Journal
SCIENTIFIC REPORTS
Volume 8, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41598-018-21827-7
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Funding
- National Natural Science Foundation of China [51606054, 51776057]
- China Postdoctoral Science Foundation [2013M541374]
- Postdoctoral Scientific Research Development Fund [LBH-Q16087]
- Heilongjiang Province Postdoctoral Foundation [LBH-Z15063]
- China Postdoctoral International Exchange Program
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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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