter-sized nematode which has served as a model organism in biology for several decades primarily due to its simple anatomy. Using an undulatory form of locomotion this worm is capable of propelling itself through various media. Due to the small length scales involved swimming in this regime is qualitatively different from macroscopic locomotion because the swimmers can be considered to have no inertia. In order to understand the microswimming that this worm exhibits it is crucial to determine the viscous forces experienced during its motion. Using a micropipette deflection technique in conjunction with high speed imaging we have directly measured the time-varying forces generated by C elegans during swimming. Furthermore by analyzing the bodys kinematics over time and applying a simple model of locomotion we can compute the theoretical force curves. We observe excellent agreement between the measured and calculated forces. The success of this simple model has important implications in the understanding of microswimming in general.