1A1-L05 境界近傍を遊泳する単毛性細菌の運動特性 : 2方向計測による3次元軌跡及び菌の姿勢推定

概要

論文の詳細を見る
We experimentally investigate a hydrodynamic effect of a free surface on swimming of singly flagellated bacteria. In order to obtain a three-dimensional swimming trajectory and an orientation of a cell, we have developed biplane microscopy that enables us to observe the same sample at the same time from two directions. Three-dimensional observation reveals that swimming speed and trajectory depend on cell's orientation and distance from a free surface, which demonstrates the influence of a boundary on bacterial swimming. Bacteria have larger swimming speed with their flagella near the surface. They have larger curvature of trajectory near a free surface, especially in the case of backward swimming. These results may be applicable to self-propelling micro-machines moving close to a surface.
一般社団法人日本機械学会の論文
2009-05-25