15-20 June 2014
Laurentian University / Université Laurentienne
America/Toronto timezone
Welcome to the 2014 CAP Congress! / Bienvenue au congrès de l'ACP 2014!

Collective Motion of Magnetotactic Bacteria

19 Jun 2014, 09:30
15m
A-226 (Laurentian University / Université Laurentienne)

A-226

Laurentian University / Université Laurentienne

Sudbury, Ontario
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition) Medical and Biological Physics / Physique médicale et biologique (DMBP-DPMB) (R1-4) Biophysics/Soft Condensed Matter V - DMBP-DCMMP / Biophysique et matière condensée molle V - DPMB-DPMCM

Speaker

Solomon Barkley (M)

Description

Magnetotactic bacteria synthesize magnetic crystals in specialized organelles. This causes the cells to align with external magnetic fields. The movement of magnetotactic bacteria in applied magnetic fields has been studied previously, but only in the dilute limit in which cells do not interact. At much higher concentrations, hydrodynamic interactions and collisions can significantly alter the motion of individual cells as compared to their behaviour in isolation. These collective effects have not been previously studied in the case of magnetotactic bacteria. By tuning cell density and magnetic field, changes to cellular organization and movement are observed, as measured through microrheological and image analysis approaches.

Primary author

Co-authors

Dr Cecile Fradin (McMaster University) Dr Kari Dalnoki-Veress (McMaster University)

Presentation Materials

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