Organic Microbial Electrochemical Transistor Monitoring Extracellular Electron Transfer
Abstract: Extracellular electron transfer (EET) denotes the process of microbial respiration with electron transfer to extracellular acceptors and has been exploited in a range of microbial electrochemical systems (MESs). To further understand EET and to optimize the performance of MESs, a better understanding of the dynamics at the microscale is needed. However, the real‐time monitoring of EET at high spatiotemporal resolution would require sophisticated signal amplification. To amplify local EET signals, a miniaturized bioelectronic device, the so‐called organic microbial electrochemical transistor (OMECT), is developed, which includes Shewanella oneidensis MR‐1 integrated onto organic electrochemical transistors comprising poly (3,4‐ethylenedioxythiophene):poly (styrenesulfonate) (PEDOT:PSS) combined with poly (vinyl alcohol) (PVA). Bacteria are attached to the gate of the transistor by a chronoamperometric method and the successful attachment is confirmed by fluorescence microscopy. Monitoring EET with the OMECT configuration is achieved due to the inherent amplification of the transistor, revealing fast time‐responses to lactate. The limits of detection when using microfabricated gates as charge collectors are also investigated. The work is a first step toward understanding and monitoring EET in highly confined spaces via microfabricated organic electronic devices, and it can be of importance to study exoelectrogens in microenvironments, such as those of the human microbiome.
- Location
-
Deutsche Nationalbibliothek Frankfurt am Main
- Extent
-
Online-Ressource
- Language
-
Englisch
- Bibliographic citation
-
Organic Microbial Electrochemical Transistor Monitoring Extracellular Electron Transfer ; volume:7 ; number:15 ; year:2020 ; extent:8
Advanced science ; 7, Heft 15 (2020) (gesamt 8)
- Creator
-
Méhes, Gábor
Roy, Arghyamalya
Strakosas, Xenofon
Berggren, Magnus
Stavrinidou, Eleni
Simon, Daniel T.
- DOI
-
10.1002/advs.202000641
- URN
-
urn:nbn:de:101:1-2022062707261519734703
- Rights
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
-
15.08.2025, 7:35 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Méhes, Gábor
- Roy, Arghyamalya
- Strakosas, Xenofon
- Berggren, Magnus
- Stavrinidou, Eleni
- Simon, Daniel T.
Other Objects (12)
An electrochemical thermal transistor
Thermodynamics of organic electrochemical transistors
Solid‐State Electrochemical Thermal Transistors
Processing of organic electrochemical transistors
Thermodynamics of organic electrochemical transistors
Electrochemical performance and microbial community profiles in microbial fuel cells in relation to electron transfer mechanisms
Organic Electrochemical Transistors: From Lithography to Large‐Scale Printing (Adv. Electron. Mater. 3/2025)
Organic Electrochemical Transistor for Biological Applications
Interdigitated organic electrochemical transistors for biosensing
Fully 3D-printed organic electrochemical transistors
A Biomimetic Evolvable Organic Electrochemical Transistor
Organic Electrochemical Transistors for Biomarker Detections
An electrochemical thermal transistor
Thermodynamics of organic electrochemical transistors
Solid‐State Electrochemical Thermal Transistors
Processing of organic electrochemical transistors
Thermodynamics of organic electrochemical transistors
Electrochemical performance and microbial community profiles in microbial fuel cells in relation to electron transfer mechanisms
Organic Electrochemical Transistors: From Lithography to Large‐Scale Printing (Adv. Electron. Mater. 3/2025)
Organic Electrochemical Transistor for Biological Applications
Interdigitated organic electrochemical transistors for biosensing
Fully 3D-printed organic electrochemical transistors
A Biomimetic Evolvable Organic Electrochemical Transistor
Organic Electrochemical Transistors for Biomarker Detections
An electrochemical thermal transistor
Thermodynamics of organic electrochemical transistors
Solid‐State Electrochemical Thermal Transistors
Processing of organic electrochemical transistors
Thermodynamics of organic electrochemical transistors
Electrochemical performance and microbial community profiles in microbial fuel cells in relation to electron transfer mechanisms
Organic Electrochemical Transistors: From Lithography to Large‐Scale Printing (Adv. Electron. Mater. 3/2025)
Organic Electrochemical Transistor for Biological Applications
Interdigitated organic electrochemical transistors for biosensing
Fully 3D-printed organic electrochemical transistors
A Biomimetic Evolvable Organic Electrochemical Transistor