A long-standing issue for microfluidic impedance cytometry
devices
is the accuracy in determining the size of cells during counting and
measurements. In this paper, we introduce a novel design that produces
a homogeneous electric field in the sensing region and demonstrates
higher accuracy than traditional designs in cell counting and sizing,
reducing the reliance on cell focusing and signal postprocessing.
The concept is validated, and the increased accuracy of the device
over traditional designs is demonstrated through the use of finite
element simulations to generate suitable data sets for particle trajectories
and model expected signal variations.