Electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid
A simple and sensitive sensor of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide modified glassy carbon electrode (PrGO/MnO2) was fabricated via cyclic voltammetry (CV) for simultaneous detection of uric acid (UA), dopamine (DA) and ascorbic acid (AA). The PrGO/MnO2 composi...
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| Format: | Article |
| Language: | English |
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Elsevier
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/72546/ http://psasir.upm.edu.my/id/eprint/72546/1/Electrodeposition%20of%20poly.pdf |
| _version_ | 1848857144867160064 |
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| author | Tukimin, Nurulkhalilah Abdullah, Jaafar Sulaiman, Yusran |
| author_facet | Tukimin, Nurulkhalilah Abdullah, Jaafar Sulaiman, Yusran |
| author_sort | Tukimin, Nurulkhalilah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A simple and sensitive sensor of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide modified glassy carbon electrode (PrGO/MnO2) was fabricated via cyclic voltammetry (CV) for simultaneous detection of uric acid (UA), dopamine (DA) and ascorbic acid (AA). The PrGO/MnO2 composite film possessed excellent electrocatalytic rate and high selectivity towards the oxidation of UA, DA and AA in 0.1 M PBS (pH 6.0). The peak potential separation (∆Ep) of AA-DA, AA-UA and DA-UA were 166, 312 and 146 mV, respectively. The detection limits of 1.00, 0.02 and 0.05 μM with a linear response of 1–800, 0.03–45 and 0.3–80 μM were obtained for AA, DA and UA, respectively. This sensor also showed an excellent stability (reproducibility and repeatability). |
| first_indexed | 2025-11-15T11:52:53Z |
| format | Article |
| id | upm-72546 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:52:53Z |
| publishDate | 2018 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-725462020-10-23T09:41:44Z http://psasir.upm.edu.my/id/eprint/72546/ Electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid Tukimin, Nurulkhalilah Abdullah, Jaafar Sulaiman, Yusran A simple and sensitive sensor of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide modified glassy carbon electrode (PrGO/MnO2) was fabricated via cyclic voltammetry (CV) for simultaneous detection of uric acid (UA), dopamine (DA) and ascorbic acid (AA). The PrGO/MnO2 composite film possessed excellent electrocatalytic rate and high selectivity towards the oxidation of UA, DA and AA in 0.1 M PBS (pH 6.0). The peak potential separation (∆Ep) of AA-DA, AA-UA and DA-UA were 166, 312 and 146 mV, respectively. The detection limits of 1.00, 0.02 and 0.05 μM with a linear response of 1–800, 0.03–45 and 0.3–80 μM were obtained for AA, DA and UA, respectively. This sensor also showed an excellent stability (reproducibility and repeatability). Elsevier 2018-07 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72546/1/Electrodeposition%20of%20poly.pdf Tukimin, Nurulkhalilah and Abdullah, Jaafar and Sulaiman, Yusran (2018) Electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid. Journal of Electroanalytical Chemistry, 820. 74 - 81. ISSN 1572-6657 https://www.sciencedirect.com/science/article/abs/pii/S1572665718303254 10.1016/j.jelechem.2018.04.065 |
| spellingShingle | Tukimin, Nurulkhalilah Abdullah, Jaafar Sulaiman, Yusran Electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid |
| title | Electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid |
| title_full | Electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid |
| title_fullStr | Electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid |
| title_full_unstemmed | Electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid |
| title_short | Electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid |
| title_sort | electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid |
| url | http://psasir.upm.edu.my/id/eprint/72546/ http://psasir.upm.edu.my/id/eprint/72546/ http://psasir.upm.edu.my/id/eprint/72546/ http://psasir.upm.edu.my/id/eprint/72546/1/Electrodeposition%20of%20poly.pdf |