2P1-A24 壁近くを泳ぐ単毛性細菌の形状と運動速度の関係

概要

論文の詳細を見る
Bacteria swimming close to a rigid boundary often trace circular trajectories. An E. Coli cell, which utilizes a bundle of several flagella as a screw, swims clockwise above a boundary when it is observed from above. In contrast, a Vibrio cell, which possesses a single flagellum, swims counterclockwise in a way that the flagellum pulls the cell body. Also, the swimming speed of them are affected by the boundary. In this study, the velocities and angular velocities of bacterium models swimming close to a rigid boundary are calculated by use of the boundary element analysis. They are compared to those of models swimming in free space. The degree of fluid dynamic interactions, between the cell body and the boundary, and between the flagellum and the boundary is crucial to explain the variety of motions of bacteria swimming close to a boundary.
一般社団法人日本機械学会の論文