The direct electrocatalysis of phenazine-1-carboxylic acid excreted by Pseudomonas alcaliphila under alkaline condition in microbial fuel cells

Zhang, Tingtao; Zhang, Lixia; Su, Wentao; Gao, Peng; Li, Daping; He, Xiaohong; Ya-shu, Zhang

doi:10.1016/j.biortech.2011.04.093

Cited by 70 publications

(35 citation statements)

References 23 publications

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“…The resistor voltage was continuously recorded as in a previous study [27]. To obtain the polarization and power density curves of MFCs, the external resistors were gradually decreased from 5,000 to 10 Ω after a steady OCV was achieved.…”

Section: Measurements and Calculationsmentioning

confidence: 99%

Removal of Sulfide and Production of Methane from Carbon Dioxide in Microbial Fuel Cells–Microbial Electrolysis Cell (MFCs–MEC) Coupled System

Jiang

2014

Appl Biochem Biotechnol

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Removal of sulfide and production of methane from carbon dioxide in microbial electrolysis cells (MECs) at the applied voltage of 0.7 V was achieved using sulfide and organic compound as electron donors. The removal rate of sulfide was 72 % and the Faraday efficiency of methane formation was 57 % within 70 h of operation. Microbial fuel cell (MFCs) can be connected in series to supply power and drive the reaction in MECs. Removal of sulfide and production of methane from carbon dioxide in MFCs-MEC coupled system was achieved. The sulfide removal rates were 62.5, 60.4, and 57.7 %, respectively, in the three anode compartments. Methane accumulated at a rate of 0.354 mL h −1 L −1 and the Faraday efficiency was 51 %. Microbial characterization revealed that the biocathode of MEC was dominated by relatives of Methanobacterium palustre, Methanobrevibacter arboriphilus, and Methanocorpusculum parvum. This technology has a potential for wastewater treatments and biofuel production from carbon dioxide.

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Section: Measurements and Calculationsmentioning

confidence: 99%

Removal of Sulfide and Production of Methane from Carbon Dioxide in Microbial Fuel Cells–Microbial Electrolysis Cell (MFCs–MEC) Coupled System

Jiang

2014

Appl Biochem Biotechnol

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“…PCA‐producing bacterial species have been regarded as effective biocontrol agents in agricultural applications, since they exhibit antagonism against diverse phytopathogenic fungi including the genus Aspergillus, Phytophthora, Alternaria, Rhizoctonia, Sclerotium, Colletoricum , Seiridium, Fusarium and Verticillium 3, 9–12, 17, 22. The antagonism is thought to be due to the redox behavior of PCA 1 which is a property that has also been exploited in the microbial fuel cells 4–5. Phenazine‐excreting bacteria in general, and Pseudomonas aeruginosa in particular have become popular model organisms for the study of quorum sensing and biofilm formation, two of the most active areas of research in microbiology 23–25.…”

Section: Introductionmentioning

confidence: 99%

Transfer Hydrogenation of Ketones Catalyzed by Surface‐Active Ruthenium and Rhodium Complexes in Water

Kalsin

Peganova

Novikov

et al. 2013

Chemistry A European J

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An improved, high-yield, one-pot synthetic procedure for water-soluble ligands functionalized with trialkyl ammonium side groups H2 N(CH2 )2 NHSO2 -p-C6 H4 CH2 [NMe2 (Cn H2n+1 )](+) ([HL(n) ](+) ; n=8, 16) was developed. The corresponding new surface-active complexes [(p-cymene)RuCl(L(n) )] and [Cp*RhCl(L(n) )] (Cp*=η(5) -C5 Me5 ) were prepared and characterized. For n=16 micelles are formed in water at concentrations as low as 0.6 mM, as demonstrated by surface-tension measurements. The complexes were used for catalytic transfer hydrogenation of ketones with formate in water. Highly active catalyst systems were obtained in the case of complexes bearing C16 tails due to their ability to be adsorbed at the water/substrate interface. The scope of these catalyst systems in aqueous solutions was extended from partially water soluble aryl alkyl ketones (acetophenone, butyrophenone) to hydrophobic dialkyl ketones (2-dodecanone).

