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 u...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/12/4344 |
| _version_ | 1797482514373148672 |
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| author | Shahrzad Zahertar Hamdi Torun Chao Sun Christopher Markwell Yinhua Dong Xin Yang Yongqing Fu |
| author_facet | Shahrzad Zahertar Hamdi Torun Chao Sun Christopher Markwell Yinhua Dong Xin Yang Yongqing Fu |
| author_sort | Shahrzad Zahertar |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-09T22:33:28Z |
| format | Article |
| id | doaj.art-0f25a4e7b8424ae381e66f8e23935cea |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T22:33:28Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-0f25a4e7b8424ae381e66f8e23935cea2023-11-23T18:51:59ZengMDPI AGSensors1424-82202022-06-012212434410.3390/s22124344Flexible Platform of Acoustofluidics and Metamaterials with Decoupled Resonant FrequenciesShahrzad Zahertar0Hamdi Torun1Chao Sun2Christopher Markwell3Yinhua Dong4Xin Yang5Yongqing Fu6Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UKFaculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UKSchool of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, ChinaFaculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UKDepartment of Neurology, Tianjin 4th Centre Hospital Affiliated to Nankai University, Tianjin 300140, ChinaDepartment of Electrical and Electronic Engineering, School of Engineering, Cardiff University, Cardiff CF24 3AA, UKFaculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UKThe 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.https://www.mdpi.com/1424-8220/22/12/4344electromagnetic metamaterialsacoustofluidicssurface acoustic wavesmicrofluidicshybrid physical and chemical sensorsdroplet actuation |
| spellingShingle | Shahrzad Zahertar Hamdi Torun Chao Sun Christopher Markwell Yinhua Dong Xin Yang Yongqing Fu Flexible Platform of Acoustofluidics and Metamaterials with Decoupled Resonant Frequencies Sensors electromagnetic metamaterials acoustofluidics surface acoustic waves microfluidics hybrid physical and chemical sensors droplet actuation |
| title | Flexible Platform of Acoustofluidics and Metamaterials with Decoupled Resonant Frequencies |
| title_full | Flexible Platform of Acoustofluidics and Metamaterials with Decoupled Resonant Frequencies |
| title_fullStr | Flexible Platform of Acoustofluidics and Metamaterials with Decoupled Resonant Frequencies |
| title_full_unstemmed | Flexible Platform of Acoustofluidics and Metamaterials with Decoupled Resonant Frequencies |
| title_short | Flexible Platform of Acoustofluidics and Metamaterials with Decoupled Resonant Frequencies |
| title_sort | flexible platform of acoustofluidics and metamaterials with decoupled resonant frequencies |
| topic | electromagnetic metamaterials acoustofluidics surface acoustic waves microfluidics hybrid physical and chemical sensors droplet actuation |
| url | https://www.mdpi.com/1424-8220/22/12/4344 |
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