1P1-D05 自由表面と表面近傍での単毛性細菌の個体数の推移,速度,軌跡(バイオミメティクス・ロボティクス)

概要

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The influence of a rigid surface and a free surface on the motion of singly flagellated bacteria was investigated. Backward swimming cells tended to gather on a rigid surface while forward swimming cells do not, which had been predicted by a fluid dynamic simulation on asymmetric characteristics between forward and backward motions close to a rigid surface. This tendency was unrelated to the electrostatic charge of the surface. The accumulation of backward swimming cells near a free surface was also confirmed. The trajectory of the cells swimming near a rigid surface comprised circular parts, which corresponded to backward motion. Similar circular parts were observed in the trajectory near a free surface, although they were not proved to belong backward motion. 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
2007-05-11