A low cost and flexible carbon nanotube pH sensor fabricated using aerosol jet technology for live cell applications
Minute pH changes impact all living organisms, and thus facile pH monitoring in environment and onthe cellular level is important. A low cost and flexible carbon nanotube based pH sensor is fabricated inthis work using Aerosol jet printing technique. The chemiresistive pH sensor is fabricated with a...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/82690 http://hdl.handle.net/10220/50407 |
| _version_ | 1826109727602376704 |
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| author | Goh, Guo Liang Agarwala, Shweta Tan, Yu Jun Yeong, Wai Yee |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Goh, Guo Liang Agarwala, Shweta Tan, Yu Jun Yeong, Wai Yee |
| author_sort | Goh, Guo Liang |
| collection | NTU |
| description | Minute pH changes impact all living organisms, and thus facile pH monitoring in environment and onthe cellular level is important. A low cost and flexible carbon nanotube based pH sensor is fabricated inthis work using Aerosol jet printing technique. The chemiresistive pH sensor is fabricated with a CNT-based miniaturized serpentine sensing element printed on top of the silver electrodes. The trace width ofthe serpentine sensing element is accurately controlled to about the same size as the gaps between thetraces. Aerosol jet parameters are optimized to achieve high resolution printing of 20 m. The fabricatedpH sensor shows good sensitivity (up to 59 k /pH) and repeatability (coefficient of variance <1.15%)with a response time of 20 s the sensor demonstrates excellent biocompatibility required for live cellapplications. |
| first_indexed | 2024-10-01T02:23:01Z |
| format | Journal Article |
| id | ntu-10356/82690 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:23:01Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/826902020-03-07T12:47:08Z A low cost and flexible carbon nanotube pH sensor fabricated using aerosol jet technology for live cell applications Goh, Guo Liang Agarwala, Shweta Tan, Yu Jun Yeong, Wai Yee School of Mechanical and Aerospace Engineering Singapore Centre for 3D Printing Aerosol Jet pH Sensor Engineering::Mechanical engineering Minute pH changes impact all living organisms, and thus facile pH monitoring in environment and onthe cellular level is important. A low cost and flexible carbon nanotube based pH sensor is fabricated inthis work using Aerosol jet printing technique. The chemiresistive pH sensor is fabricated with a CNT-based miniaturized serpentine sensing element printed on top of the silver electrodes. The trace width ofthe serpentine sensing element is accurately controlled to about the same size as the gaps between thetraces. Aerosol jet parameters are optimized to achieve high resolution printing of 20 m. The fabricatedpH sensor shows good sensitivity (up to 59 k /pH) and repeatability (coefficient of variance <1.15%)with a response time of 20 s the sensor demonstrates excellent biocompatibility required for live cellapplications. NRF (Natl Research Foundation, S’pore) 2019-11-13T08:58:49Z 2019-12-06T15:00:24Z 2019-11-13T08:58:49Z 2019-12-06T15:00:24Z 2017 Journal Article Goh, G. L., Agarwala, S., Tan, Y. J., & Yeong, W. Y. (2018). A low cost and flexible carbon nanotube pH sensor fabricated using aerosol jet technology for live cell applications. Sensors and Actuators B: Chemical, 260, 227-235. doi:10.1016/j.snb.2017.12.127 0925-4005 https://hdl.handle.net/10356/82690 http://hdl.handle.net/10220/50407 10.1016/j.snb.2017.12.127 en Sensors and Actuators B: Chemical © 2017 Elsevier B.V. All rights reserved. This paper was published in Sensors and Actuators B: Chemical and is made available with permission of Elsevier B.V. |
| spellingShingle | Aerosol Jet pH Sensor Engineering::Mechanical engineering Goh, Guo Liang Agarwala, Shweta Tan, Yu Jun Yeong, Wai Yee A low cost and flexible carbon nanotube pH sensor fabricated using aerosol jet technology for live cell applications |
| title | A low cost and flexible carbon nanotube pH sensor fabricated using aerosol jet technology for live cell applications |
| title_full | A low cost and flexible carbon nanotube pH sensor fabricated using aerosol jet technology for live cell applications |
| title_fullStr | A low cost and flexible carbon nanotube pH sensor fabricated using aerosol jet technology for live cell applications |
| title_full_unstemmed | A low cost and flexible carbon nanotube pH sensor fabricated using aerosol jet technology for live cell applications |
| title_short | A low cost and flexible carbon nanotube pH sensor fabricated using aerosol jet technology for live cell applications |
| title_sort | low cost and flexible carbon nanotube ph sensor fabricated using aerosol jet technology for live cell applications |
| topic | Aerosol Jet pH Sensor Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/82690 http://hdl.handle.net/10220/50407 |
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