Electrochemical investigation of cyanobacteria Synechococcus sp. PCC7942-catalyzed photoreduction of exogenous quinones and photoelectrochemical oxidation of water

Takasu, Masaki; Miki, Atsushi; Wadano, Akira; Kano, Kenji; Ikeda, Tokuji

doi:10.1016/s0022-0728(00)00253-9

Cited by 81 publications

(71 citation statements)

References 44 publications

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“…Various cyanobacteria were used in most effective PMFCs reported (Yagishita et al, 1993;Torimura et al, 2001;Pisciotta et al, 2010). In particular, the ability of the cyanobacteria Nostoc sp, in generating a photocurrent was investigated using various electrochemical methods.…”

Section: The Bacterial Cell As Photobiocatalystmentioning

confidence: 99%

“…Since the structure of the BQ is similar to that of PQ, the addition facilitated electron transfer from the PS2 to the MWCNT (Sekar et al, 2014). Previously, mediators such as BQ, 2,6-dimethyl-1-benzoquinone (DMBIB), and 2-hydroxy-1,4-naftahinon (HNQ) were also used for accepting the electrons from the cyanobacterial photosynthetic ETC (Yagishita et al, 1993;Torimura et al, 2001). …”

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confidence: 99%

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Photoelectrochemical cells based on photosynthetic systems: a review

et al. 2015

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HIGHLIGHTSPhotosynthesis is a process which converts light energy into energy contained in the chemical bonds of organic compounds by photosynthetic pigments such as chlorophyll (Chl a, b, c, d, f) or bacteriochlorophyll. It occurs in phototrophic organisms, which include higher plants and many types of photosynthetic bacteria, including cyanobacteria. In the case of the oxygenic photosynthesis, water is a donor of both electrons and protons, and solar radiation serves as inexhaustible source of energy. Efficiency of energy conversion in the primary processes of photosynthesis is close to 100%. Therefore, for many years photosynthesis has attracted the attention of researchers and designers looking for alternative energy systems as one of the most efficient and eco-friendly pathways of energy conversion. The latest advances in the design of optimal solar cells include the creation of converters based on thylakoid membranes, photosystems, and whole cells of cyanobacteria immobilized on nanostructured electrode (gold nanoparticles, carbon nanotubes, nanoparticles of ZnO and TiO2). The mode of solar energy conversion in photosynthesis has a great potential as a source of renewable energy while it is sustainable and environmentally safety as well. Application of pigments such as Chl f and Chl d (unlike Chl a and Chl b), by absorbing the far-red and near infrared region of the spectrum (in the range 700-750 nm), will allow to increase the efficiency of such light transforming systems. This review article presents the last achievements in the field of energy photoconverters based on photosynthetic systems.

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Section: The Bacterial Cell As Photobiocatalystmentioning

confidence: 99%

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confidence: 99%

Photoelectrochemical cells based on photosynthetic systems: a review

et al. 2015

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“…A short presentation of very special employments of carbon paste can be completed with: (i) a solar cell, employing a naturally occurring Chlorophyll analogue, molecular oxygen (dissolved in aqueous solution), and a CPE that yielded the measurable photo-current [217]; (ii) a photosynthetic system based on a cyanobacteria with a 1,4-benzoquinone-derived mediator that provides the steady-state current signal of photoelectrochemical oxidation of water [218]; (iii) construction of an electrostatic-quadrupole lens system with the aid of the carbon nanotube paste substrate acting as an emitter [219]; or (iv) multi-instrumental analysis of sunflower plant tissues exposed to the effect of Ag(I) ions in an effort to simulate a bio-indication of natural pollution ("environmental stress" [220]), which can then be evaluated via the growth depression, changes in colour, or a lack of root hairs; all being applicable in correlations with the cascade of natural processes connected with photosynthesis. Similarly, the GCE alone and its Pt-disc analogues were usually the electrodes of choice for the determination of noble metals, or anions and molecules that could not be determined with the HMDE or MFE, respectively [4].…”

Section: Miscellaneousmentioning

confidence: 99%

Carbon paste electrodes in the new millennium

et al. 2009

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Abstract:In this review (with 500 refs), both electrochemistry and electroanalysis with carbon paste-based electrodes, sensors, and detectors are of interest, when attention is focused on the research activities in the years of new millennium. Concerned are all important aspects of the field, from fundamental investigations with carbon paste as the electrode material, via laboratory examination of the first electrode prototypes, basic and advanced studies of various electrode processes and other phenomena, up to practical applications to the determination of inorganic ions, complexes, and molecules. The latter is presented in a series of extensive tables, offering a nearly complete survey of methods published within the period of [2001][2002][2003][2004][2005][2006][2007][2008]. Finally, the latest trends and outstanding achievements are also outlined and future prospects given.© Versita Warsaw and Springer-Verlag Berlin Heidelberg.

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“…Chloroplast, photosystemenriched fraction, and thylakoid membrane in plants or intact photosynthetic microorganisms such as cyanobacteria have been utilized as catalysts. [82][83][84][85] p-Quinones (Q) are good mediators from the kinetic view points, but there is a power loss because of rather positive E˚M (Fig. 8 (B)).…”

Section: Biofuel Cellsmentioning

confidence: 99%

“…8 (B)). 83 Considering these thermodynamic and kinetic properties of mediated bioelectrocatalytic reactions, it has become easy to generate about 0.5 -1 V at an open circuit under mild conditions by combining suitable biofuel half-cells. However, the power density in biofuel cells is two or three orders lower than that of non-biocatalytic fuel cells, due to kinetic hindrance.…”

Section: Biofuel Cellsmentioning

confidence: 99%

Fundamentals and Practices of Mediated Bioelectrocatalysis

2000

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Recent progress in mediated bioelectrocatalysis is reviewed. In a section concerning fundamentals, special attention is paid to describing the property of a steady-state current in this system from thermodynamic and kinetic viewpoints. Practical applications of the system includes biosensors for enzyme substrates, amplified detection of mediators, bioreactors, biofuel cells, enzyme kinetic measurements, and protein redox potential measurements.

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Electrochemical investigation of cyanobacteria Synechococcus sp. PCC7942-catalyzed photoreduction of exogenous quinones and photoelectrochemical oxidation of water

Cited by 81 publications

References 44 publications

Photoelectrochemical cells based on photosynthetic systems: a review

Photoelectrochemical cells based on photosynthetic systems: a review

Carbon paste electrodes in the new millennium

Fundamentals and Practices of Mediated Bioelectrocatalysis

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