Size-dependent dielectrophoretic crossover frequency of spherical particles
PY Weng, IA Chen, CK Yeh, PY Chen, JY Juang - Biomicrofluidics, 2016 - pubs.aip.org
Dielectrophoresis (DEP) has been extensively used in lab-on-a-chip systems for trapping,
separating, and manipulating of micro particles suspended in a liquid medium. The most
widely used analytic model, the dipole model, provides an accurate prediction on the
crossover frequency of submicron particles, but cannot explain the significant drop in
crossover frequency of larger particles. Here, we present numerical simulations using the
Maxwell stress tensor (MST) and finite element method to study the size effect of the DEP …
separating, and manipulating of micro particles suspended in a liquid medium. The most
widely used analytic model, the dipole model, provides an accurate prediction on the
crossover frequency of submicron particles, but cannot explain the significant drop in
crossover frequency of larger particles. Here, we present numerical simulations using the
Maxwell stress tensor (MST) and finite element method to study the size effect of the DEP …
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