Towards microbial biofuel cells: Improvement of charge transfer by self-modification of microoganisms with conducting polymer – Polypyrrole

Kisieliute, Aura; Popov, Anton; Apetrei, Roxana-Mihaela; Cârâc, Geta; Morkvėnaitė-Vilkončienė, Inga; Ramanavičienė, Almira

doi:10.1016/j.cej.2018.09.026

Cited by 76 publications

(49 citation statements)

References 45 publications

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“…The bottleneck for living photovoltaics is the unfavorable charge transfer efficiency between the microbe and the electrode;10 photosynthetic electrons generated from the thylakoid membrane within the cell show limited mobility in traversing the insulating outer membrane of the cell 3–10. Device efficiency can be improved with the aid of soluble mediators capable of traversing the outer membrane.…”

Section: Introductionmentioning

confidence: 99%

“…For example, microbes can be bioengineered to produce their own mediators for improved indirect electron transfer13 or to express electronic conduits for improved direct electron transfer in the absence of exogenous mediators 14. The bioengineering of exoelectrogenic, photosynthetic cells has only recently emerged as a viable area of research3–15 as studies continue to identify new naturally occurring exoelectrogenic microbes and to elucidate their electron transfer mechanisms 16–18. However, even in absence of added mediators and bioengineering, bioelectricity generation from wildtype microbes can still be reasonably improved through appropriate electrode design.…”

Section: Introductionmentioning

confidence: 99%

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Design of Optimized PEDOT‐Based Electrodes for Enhancing Performance of Living Photovoltaics Based on Phototropic Bacteria

Reggente

Politi

Antonucci

et al. 2020

Adv Materials Technologies

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Living photovoltaics represent a growing class of microbial devices that are based on whole cell–electrode interactions. The limited charge transfer at the cell–electrode interface represents a significant bottleneck in realizing an efficient technology. This study focuses on the development of poly(3,4‐ethylenedioxythiophene) (PEDOT)‐based electrodes that are electrosynthesized in the presence of a sodium dodecyl sulphate (SDS) dopant. Potentiodynamic and potentiostatic electrochemical techniques, as well as scanning electron microscopy (SEM), atomic force microscopy (AFM), Raman spectroscopy, and theoretical modelling of the electropolymerization transient, are employed to create and characterize PEDOT electrodes under various conditions. The electrodes are able to capture photosynthetically derived current under multiple light–dark cycles when interfaced with Synechocystis sp. PCC 6803. In the presence of the Synechocystis, the PEDOT electrodes show a sixfold and twofold enhancement over conventional graphite electrodes for both mediatorless and K3Fe(CN)6‐mediated conditions, respectively. The ability of these electrodes to enhance extracted photocurrent for both direct and indirect electron transfer mechanisms provides a versatile platform for improving various microbial devices.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of Optimized PEDOT‐Based Electrodes for Enhancing Performance of Living Photovoltaics Based on Phototropic Bacteria

Reggente

Politi

Antonucci

et al. 2020

Adv Materials Technologies

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“…In another research, we applied living cell induced redox cycling of [Fe(CN) 6 ] 4− /[Fe(CN) 6 ] 3− , which enabled the formation of polypyrrole within the yeast cell wall [ 45 ]. We demonstrated that these kinds of Ppy formation redox processes, which are involved in metabolism occurring in living cells, can be adapted even without any redox mediators [ 46 ]. Our studies based on the nonradioactive isotope method illustrated that Ppy formed during microbial polymerization is deposited mainly within the cell wall and in the space between the cell wall and cell membrane [ 47 ].…”

Section: Formation Of Conducting Polymer-based Sensing Structuresmentioning

confidence: 99%

“…During this process, sufficient conductivity of some conducting polymers was achieved, which enables the enhancement of charge transfer from some microorganisms such as Rhizoctania sp. and Aspergillus niger [ 46 , 48 , 49 ], and is useful for the development of biofuel cells [ 46 ]. Some other authors also proved this approach and applied it for the modification of several different bacteria, namely, for Streptococcus thermophilus , Ochrobacterium anthropic , Shewanella oneidensis , and Escherichia coli [ 50 ], which exhibited both sufficient viability and advanced cell wall conductivity.…”

Section: Formation Of Conducting Polymer-based Sensing Structuresmentioning

confidence: 99%

Conducting Polymers in the Design of Biosensors and Biofuel Cells

2020

Self Cite

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Fast and sensitive determination of biologically active compounds is very important in biomedical diagnostics, the food and beverage industry, and environmental analysis. In this review, the most promising directions in analytical application of conducting polymers (CPs) are outlined. Up to now polyaniline, polypyrrole, polythiophene, and poly(3,4-ethylenedioxythiophene) are the most frequently used CPs in the design of sensors and biosensors; therefore, in this review, main attention is paid to these conducting polymers. The most popular polymerization methods applied for the formation of conducting polymer layers are discussed. The applicability of polypyrrole-based functional layers in the design of electrochemical biosensors and biofuel cells is highlighted. Some signal transduction mechanisms in CP-based sensors and biosensors are discussed. Biocompatibility-related aspects of some conducting polymers are overviewed and some insights into the application of CP-based coatings for the design of implantable sensors and biofuel cells are addressed. New trends and perspectives in the development of sensors based on CPs and their composites with other materials are discussed.

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“…Bio-electroactive fuel cells are described as fuel cells based on enzymatic catalysis for a certain part of their activity [1,2]. Basically, Bio-electroactive fuel cells are devices that can convert chemicals directly into electrical energy through electrochemical reactions involving biochemical stages and the bio-electroactive fuel cell may be of micro size because it uses chemical energy sources [3,4,5].…”

Section: Introductionmentioning

confidence: 99%

Bio-electroactive fuel cells and their applications

Çetinkaya

Kuzu

Demi̇r

2020

Environmental Research and Technology

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Bio-electroactive fuel cells are systems that produce useful products from renewable sources without causing environmental pollution and treating waste. In this study, general design properties, operation mechanisms, application areas, and historical advancement of the bio-electroactive fuel cell was reviewed. Electricity generating microbial fuel cells offer new opportunities as with hydrogen and methane-producing microbial electrolysis cells due to their attractive variety of electroactive microorganisms and operating situations. This article provides an up-todate review for Bio-electroactive fuel cells and outlines instructions for future studies.

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Towards microbial biofuel cells: Improvement of charge transfer by self-modification of microoganisms with conducting polymer – Polypyrrole

Cited by 76 publications

References 45 publications

Design of Optimized PEDOT‐Based Electrodes for Enhancing Performance of Living Photovoltaics Based on Phototropic Bacteria

Design of Optimized PEDOT‐Based Electrodes for Enhancing Performance of Living Photovoltaics Based on Phototropic Bacteria

Conducting Polymers in the Design of Biosensors and Biofuel Cells

Bio-electroactive fuel cells and their applications

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