The effect of superhydrophobic SU-8 patterned surfaces on the response of the quartz crystal microbalance

Roach, Paul, Evans, Chris, McHale, Glen, Shirtcliffe, Neil and Newton, Michael (2006) The effect of superhydrophobic SU-8 patterned surfaces on the response of the quartz crystal microbalance. In: 10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006, 5-9 November 2006, Tokyo.

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Abstract

SU-8 photoresist was used to construct 5 micrometer diameter pillar arrays on quartz crystal microbalance (QCM) surfaces spaced 10 micrometers centre to centre, with varying heights from 5 to 25 micrometers. Liquid responses of the patterned QCMs are reported for a series of glycerol-water mixtures to cover a broad density-viscosity product range. Hydrophobic chemical treatment of the patterned surfaces was also conducted, with contact angle measurements being studied to assess the wetting state. The frequency spectra were recorded and fitted to a Butterworh van Dyke model, allowing changes in frequency, resistance, dissipation and a Newtonian liquid check to be carried out.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	F200 Materials Science
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Becky Skoyles
Date Deposited:	08 Jun 2017 09:42
Last Modified:	12 Oct 2019 19:06
URI:	http://nrl.northumbria.ac.uk/id/eprint/30982

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