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Efficient microwave heating of microfluidic systems

Morgan, Alex John, Naylon, Alexander Jack, Gooding, Sarah Victoria, John, Christopher David, Squires, Oliver Leslie, Lees, Jonathan, Barrow, David Anthony and Porch, Adrian 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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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: 10 Sep 2022 08:07

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