Premium
Front Cover: Concentration‐controlled particle focusing in spiral elasto‐inertial microfluidic devices
Author(s) -
Xiang Nan,
Ni Zhonghua,
Yi Hong
Publication year - 2018
Publication title -
electrophoresis
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.201870011
Subject(s) - spiral (railway) , particle (ecology) , microfluidics , materials science , channel (broadcasting) , viscoelasticity , mechanics , nanotechnology , optics , physics , composite material , mechanical engineering , geology , computer science , telecommunications , engineering , oceanography
DOI: 10.1002/elps.201700150 The cover picture shows the concentration‐controlled particle focusing in a scenario of water park. In spiral elasto‐inertial microfluidic devices (the water slides), the particles (the cartoon balls) can be focused at the channel centerline when the polymer concentrations of viscoelastic fluids are high (the left water slide with deep yellow water). This center‐line focusing may serve as a potential pretreatment for microflow cytometry detection. At low polymer concentrations, the particles (the cartoon balls) shift towards the outer channel wall (the right water slide with light yellow water). Finally, we employed the observed position‐shifting for throughput particle concentration.