Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing
Electron-transfer kinetics and impedance at the electrode-solution interface affect biosensor performance. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy(EIS) are used to understand the reversibility of electron transfer and impedance at the electrode-solution interface, respect...
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| Format: | Proceeding Paper |
| Language: | English English English |
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Institute of Electrical and Electronics Engineers Inc.
2019
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| Online Access: | http://irep.iium.edu.my/69484/ http://irep.iium.edu.my/69484/1/69484_Cyclic%20voltammetry%20and%20electrochemical.pdf http://irep.iium.edu.my/69484/2/69484_Cyclic%20voltammetry%20and%20electrochemical_SCOPUS.pdf http://irep.iium.edu.my/69484/3/69484_Cyclic%20voltammetry%20and%20electrochemical_WOS.pdf |
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| author | Ismail, Nur Alya Batrisya Abd. Wahab, Mohd. Firdaus Wan Salim, Wan Wardatul Amani |
| author_facet | Ismail, Nur Alya Batrisya Abd. Wahab, Mohd. Firdaus Wan Salim, Wan Wardatul Amani |
| author_sort | Ismail, Nur Alya Batrisya |
| building | IIUM Repository |
| collection | Online Access |
| description | Electron-transfer kinetics and impedance at the
electrode-solution interface affect biosensor performance. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy(EIS) are used to understand the reversibility of electron transfer and impedance at the electrode-solution interface, respectively.
Effective surface areas calculated based on the Randles-Sevcik equation for a bare screen-printed carbon electrode (SPCE), a graphene oxide (GO)-poly (3,4-ethylenedioxythiophene):polystyrenesulfonic acid
(PEDOT:PSS)–modified electrode (GO-PEDOT:PSS/SPCE), a
partially reduced graphene oxide-PEDOT:PSS–modified
electrode (prGO-PEDOT:PSS/SPCE), and glucose oxidase (GOx)
crosslinked with glutaraldehyde on partially reduced graphene oxide-PEDOT:PSS–modified electrodes (GOx/prGOPEDOT:PSS/SPCE) are 0.0717 mm2, 0.0794 mm2, 0.219 mm2, and 0.160 mm2, respectively. Nyquist plots from EIS show charge transfer resistance (Rct) of 430 μΩ, 148.2 Ω, 200.7 Ω, and 209.6 Ω, respectively, for the same electrodes. The high effective surface area and the Rct of prGO-PEDOT:PSS/SPCE indicate that the prGO-PEDOT:PSS composite is suitable as a transducer layer for glucose biosensing. |
| first_indexed | 2025-11-14T17:19:56Z |
| format | Proceeding Paper |
| id | iium-69484 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-14T17:19:56Z |
| publishDate | 2019 |
| publisher | Institute of Electrical and Electronics Engineers Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-694842019-06-13T08:34:21Z http://irep.iium.edu.my/69484/ Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing Ismail, Nur Alya Batrisya Abd. Wahab, Mohd. Firdaus Wan Salim, Wan Wardatul Amani Q Science (General) T Technology (General) TA164 Bioengineering Electron-transfer kinetics and impedance at the electrode-solution interface affect biosensor performance. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy(EIS) are used to understand the reversibility of electron transfer and impedance at the electrode-solution interface, respectively. Effective surface areas calculated based on the Randles-Sevcik equation for a bare screen-printed carbon electrode (SPCE), a graphene oxide (GO)-poly (3,4-ethylenedioxythiophene):polystyrenesulfonic acid (PEDOT:PSS)–modified electrode (GO-PEDOT:PSS/SPCE), a partially reduced graphene oxide-PEDOT:PSS–modified electrode (prGO-PEDOT:PSS/SPCE), and glucose oxidase (GOx) crosslinked with glutaraldehyde on partially reduced graphene oxide-PEDOT:PSS–modified electrodes (GOx/prGOPEDOT:PSS/SPCE) are 0.0717 mm2, 0.0794 mm2, 0.219 mm2, and 0.160 mm2, respectively. Nyquist plots from EIS show charge transfer resistance (Rct) of 430 μΩ, 148.2 Ω, 200.7 Ω, and 209.6 Ω, respectively, for the same electrodes. The high effective surface area and the Rct of prGO-PEDOT:PSS/SPCE indicate that the prGO-PEDOT:PSS composite is suitable as a transducer layer for glucose biosensing. Institute of Electrical and Electronics Engineers Inc. 2019-01-24 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/69484/1/69484_Cyclic%20voltammetry%20and%20electrochemical.pdf application/pdf en http://irep.iium.edu.my/69484/2/69484_Cyclic%20voltammetry%20and%20electrochemical_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/69484/3/69484_Cyclic%20voltammetry%20and%20electrochemical_WOS.pdf Ismail, Nur Alya Batrisya and Abd. Wahab, Mohd. Firdaus and Wan Salim, Wan Wardatul Amani (2019) Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing. In: 2018 IEEE EMBS Conference on Biomedical Engineering and Sciences )IECBES 2018), 3rd-6th December 2018, Kuching, Sarawak. https://ieeexplore.ieee.org/document/8626618 10.1109/IECBES.2018.8626618 |
| spellingShingle | Q Science (General) T Technology (General) TA164 Bioengineering Ismail, Nur Alya Batrisya Abd. Wahab, Mohd. Firdaus Wan Salim, Wan Wardatul Amani Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing |
| title | Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing |
| title_full | Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing |
| title_fullStr | Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing |
| title_full_unstemmed | Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing |
| title_short | Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing |
| title_sort | cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - pedot:pss transducer for biochemical sensing |
| topic | Q Science (General) T Technology (General) TA164 Bioengineering |
| url | http://irep.iium.edu.my/69484/ http://irep.iium.edu.my/69484/ http://irep.iium.edu.my/69484/ http://irep.iium.edu.my/69484/1/69484_Cyclic%20voltammetry%20and%20electrochemical.pdf http://irep.iium.edu.my/69484/2/69484_Cyclic%20voltammetry%20and%20electrochemical_SCOPUS.pdf http://irep.iium.edu.my/69484/3/69484_Cyclic%20voltammetry%20and%20electrochemical_WOS.pdf |