Valveless micropump combined with inertial separation in a contraction–expansion array microchannel system
Date Issued
2015
Date
2015
Author(s)
Tsui, Wen-Han
Abstract
We designed a system with valveless micropump and inertial separation microchannel. With this device, we want to separate the different size of particles from the sample fluid without other additional forces. We successfully made a valveless micropump and inertial separation microchannel, and they can work individually. The volume rate of the vlaveless micropump can reach about 15ml/hr with 400~500Hz of given frequency. The individual valveless micropump can provide similar volume rate, and it means that the reliability of the individual valveless micropump is high. In the continuous testing of valveless micropump, we found that the volume rate decrease. In the inertial separation microchannel experiment, we set the sample volume rate as 1ml/hr and the buffer volume rate as 8ml/hr. We successfully separate the 10μm and 6μm fluorescent beads. We combined these two parts and want to make the whole system work, and we verify the pressure produced by the micropump, and the resistance in the inertial separation microchannel. We give some feasible improvements that can raise the whole performance of this valveless micropump and inertial separation microchannel system and try to make it a point-of-care device.
Subjects
microfluid
micropump
inertial separation
Type
thesis
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