<i>Pseudomonas fragi</i>/graphene–gold hybrid nanomaterial bioanode based microbial fuel cell

Avcı, Okan; Büyüksünetçi, Yudum Tepeli; Erden, Emre; Tımur, Suna; Anık, Ülkü

doi:10.1039/d1nj01108a

Cited by 2 publications

(5 citation statements)

References 34 publications

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“…As an alternative energy source, fuel cells including biofuel cells (BFC) play an important part for the future energy demand [1] . As a type of BFC, microbial fuel cells (MFC) can be described as energy generators where microbes or bacteria are used as catalysts for the main bioelectrochemical reaction [2] . Usually these bacteria are placed at the surface of bioanode and utilized for the oxidation of proper substrate [3] .…”

Section: Introductionmentioning

confidence: 99%

“…Usually these bacteria are placed at the surface of bioanode and utilized for the oxidation of proper substrate [3] . Then this microorganism loaded bioanode is combined with a suitable cathode or biocathode where reduction takes place via electrons that are obtained at bioanode part [2,4] . Because of occurred oxidation and reduction reactions, a current is produced through the MFC systems.…”

Section: Introductionmentioning

confidence: 99%

“…[1] As a type of BFC, microbial fuel cells (MFC) can be described as energy generators where microbes or bacteria are used as catalysts for the main bioelectrochemical reaction. [2] Usually these bacteria are placed at the surface of bioanode and utilized for the oxidation of proper substrate. [3] Then this microorganism loaded bioanode is combined with a suitable cathode or biocathode where reduction takes place via electrons that are obtained at bioanode part.…”

Section: Introductionmentioning

confidence: 99%

“…[3] Then this microorganism loaded bioanode is combined with a suitable cathode or biocathode where reduction takes place via electrons that are obtained at bioanode part. [2,4] Because of occurred oxidation and reduction reactions, a current is produced through the MFC systems. In order to increase this current value, hence efficiency of developed system, certain parameters including the performance of bioanode are very important.…”

Section: Introductionmentioning

confidence: 99%

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Development of a Highly Boron Tolerant Pseudomonas sp.−Fe‐MOF Bioanode

Avcı,

Sezer Kürkçü,

Çöl

et al. 2023

ChemistrySelect

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In this work, a bioanode which was based on carbon felt electrode (CFE) that contained highly boron tolerant bacterium Pseudomonas sp. isolated from a boron mine (Pseudomonas isolate BC4B) and iron‐metal organic framework (Fe‐MOF) was developed. To the best of our knowledge, this is the first study in which a highly boron tolerant bacterium, Pseudomonas isolate BC4B was investigated as a bioanode material. It was observed that Fe‐MOF increased the signal significantly by behaving as a catalyst. During the study, the optimization of Fe‐MOF amount, bacteria amount and substrate concentration were done. Also, the effect of different substrate amounts on the bioanode electrochemical signal was investigated. Consequently, the highest current density value was obtained with 5 mM substrate amount. Meanwhile, in order to investigate the reproducibility of developed bioanode, relative standard deviation value was calculated and found as 1.39 % (n : 3) for 4 mM concentration of H3BO3.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Development of a Highly Boron Tolerant Pseudomonas sp.−Fe‐MOF Bioanode

Avcı,

Sezer Kürkçü,

Çöl

et al. 2023

ChemistrySelect

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“…After heterologous expression by P. putida KT2240, lactose content increased by 486.1%, which laid the foundation for the further use of metabolic engineering to increase the production of lactobionic acid ( Wu J. et al, 2022 ). Avcı used P. fragi as a biocatalyst, combined with graphene-Au/CFE, developed and optimized the electrode material, and prepared a microbial fuel cell ( Avcı et al, 2021 ). Awolope discovered the potential of P. fragi A13BB as a rhizosphere microorganism through whole genome sequencing analysis, proving its value in agricultural production ( Awolope et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Mining of key genes for cold adaptation from Pseudomonas fragi D12 and analysis of its cold-adaptation mechanism

Bao

Xin

et al. 2023

Front. Microbiol.

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The psychrotroph Pseudomonas fragi D12, which grew strongly under low temperatures, was screened from tundra soil collected from the permanent alpine zone on Changbai Mountain. To mine the genes critical for cold tolerance and to investigate the cold-adaptation mechanism, whole-genome sequencing, comparative genomic analysis, and transcriptome analysis were performed with P. fragi. A total of 124 potential cold adaptation genes were identified, including nineteen unique cold-adaptive genes were detected in the genome of P. fragi D12. Three unique genes associated with pili protein were significantly upregulated at different degrees of low temperature, which may be the key to the strong low-temperature adaptability of P. fragi D12. Meanwhile, we were pleasantly surprised to find that Pseudomonas fragi D12 exhibited different cold-adaptation mechanisms under different temperature changes. When the temperature declined from 30°C to 15°C, the response included maintenance of the fluidity of cell membranes, increased production of extracellular polymers, elevation in the content of compatibility solutes, and reduction in the content of reactive oxygen species, thereby providing a stable metabolic environment. When the temperature decreased from 15°C to 4°C, the response mainly included increases in the expression of molecular chaperones and transcription factors, enabling the bacteria to restore normal transcription and translation. The response mechanism of P. fragi D12 to low-temperature exposure is discussed. The results provide new ideas for the cold-adaptation mechanism of cold-tolerant microorganisms.

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Pseudomonas fragi/graphene–gold hybrid nanomaterial bioanode based microbial fuel cell

Abstract: A Pseudomonas fragi (P.fragi) and Graphene-gold hybrid nanomaterial included carbon felt electrode (Graphene-Au/CFE) bioanode was developed and optimized. Then this bioanode was combined with a platinum cathode and a single...

Cited by 2 publications

References 34 publications

Development of a Highly Boron Tolerant Pseudomonas sp.−Fe‐MOF Bioanode

Development of a Highly Boron Tolerant Pseudomonas sp.−Fe‐MOF Bioanode

Mining of key genes for cold adaptation from Pseudomonas fragi D12 and analysis of its cold-adaptation mechanism

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