کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
613771 | 880727 | 2006 | 6 صفحه PDF | دانلود رایگان |
The wall effects on electrophoretic motion of spherical polystyrene particles in a rectangular poly(dimethylsiloxane) microchannel were studied experimentally. It is found that the particle electrophoretic velocity is insensitive to the trajectory between the channel sidewalls, consistent with the theoretical prediction. We also demonstrate that the electrophoretic motion of larger particles along the channel centerline is more viscously retarded by the sidewalls of a narrower channel. This observation is well predicted by incorporating the analytical models for the particle electrophoresis along the centerline of a slit channel and along the axis of a cylindrical pore.
The observed wall effects were explained by incorporating the analytical models for the particle electrophoresis along the centerline of a slit channel and along the axis of a cylindrical pore.Figure optionsDownload as PowerPoint slide
Journal: Journal of Colloid and Interface Science - Volume 296, Issue 2, 15 April 2006, Pages 743–748