水薄膜内での精子遊泳観察(J07-1 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(1),J07 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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Flagella and cilia of eukaryotic cells are autonomous machinery to propel small cells in the medium under the condition of low Reynolds' number. Since they can keep almost constant activity and wave patterns in a wide range of viscosity, the intrinsic mechanism of motion control seems to be working well by modifying the activity of dynein motors depending on given viscosity loads. Therefore, one of the most crucial points to be clarified to understand the mechanism is the exact description of viscosity effects on the motion. In the present study, I developed a new method to observe the planar beats of sea-urchin (Anthocidaris crassispina) sperm flagella under two-dimensional conditions, i.e., a thin liquid film formed in a modified Mysels' cell. By the new method, it is expected that the analysis of fluid dynamics can be simplified, and that we can observe the motion in a wide range of viscosity load comparing with conventional methods.
一般社団法人日本機械学会の論文
2004-09-04