The investigation of chlorpyrifos (Cpy) detection of PEDOT:PSS‑MXene(Ti2CTX)‑BSA‑GO composite using P‑ISFET reduction method
MXenes are two-dimensional materials that are attractive for applications as sensors because they possess high conductivity, super hydrophilicity and high surface area. There already exist substantial researches on the use of Ti3C2Tx based MXenes as electrochemical biosensors, but in contrast Ti2CTX...
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| Format: | Article |
| Language: | en |
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Springer
2023
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| Online Access: | http://eprints.uthm.edu.my/10152/1/J16311_aaf58b34af0553c2cd5d96ac6e4d20dc.pdf http://eprints.uthm.edu.my/10152/ https://doi.org/10.1007/s00289-022-04105-5 |
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| author | Megat Hasnan, M. M. I. Lim, G. P. Nayan, N. Soon, C. F. Abd Halim, A. A. Ahmad, M. K. Said, S. M. Mohamed Ali, M. S. Noor, I. M. |
| author_facet | Megat Hasnan, M. M. I. Lim, G. P. Nayan, N. Soon, C. F. Abd Halim, A. A. Ahmad, M. K. Said, S. M. Mohamed Ali, M. S. Noor, I. M. |
| author_sort | Megat Hasnan, M. M. I. |
| building | UTHM Library |
| collection | Institutional Repository |
| content_provider | Universiti Tun Hussein Onn Malaysia |
| content_source | UTHM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | MXenes are two-dimensional materials that are attractive for applications as sensors because they possess high conductivity, super hydrophilicity and high surface area. There already exist substantial researches on the use of Ti3C2Tx based MXenes as electrochemical biosensors, but in contrast Ti2CTX based MXenes are rarely discussed due to their inherent resistance instability. However, the use of Ti2CTX based MXenes is still worth exploring as theoretical studies have shown that Ti2CTX possesses a signifcantly lower bandgap compared to many other MXenes structures.
Herein, this study examines the use of Ti2CTX MXene structures in a P-channel ionsensitive feld-efect transistor (P-ISFET) for the detection of Chlorpyrifos (Cpy). Compositing the PEDOT:PSS thin flm with delaminated Ti2CTX MXenes fakes with graphene oxide (GO) and bovine serum albumin (BSA) allows it to maintain its sheet resistance at around 100 kOhm for 3 days. Interestingly when using the composite thin flm, the minimum threshold voltage required to observe Cpy electroreduction is −0.1 V. This is much lower than that when using titanium dioxide (TiO2), which is −1.5 V. Composite thin flms containing Ti2CTX MXene are found to detect Cpy with higher sensitivity compared to thin flms without MXene. This is because the presence of Mxene in the PEDOT:PSS composite thin flms improves the surface area available for Cpy detection. This study highlights the potential of Ti2CTx
MXene-BSA composite as a promising 2D material for enzyme-free CPY detection. |
| format | Article |
| id | my.uthm.eprints-10152 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | en |
| publishDate | 2023 |
| publisher | Springer |
| record_format | eprints |
| spelling | my.uthm.eprints-101522023-10-17T07:40:29Z http://eprints.uthm.edu.my/10152/ The investigation of chlorpyrifos (Cpy) detection of PEDOT:PSS‑MXene(Ti2CTX)‑BSA‑GO composite using P‑ISFET reduction method Megat Hasnan, M. M. I. Lim, G. P. Nayan, N. Soon, C. F. Abd Halim, A. A. Ahmad, M. K. Said, S. M. Mohamed Ali, M. S. Noor, I. M. T Technology (General) MXenes are two-dimensional materials that are attractive for applications as sensors because they possess high conductivity, super hydrophilicity and high surface area. There already exist substantial researches on the use of Ti3C2Tx based MXenes as electrochemical biosensors, but in contrast Ti2CTX based MXenes are rarely discussed due to their inherent resistance instability. However, the use of Ti2CTX based MXenes is still worth exploring as theoretical studies have shown that Ti2CTX possesses a signifcantly lower bandgap compared to many other MXenes structures. Herein, this study examines the use of Ti2CTX MXene structures in a P-channel ionsensitive feld-efect transistor (P-ISFET) for the detection of Chlorpyrifos (Cpy). Compositing the PEDOT:PSS thin flm with delaminated Ti2CTX MXenes fakes with graphene oxide (GO) and bovine serum albumin (BSA) allows it to maintain its sheet resistance at around 100 kOhm for 3 days. Interestingly when using the composite thin flm, the minimum threshold voltage required to observe Cpy electroreduction is −0.1 V. This is much lower than that when using titanium dioxide (TiO2), which is −1.5 V. Composite thin flms containing Ti2CTX MXene are found to detect Cpy with higher sensitivity compared to thin flms without MXene. This is because the presence of Mxene in the PEDOT:PSS composite thin flms improves the surface area available for Cpy detection. This study highlights the potential of Ti2CTx MXene-BSA composite as a promising 2D material for enzyme-free CPY detection. Springer 2023 Article PeerReviewed text en http://eprints.uthm.edu.my/10152/1/J16311_aaf58b34af0553c2cd5d96ac6e4d20dc.pdf Megat Hasnan, M. M. I. and Lim, G. P. and Nayan, N. and Soon, C. F. and Abd Halim, A. A. and Ahmad, M. K. and Said, S. M. and Mohamed Ali, M. S. and Noor, I. M. (2023) The investigation of chlorpyrifos (Cpy) detection of PEDOT:PSS‑MXene(Ti2CTX)‑BSA‑GO composite using P‑ISFET reduction method. Polymer Bulletin. pp. 1-22. https://doi.org/10.1007/s00289-022-04105-5 |
| spellingShingle | T Technology (General) Megat Hasnan, M. M. I. Lim, G. P. Nayan, N. Soon, C. F. Abd Halim, A. A. Ahmad, M. K. Said, S. M. Mohamed Ali, M. S. Noor, I. M. The investigation of chlorpyrifos (Cpy) detection of PEDOT:PSS‑MXene(Ti2CTX)‑BSA‑GO composite using P‑ISFET reduction method |
| title | The investigation of chlorpyrifos (Cpy) detection of PEDOT:PSS‑MXene(Ti2CTX)‑BSA‑GO composite using P‑ISFET reduction method |
| title_full | The investigation of chlorpyrifos (Cpy) detection of PEDOT:PSS‑MXene(Ti2CTX)‑BSA‑GO composite using P‑ISFET reduction method |
| title_fullStr | The investigation of chlorpyrifos (Cpy) detection of PEDOT:PSS‑MXene(Ti2CTX)‑BSA‑GO composite using P‑ISFET reduction method |
| title_full_unstemmed | The investigation of chlorpyrifos (Cpy) detection of PEDOT:PSS‑MXene(Ti2CTX)‑BSA‑GO composite using P‑ISFET reduction method |
| title_short | The investigation of chlorpyrifos (Cpy) detection of PEDOT:PSS‑MXene(Ti2CTX)‑BSA‑GO composite using P‑ISFET reduction method |
| title_sort | investigation of chlorpyrifos (cpy) detection of pedot:pss‑mxene(ti2ctx)‑bsa‑go composite using p‑isfet reduction method |
| topic | T Technology (General) |
| url | http://eprints.uthm.edu.my/10152/1/J16311_aaf58b34af0553c2cd5d96ac6e4d20dc.pdf http://eprints.uthm.edu.my/10152/ https://doi.org/10.1007/s00289-022-04105-5 |
| url_provider | http://eprints.uthm.edu.my/ |