Integrated photosystem II-based photo-bioelectrochemical cells

Yehezkeli, Omer; Tel‐Vered, Ran; Wasserman, Julian; Trifonov, Alexander; Michaeli, Dorit; Nechushtai, Rachel; Willner, Itamar

doi:10.1038/ncomms1741

Cited by 243 publications

(217 citation statements)

References 65 publications

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“…Recently polymeric quinone was used to electrically connect photosystem II to the electrode, which functioned as the anode of a water splitting photo-bioelectrochemical cell (Figure 15(a)). 84 Quinonemodified electrodes were also used for efficient electron exchange with bacterial cells and applied to sensing toxic substances metabolized by bacteria 85 as well as increasing power output of microbial fuel cells [86][87][88] (Figure 15(b)). Quinone-functionalized chitosan electrodes could be used as a biological redox capacitor that can exchange electrons with biological components in solution, and later convert the amount of charge stored into electronic signal (Figure 15(c)).…”

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confidence: 99%

The Electrochemical Reaction Mechanism and Applications of Quinones

Kim¹,

Chung²

2014

Bulletin of the Korean Chemical Society

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This tutorial review provides a general account of the electrochemical behavior of quinones and their various applications. Quinone electrochemistry has been investigated for a long time due to its complexity. A simple point of view is developed that considers the relative stability of the reduced quinone species and the values of the first and second reduction potentials. The 9-membered square scheme in buffered aqueous solutions is explained and semiquinone radical stability is discussed in this context. Quinone redox reaction has also been employed in various studies. Diverse examples are presented under three broad categories defined by the roles of quinone: molecular tool for physical chemistry, versatile electron mediator, and charge storage for energy conversion devices.

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confidence: 99%

The Electrochemical Reaction Mechanism and Applications of Quinones

Kim¹,

Chung²

2014

Bulletin of the Korean Chemical Society

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“…The anode was electrically connected to the cathode by a composite based on bilirubin oxidase/carbon nanotube (BOD/CNT). They claimed that photo-induced quinone-mediated electron transfer led to the generation of photocurrent with an output power of 0.1 W (Yehezkeli et al, 2012).…”

Section: Photosystem II As Photobiocatalystmentioning

confidence: 99%

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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“…Other significant improvements are witnessed by immobilizing PSII in osmium-containing redox polymer based on poly(1-vinylimidazole) 17 and a matrix of 2-mercapto-1,4-benzoquinone (MBQ), electro-polymerized on the gold surface. 18 Further, a lot of effort has been taken to maintain the activity of the isolated thylakoids and photosystems by mimicking the natural environment on the electrode 11,13 or by preventing the loss of activity through catalytic quenching of reactive oxygen species which otherwise reduces the activity of the photosynthetic machines.…”

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Photosynthetic Energy Conversion: Recent Advances and Future Perspective

Sekar

Ramasamy

2015

Interface magazine

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Photosynthesis is the most important natural process on earth, which transformed the once lifeless planet into a living world. While primitive photosynthetic bacteria such as purple sulfur bacteria and green sulfur bacteria carry out anoxygenic photosynthesis, producing elemental sulfur from hydrogen sulfide with the help of sunlight, cyanobacteria, algae and plants carry out oxygenic photosynthesis to convert water and carbon dioxide to sugars with the help of sunlight and release oxygen as a byproduct. The conversion of solar energy to chemical energy via photosynthesis with the release of oxygen has an evolutionary significance on life as we know it today. In fact, photosynthesis is the only natural process known on earth to form oxygen from water. Further, fossil fuels such as coal, petroleum and natural gas are formed from the remains of the dead plants by exposure to heat and pressure in the earth's crust over millions of years. With increasing energy crisis and environmental issues lately, now is the time to revisit photosynthesis in order to address these issues. In this context, a great deal of ongoing research is focused on utilizing photosynthetic energy conversion as a renewable, self-sustainable and environment friendly source of energy. When compared to the finite reserve of fossil fuels, sunlight, the energy source for photosynthesis, is abundant around the planet and is inexhaustible.The earth receives solar energy at the rate of about 120,000 TW, which far exceeds our current global demand of ~16 TW.1 However the only major technology available for solar energy conversion is photovoltaics (PV). PV devices such as solar panels generate electrical power by converting solar radiation into direct current electricity using semiconductors. Solar cells include first generation conventional wafer-based cells made up of crystalline silicon (Fig. 1a), second generation thin film solar cells (Fig. 1b)

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Integrated photosystem II-based photo-bioelectrochemical cells

Cited by 243 publications

References 65 publications

The Electrochemical Reaction Mechanism and Applications of Quinones

The Electrochemical Reaction Mechanism and Applications of Quinones

Photoelectrochemical cells based on photosynthetic systems: a review

Photosynthetic Energy Conversion: Recent Advances and Future Perspective

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