Dynamic control of particle separation in deterministic lateral displacement separator with viscoelastic fluids.

Dynamic control of particle separation in deterministic lateral displacement separator with viscoelastic fluids.
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粘弹性流体确定性横向位移分离器中颗粒分离的动态控制

DOI:
10.1038/s41598-018-21827-7
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发表时间:
2018-02-26
期刊:
影响因子:
4.6
通讯作者:
Li F
Li F
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Li Y;Zhang H;Li Y;Li X;Wu J;Qian S;Li F

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提出了一种利用粘弹性流体在确定性侧向位移阵列中实现颗粒分离动态控制的新方法。研究了剪切变稀和流体弹性对DLD阵列临界分离尺寸的影响。据观察,每一个效果可以导致约40%的临界分离尺寸的变化。由于流体的弹性强度与剪切速率有关,因此首次可以通过调节微通道中的流速来轻松实现动态控制。
We proposed an innovative method to achieve dynamic control of particle separation by employing viscoelastic fluids in deterministic lateral displacement (DLD) arrays. The effects of shear-thinning and elasticity of working fluids on the critical separation size in DLD arrays are investigated. It is observed that each effect can lead to the variation of the critical separation size by approximately 40%. Since the elasticity strength of the fluid is related to the shear rate, the dynamic control can for the first time be easily realized through tuning the flow rate in microchannels.
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