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Efficient microwave heating of microfluidic systems

Morgan, Alex John ORCID: https://orcid.org/0000-0003-1975-1544, Naylon, Alexander Jack, Gooding, Sarah Victoria, John, Christopher David, Squires, Oliver Leslie, Lees, Jonathan ORCID: https://orcid.org/0000-0002-6217-7552, Barrow, David Anthony ORCID: https://orcid.org/0000-0003-2096-7262 and Porch, Adrian ORCID: https://orcid.org/0000-0001-5293-8883 2013. Efficient microwave heating of microfluidic systems. Sensors and Actuators B: Chemical 181 , pp. 904-909. 10.1016/j.snb.2013.02.099

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Abstract

This paper presents a 2.45 GHz microwave cavity resonator with the novel dual function of both sensitive dielectric characterisation and directed, volumetric heating of fluids in a microfluidic chip. This method is shown to have a higher efficiency (> 90% for methanol) than previous microfluidic microwave heating methods and can regulate heating using real time cavity characterisation. The system is simple, robust and does not require on-chip integration of microwave waveguide structures. Furthermore, this method can be combined with miniaturised resonators (such as split rings) for localisation of heating within a microfluidic chip.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Uncontrolled Keywords: Microwave resonator; dielectric heating; industrial microfluidics; microwave-assisted extraction
Publisher: Elsevier
ISSN: 0925-4005
Last Modified: 09 Nov 2022 09:22
URI: https://orca.cardiff.ac.uk/id/eprint/44852

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