Online ISSN
1751-875X
Print ISSN
1751-8741
IET Nanobiotechnology
Volume 1, Issue 5, October 2007
Volumes & issues:
Volume 1, Issue 5
October 2007
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- Author(s): T. Sun ; N.G. Green ; S. Gawad ; H. Morgan
- Source: IET Nanobiotechnology, Volume 1, Issue 5, p. 69 –79
- DOI: 10.1049/iet-nbt:20070019
- Type: Article
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p.
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. - Author(s): S. Smith ; T.B. Tang ; J.G. Terry ; J.T.M. Stevenson ; B.W. Flynn ; H.M. Reekie ; A.F. Murray ; A.M. Gundlach ; D. Renshaw ; B. Dhillon ; A. Ohtori ; Y. Inoue ; A.J. Walton
- Source: IET Nanobiotechnology, Volume 1, Issue 5, p. 80 –86
- DOI: 10.1049/iet-nbt:20070022
- Type: Article
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80
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The development of an implantable system designed to deliver drug doses in a controlled manner over an extended time period is reported. Key performance parameters are the physical size, the power consumption and also the ability to perform wireless communications to enable the system to be externally controlled and interrogated. The system has been designed to facilitate wireless power transfer, which is very important for miniaturisation as it removes the need for a battery.
Analytical electric field and sensitivity analysis for two microfluidic impedance cytometer designs
Development of a miniaturised drug delivery system with wireless power transfer and communication
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