Flexible platform of acoustofluidics and metamaterials with decoupled resonant frequencies
Flexible platform of acoustofluidics and metamaterials with decoupled resonant frequencies
The key challenge for a lab-on-chip (LOC) device is the seamless integration of key elements of biosensing and actuation (e.g., biosampling or microfluidics), which are conventionally realised using different technologies. In this paper, we report a convenient and efficient LOC platform fabricated using an electrode patterned flexible printed circuit board (FPCB) pressed onto a piezoelectric film coated substrate, which can implement multiple functions of both acoustofluidics using surface acoustic waves (SAWs) and sensing functions using electromagnetic metamaterials, based on the same electrode on the FPCB. We explored the actuation capability of the integrated structure by pumping a sessile droplet using SAWs in the radio frequency range. We then investigated the hybrid sensing capability (including both physical and chemical ones) of the structure employing the concept of electromagnetic split-ring resonators (SRRs) in the microwave frequency range. The originality of this sensing work is based on the premise that the proposed structure contains three completely decoupled resonant frequencies for sensing applications and each resonance has been used as a separate physical or a chemical sensor. This feature compliments the acoustofluidic capability and is well-aligned with the goals set for a successful LOC device.
acoustofluidics, droplet actuation, electromagnetic metamaterials, hybrid physical and chemical sensors, microfluidics, surface acoustic waves
Zahertar, Shahrzad
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Torun, Hamdi
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Sun, Chao
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Markwell, Christopher
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Dong, Yinhua
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Yang, Xin
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Fu, Yongqing
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7 June 2022
Zahertar, Shahrzad
9e9db9c7-0e1e-4d50-99b8-af23e09ab6ae
Torun, Hamdi
6635ce04-57c2-4847-9cce-67ce2425d32b
Sun, Chao
1bb3913e-d2af-4238-bd03-430a9844c55c
Markwell, Christopher
5ea89f28-8ed0-4c9a-86e7-0a1c75c2cefa
Dong, Yinhua
64a2d6ac-79d9-46cc-8222-077a72d388ab
Yang, Xin
573d93c9-b12a-46ef-bb2c-4c66f29fad96
Fu, Yongqing
8e1a4360-158f-4498-a7e7-6aeec6c60d97
Zahertar, Shahrzad, Torun, Hamdi, Sun, Chao, Markwell, Christopher, Dong, Yinhua, Yang, Xin and Fu, Yongqing
(2022)
Flexible platform of acoustofluidics and metamaterials with decoupled resonant frequencies.
Sensors, 22 (12), [4344].
(doi:10.3390/s22124344).
Abstract
The key challenge for a lab-on-chip (LOC) device is the seamless integration of key elements of biosensing and actuation (e.g., biosampling or microfluidics), which are conventionally realised using different technologies. In this paper, we report a convenient and efficient LOC platform fabricated using an electrode patterned flexible printed circuit board (FPCB) pressed onto a piezoelectric film coated substrate, which can implement multiple functions of both acoustofluidics using surface acoustic waves (SAWs) and sensing functions using electromagnetic metamaterials, based on the same electrode on the FPCB. We explored the actuation capability of the integrated structure by pumping a sessile droplet using SAWs in the radio frequency range. We then investigated the hybrid sensing capability (including both physical and chemical ones) of the structure employing the concept of electromagnetic split-ring resonators (SRRs) in the microwave frequency range. The originality of this sensing work is based on the premise that the proposed structure contains three completely decoupled resonant frequencies for sensing applications and each resonance has been used as a separate physical or a chemical sensor. This feature compliments the acoustofluidic capability and is well-aligned with the goals set for a successful LOC device.
Text
sensors-22-04344
- Version of Record
More information
Accepted/In Press date: 6 June 2022
Published date: 7 June 2022
Additional Information:
Funding Information:
Funding: This project received funding from the Engineering Physics and Science Research Council of UK (EPSRC EP/P018998/1) and the ATTRACT project funded by the EC under Grant Agreement 777222. and UK Fluidic Network (EP/N032861/1) Special Interest Group of Acoustofluidics, and EPSRC NetworkPlus in Digitalised Surface Manufacturing (EP/S036180/1).
Keywords:
acoustofluidics, droplet actuation, electromagnetic metamaterials, hybrid physical and chemical sensors, microfluidics, surface acoustic waves
Identifiers
Local EPrints ID: 475403
URI: http://eprints.soton.ac.uk/id/eprint/475403
ISSN: 1424-8220
PURE UUID: dd767b21-15f5-430e-bf94-25b35f342afc
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Date deposited: 17 Mar 2023 17:31
Last modified: 18 Mar 2024 04:03
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Contributors
Author:
Shahrzad Zahertar
Author:
Hamdi Torun
Author:
Chao Sun
Author:
Christopher Markwell
Author:
Yinhua Dong
Author:
Xin Yang
Author:
Yongqing Fu
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