1143 境界近傍での単毛性細菌の運動(J04-3 生物の運動機能/バイオミメティクスとバイオメカニクス/バイオロボティクスとバイオメカトロニクス(3),J04 生物の運動機能/バイオミメティクスとバイオメカニクス/バイオロボティクスとバイオメカトロニクス)

概要

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The influences of a rigid surface and a free surface on the motions of singly flagellated bacteria have been investigated. The motions of backward swimming cells are significantly changed by the two surfaces while the forward swimming cells are rarely affected. Both of the surfaces influence the velocity in a similar manner as well as the trajectory, although the quantitative effects of the two surfaces are different. The trajectory of the backward swimming cells near a rigid surface comprises circular parts. Similar circular parts have been observed in the trajectory near a free surface. The velocity of the backward swimming cells either near a rigid surface or near a free surface is higher than the velocity in a free space. However, the curvature and the velocity appeared near the rigid surface is bigger and higher than the curvature and the velocity near a fine surface, respectively. Forward swimming cells tend to draw a rectilinear swimming trajectory irrespective of the surfaces. T velocity of the forward swimming cells near a rigid surface or a free surface does not differ from the velocity in a free space.
社団法人日本機械学会の論文
2007-09-07