Analytical electric field and sensitivity analysis for two microfluidic impedance cytometer designs
Sun, Tao, Green, Nicolas G, Gawad, Shady and Morgan, Hywel (2007) Analytical electric field and sensitivity analysis for two microfluidic impedance cytometer designs. IET Nanobiotechnology, 1, (5), 69-79.
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Microfabricated impedance cytometers have been developed to measure the electrical impedance of single biological particles at high speed. A general approach to analytically solve the electric field distributions for two different designs of cytometers: parallel facing electrodes and coplanar electrodes, using the Schwarz–Christoffel Mapping method is presented. Compared to previous analytical solutions, our derivations are more systematic and solutions are more straightforward. The solutions have been validated by comparison with numerical simulations performed using the finite element method. The influences on the electric field distribution due to the variations in the geometry of the devices have been discussed. A simple method is used to determine the impedance sensitivity of the system and to compare the two electrode designs. For identical geometrical parameters, we conclude that the parallel electrodes design is more sensitive than the coplanar electrodes.
|Divisions:||Faculty of Physical and Applied Science > Electronics and Computer Science > NANO
|Date Deposited:||21 Aug 2007|
|Last Modified:||21 Aug 2012 04:06|
|Contributors:||Sun, Tao (Author)
Green, Nicolas G (Author)
Gawad, Shady (Author)
Morgan, Hywel (Author)
|Further Information:||Google Scholar|
|ISI Citation Count:||22|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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