An integrated platform of metamaterial-based sensing and surface acoustic wave-based acoustofluidics utilising circular interdigital transducers

Zahertar, Shahrzad, Torun, Hamdi, Tao, Ran, Canyelles-Pericas, Pep, Luo, Jing Ting, Wu, Qiang and Fu, Yong Qing (2022) An integrated platform of metamaterial-based sensing and surface acoustic wave-based acoustofluidics utilising circular interdigital transducers. Sensors and Diagnostics, 1 (2). pp. 270-279. ISSN 2635-0998

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Official URL: https://doi.org/10.1039/D1SD00050K

Abstract

A key challenge in developing lab-on-a-chip devices is to integrate various functionalities such as liquid manipulation and sensing on a single platform, which conventionally requires different technologies to be separately optimized. In this paper, we design circular or ring-shape interdigitated structures on a piezoelectric substrate that can be used for both sensing and liquid manipulation for point-of-care applications. We present acoustofluidic functionalities including streaming, jetting and nebulisation using the circular surface acoustic wave device to demonstrate the acoustofluidic manipulation capabilities of the actuator. We then optimise the design inspired by the double split-ring resonator geometry so that the device geometry can be used as a high performance wireless and electromagnetic sensor. We present the wireless-sensing capabilities of the device with case studies in monitoring glucose concentration and fermentation process of yeast cells.

Item Type: Article
Additional Information: Funding information: This work was financially supported by the UK Engineering, and Physical Sciences Research Council (EPSRC) grants EP/P018998/1, and Special Interests Group of Acoustofluidics under the EPSRC-funded UK Fluidic Network (EP/N032861/1), as well as EPSRC NetworkPlus in Digitalised Surface Manufacturing EP/S036180/1.
Subjects: F200 Materials Science
F300 Physics
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: John Coen
Date Deposited: 31 Jan 2022 14:40
Last Modified: 18 Mar 2022 15:45
URI: http://nrl.northumbria.ac.uk/id/eprint/48304

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