Highly active bidirectional electron transfer by a self-assembled electroactive reduced-graphene-oxide-hybridized biofilm
Low extracellular electron transfer performance is often a bottleneck in developing high-performance bioelectrochemical systems. Herein, we show that the self-assembly of graphene oxide and Shewanella oneidensis MR-1 formed an electroactive, reduced-graphene-oxide-hybridized, three-dimensional macro...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/99933 http://hdl.handle.net/10220/19648 |
| _version_ | 1811695636558381056 |
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| author | Yong, Yang-Chun Yu, Yang-Yang Zhang, Xinhai Song, Hao |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Yong, Yang-Chun Yu, Yang-Yang Zhang, Xinhai Song, Hao |
| author_sort | Yong, Yang-Chun |
| collection | NTU |
| description | Low extracellular electron transfer performance is often a bottleneck in developing high-performance bioelectrochemical systems. Herein, we show that the self-assembly of graphene oxide and Shewanella oneidensis MR-1 formed an electroactive, reduced-graphene-oxide-hybridized, three-dimensional macroporous biofilm, which enabled highly efficient bidirectional electron transfers between Shewanella and electrodes owing to high biomass incorporation and enhanced direct contact-based extracellular electron transfer. This 3D electroactive biofilm delivered a 25-fold increase in the outward current (oxidation current, electron flux from bacteria to electrodes) and 74-fold increase in the inward current (reduction current, electron flux from electrodes to bacteria) over that of the naturally occurring biofilms. |
| first_indexed | 2024-10-01T07:26:37Z |
| format | Journal Article |
| id | ntu-10356/99933 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:26:37Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/999332020-03-07T11:40:19Z Highly active bidirectional electron transfer by a self-assembled electroactive reduced-graphene-oxide-hybridized biofilm Yong, Yang-Chun Yu, Yang-Yang Zhang, Xinhai Song, Hao School of Chemical and Biomedical Engineering DRNTU::Engineering::Materials::Microelectronics and semiconductor materials::Thin films DRNTU::Engineering::Chemical engineering::Biochemical engineering Low extracellular electron transfer performance is often a bottleneck in developing high-performance bioelectrochemical systems. Herein, we show that the self-assembly of graphene oxide and Shewanella oneidensis MR-1 formed an electroactive, reduced-graphene-oxide-hybridized, three-dimensional macroporous biofilm, which enabled highly efficient bidirectional electron transfers between Shewanella and electrodes owing to high biomass incorporation and enhanced direct contact-based extracellular electron transfer. This 3D electroactive biofilm delivered a 25-fold increase in the outward current (oxidation current, electron flux from bacteria to electrodes) and 74-fold increase in the inward current (reduction current, electron flux from electrodes to bacteria) over that of the naturally occurring biofilms. 2014-06-11T02:56:59Z 2019-12-06T20:13:46Z 2014-06-11T02:56:59Z 2019-12-06T20:13:46Z 2014 2014 Journal Article Yong, Y. C., Yu, Y. Y., Zhang, X., & Song, H. (2014). Highly Active Bidirectional Electron Transfer by a Self-Assembled Electroactive Reduced-Graphene-Oxide-Hybridized Biofilm. Angewandte Chemie International Edition, 53(17), 4480-4483. 1433-7851 https://hdl.handle.net/10356/99933 http://hdl.handle.net/10220/19648 10.1002/anie.201400463 en Angewandte chemie international edition © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | DRNTU::Engineering::Materials::Microelectronics and semiconductor materials::Thin films DRNTU::Engineering::Chemical engineering::Biochemical engineering Yong, Yang-Chun Yu, Yang-Yang Zhang, Xinhai Song, Hao Highly active bidirectional electron transfer by a self-assembled electroactive reduced-graphene-oxide-hybridized biofilm |
| title | Highly active bidirectional electron transfer by a self-assembled electroactive reduced-graphene-oxide-hybridized biofilm |
| title_full | Highly active bidirectional electron transfer by a self-assembled electroactive reduced-graphene-oxide-hybridized biofilm |
| title_fullStr | Highly active bidirectional electron transfer by a self-assembled electroactive reduced-graphene-oxide-hybridized biofilm |
| title_full_unstemmed | Highly active bidirectional electron transfer by a self-assembled electroactive reduced-graphene-oxide-hybridized biofilm |
| title_short | Highly active bidirectional electron transfer by a self-assembled electroactive reduced-graphene-oxide-hybridized biofilm |
| title_sort | highly active bidirectional electron transfer by a self assembled electroactive reduced graphene oxide hybridized biofilm |
| topic | DRNTU::Engineering::Materials::Microelectronics and semiconductor materials::Thin films DRNTU::Engineering::Chemical engineering::Biochemical engineering |
| url | https://hdl.handle.net/10356/99933 http://hdl.handle.net/10220/19648 |
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