Integrated microfluidic capillary in a waveguide resonator for chemical and biomedical sensing

A novel microfluidic sensing device based on waveguide cavity filters is proposed for the characterisation, detection of cells in solution and chemical substances in micro-litre volumes. The sensor consists of a micromachined microfluidic channel within a waveguide-based resonator localised increase...

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Bibliographic Details
Published in:Journal of physics. Conference series 2009-07, Vol.178 (1), p.012009
Main Authors: Pavuluri, S K, Lopez-Villarroya, R, McKeever, E, Goussetis, G, Desmulliez, M P Y, Kavanagh, D
Format: Article
Language:English
Subjects:
Electromagnetic wave filters
Microfluidics
Micromachining
Physics
Resonators
Superhigh frequencies
Waveguides
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Summary:A novel microfluidic sensing device based on waveguide cavity filters is proposed for the characterisation, detection of cells in solution and chemical substances in micro-litre volumes. The sensor consists of a micromachined microfluidic channel within a waveguide-based resonator localised increased near-fields and could potentially be designed for different frequency regimes to improve the sensitivity. The present sensor has been proposed for fabrication in different manufacturing platforms and an initial prototype with a 100μm micromachined channel that is embedded within an X-band E-plane waveguide has been fabricated and tested. The design methodology for the microfluidic channel and the E-plane filter is also presented.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/178/1/012009