IoT-based laser-inscribed sensors for detection of sulfate in water bodies
This paper presents the fabrication of novel flexible sensors from metalized polymer films and their subsequent utilization for environmental applications. Polyethylene terephthalate films coated with thin-film of aluminum was used as a singular material to form the sensor patches. Optimization was...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/146002 |
| _version_ | 1811681027688497152 |
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| author | He, Shan Feng, Shilun Nag, Anindya Afsarimanesh, Nasrin Md. Eshrat E Alahi Li, Siying Mukhopadhyay, Subhas Chandra Wong, Jonathan Woon Chung |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering He, Shan Feng, Shilun Nag, Anindya Afsarimanesh, Nasrin Md. Eshrat E Alahi Li, Siying Mukhopadhyay, Subhas Chandra Wong, Jonathan Woon Chung |
| author_sort | He, Shan |
| collection | NTU |
| description | This paper presents the fabrication of novel flexible sensors from metalized polymer films and their subsequent utilization for environmental applications. Polyethylene terephthalate films coated with thin-film of aluminum was used as a singular material to form the sensor patches. Optimization was done on the laser parameters to form laser-inscribed interdigitated electrodes on the aluminum side of the polymer films. The sensors were then used to detect the presence of sulfate ions in the water samples. Electrochemical impedance spectroscopy was used to detect the resistive and reactive changes with respect to the corresponding changes in the concentration of the tested solutions. Experiments were conducted using five different concentrations ranging between 0.1 ppm and 1000 ppm. The sensitivity, limit of detection and response time of the salts were 0.874 Ω/ppm, 0.1 ppm and one second, respectively. The repeatability of the sensors was also tested to validate their responses for the target analyte. An optimal frequency was chosen to form an IoT-based system that consisted of an impedance analyzer AD 5933, Wi-Fi embedded Arduino and 2:1 multiplexer ADG849. The interfacing of the microcontroller-sensed data was also done with the cloud server to showcase the potentiality of the developed systems as portable devices for real-time applications. |
| first_indexed | 2024-10-01T03:34:25Z |
| format | Journal Article |
| id | ntu-10356/146002 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:34:25Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1460022021-01-20T03:54:44Z IoT-based laser-inscribed sensors for detection of sulfate in water bodies He, Shan Feng, Shilun Nag, Anindya Afsarimanesh, Nasrin Md. Eshrat E Alahi Li, Siying Mukhopadhyay, Subhas Chandra Wong, Jonathan Woon Chung School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Laser-inscription PET This paper presents the fabrication of novel flexible sensors from metalized polymer films and their subsequent utilization for environmental applications. Polyethylene terephthalate films coated with thin-film of aluminum was used as a singular material to form the sensor patches. Optimization was done on the laser parameters to form laser-inscribed interdigitated electrodes on the aluminum side of the polymer films. The sensors were then used to detect the presence of sulfate ions in the water samples. Electrochemical impedance spectroscopy was used to detect the resistive and reactive changes with respect to the corresponding changes in the concentration of the tested solutions. Experiments were conducted using five different concentrations ranging between 0.1 ppm and 1000 ppm. The sensitivity, limit of detection and response time of the salts were 0.874 Ω/ppm, 0.1 ppm and one second, respectively. The repeatability of the sensors was also tested to validate their responses for the target analyte. An optimal frequency was chosen to form an IoT-based system that consisted of an impedance analyzer AD 5933, Wi-Fi embedded Arduino and 2:1 multiplexer ADG849. The interfacing of the microcontroller-sensed data was also done with the cloud server to showcase the potentiality of the developed systems as portable devices for real-time applications. Published version 2021-01-20T03:54:44Z 2021-01-20T03:54:44Z 2020 Journal Article He, S., Feng, S., Nag, A., Afsarimanesh, N., Md. Eshrat E Alahi, Li, S., . . . Wong, J. W. C. (2020). IoT-based laser-inscribed sensors for detection of sulfate in water bodies. IEEE Access, 8, 228879-228890. doi:10.1109/access.2020.3046656 2169-3536 https://hdl.handle.net/10356/146002 10.1109/access.2020.3046656 2-s2.0-85098781656 8 228879 228890 en IEEE Access © 2020 IEEE. This journal is 100% open access, which means that all content is freely available without charge to users or their institutions. All articles accepted after 12 June 2019 are published under a CC BY 4.0 license, and the author retains copyright. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, as long as proper attribution is given. application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Laser-inscription PET He, Shan Feng, Shilun Nag, Anindya Afsarimanesh, Nasrin Md. Eshrat E Alahi Li, Siying Mukhopadhyay, Subhas Chandra Wong, Jonathan Woon Chung IoT-based laser-inscribed sensors for detection of sulfate in water bodies |
| title | IoT-based laser-inscribed sensors for detection of sulfate in water bodies |
| title_full | IoT-based laser-inscribed sensors for detection of sulfate in water bodies |
| title_fullStr | IoT-based laser-inscribed sensors for detection of sulfate in water bodies |
| title_full_unstemmed | IoT-based laser-inscribed sensors for detection of sulfate in water bodies |
| title_short | IoT-based laser-inscribed sensors for detection of sulfate in water bodies |
| title_sort | iot based laser inscribed sensors for detection of sulfate in water bodies |
| topic | Engineering::Electrical and electronic engineering Laser-inscription PET |
| url | https://hdl.handle.net/10356/146002 |
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