Relationship between Hydrophobic Beads Attachment and Fluid Flow in PDMS Microchannel

T. Okamoto, T. Yamamoto, Atsuko Takamatsu, N. Kaneko, T. Fujii
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Abstract

The hydrophobic beads as mimic of the living cell attachment to microchannel in fluid flow were observed and analyzed. Beads were collided to the microchannel wall by the right angle flow. We found that beads attachment in the fluid flow should be decided by the fluid velocity to the wall, and hydrophobic interaction between the channel and beads. Shear force is less effective in this case
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PDMS微通道中疏水微珠附着与流体流动的关系
观察并分析了疏水微珠模拟活细胞在流体流动中与微通道的附着。微珠通过直角流碰撞到微通道壁上。研究发现,微球在流体流动中的附着取决于流体对管壁的速度以及通道与微球之间的疏水相互作用。在这种情况下,剪力的作用较小
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