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“…16 Phenazines are used as precursor for the preparation of dyes which find application as photosensitive materials solar cells. 17,18 In addition to these applications, phenazines can also be utilized as components of organic light emitting devices.…”

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pH Dependent Electrochemical Characterization, Computational Studies and Evaluation of Thermodynamic, Kinetic and Analytical Parameters of Two Phenazines

Shah

Zaid

Shah

et al. 2014

J. Electrochem. Soc.

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The electrochemical response of two biologically important phenazine derivatives was examined by using cyclic, differential pulse and square wave voltammetry in a wide pH range of 2.0 -12.0. Cyclic voltammetry was employed for the determination of heterogeneous electron transfer rate constant and diffusion coefficient of the analytes. The value of electron transfer rate constant was used for evaluation of Gibbs free energy, enthalpy and entropy changes of redox reactions of the compounds. Differential pulse voltammetry was used for the determination of number of protons and electrons involved in the redox processes. Limits of detection and quantification were assessed by square wave voltammetry. The detailed pH dependent redox mechanisms of the compounds were proposed on the basis of experimental results which were further supported by theoretical calculations. These redox mechanistic pathways are expected to play a key role in understanding the necessary aspects of structure-activity relationships and exploring the hidden routes by which this class of compounds exert its biochemical actions. Phenazines have broad range applications in biology and chemistry.1 This class constitutes a large group of nitrogen containing heterocyclic compounds, the members of which differ in their chemical and physical properties on the basis of type and position of functional groups present. Naturally, phenazines are produced by limited genera of bacteria including Pseudomonas, Burkholderia and Brevibacterium.2 Starting from different parent materials, phenazines can be synthesized by various reactions including oxidative condensation, electrochemical reduction, reductive cyclization and photochemical reactions.From the last 50 years, phenazines are the subject of extensive research investigations because of their broad range applications in pharmaceutical and clinical research.3 Such compounds have been reported for their wide variety of biological activities such as antitumor, anti-parasitic and antibiotic activities. Benzo [a] phenazine acts as efficient DNA intercalating ligand with antitumor activity in leukaemia and solid tumors. 4 1-Hydroxyphenazine has been reported to have promising antifungal activity against various microbes such as aspergillus fumigatus and candida albicans.5 Macrolactone synthesized from benzo [a] phenazine shows good activity against mycobacterium tuberculosis. 6 In general, natural and synthetic phenazines find useful applications against malaria 7 and hepatitis C viral replication. 8The biological activity of phenazines is due to their redox reactions leading to the formation of toxic radicals. 9 Different functional groups attached to phenazine determine their redox potential and solubility. The redox behavior and concomitant modulation of biological activities of phenazines by changing the nature and position of substituents attached to their aromatic rings have been reported by several research groups.10-12 Phenazines can alter cellular redox states and act as transporters of electrons to altern...

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The direct electrocatalysis of phenazine-1-carboxylic acid excreted by Pseudomonas alcaliphila under alkaline condition in microbial fuel cells

Cited by 70 publications

References 23 publications

Removal of Sulfide and Production of Methane from Carbon Dioxide in Microbial Fuel Cells–Microbial Electrolysis Cell (MFCs–MEC) Coupled System

Removal of Sulfide and Production of Methane from Carbon Dioxide in Microbial Fuel Cells–Microbial Electrolysis Cell (MFCs–MEC) Coupled System

Transfer Hydrogenation of Ketones Catalyzed by Surface‐Active Ruthenium and Rhodium Complexes in Water

pH Dependent Electrochemical Characterization, Computational Studies and Evaluation of Thermodynamic, Kinetic and Analytical Parameters of Two Phenazines

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