Pyruvate/Air Enzymatic Biofuel Cell Capable of Complete Oxidation

Sokic-Lazic, Daria

doi:10.1149/1.3170904

Cited by 90 publications

(60 citation statements)

References 17 publications

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“…Similarly, in some of the studies multi enzyme cascade was used for the complete oxidation of the substrates such as glucose [293], methanol [294], ethanol [295], pyruvate [296][297][298], glycerol [299][300][301], etc., to CO 2 generating higher number of electrons. Modified electrodes combining cellobiose dehydrogenase and pyranose dehydrogenase have shown to be capable of extracting up to 6 electrons from one molecule of glucose [302].…”

Section: Multi Enzyme Cascadesmentioning

confidence: 99%

Enzymatic Electrosynthesis: An Overview on the Progress in Enzyme- Electrodes for the Production of Electricity, Fuels and Chemicals

Satyawali¹

2013

J Microbial Biochem Technol

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Recent interest in the field of biocommodities production through bioelectrochemical systems has generated interest in the enzyme catalyzed redox reactions. Enzyme catalyzed electrodes are well established as sensors and power generators. However, a paradigm shift in recent science towards the production of useful chemicals has changed the face of biofuel cells, keeping the fuels or chemicals production in the upfront. This review article comprehensively presents the progress in the field of enzyme-electrodes for the production of electricity, fuels and chemicals with an aim to represent a practical outline for understanding the use of single or multiple redox enzymes as electrocatalysts for their electron transfer onto electrodes. It also provides the state-of-the-art information regarding the different existing processes to fabricate enzyme electrodes. Successfully-achieved electroenzymatic anodic and cathodic reactions are further discussed, together with their potential applications. Particular focus was made on the novel single/multiple enzyme systems towards product synthesis and other applications. Finally, techno-economic and environmental elements for industrial processing with enzyme catalyzed bioelectrochemical system (e-BES) are anticipated, in order to provide useful strategies for further development of this technology.

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Section: Multi Enzyme Cascadesmentioning

confidence: 99%

Enzymatic Electrosynthesis: An Overview on the Progress in Enzyme- Electrodes for the Production of Electricity, Fuels and Chemicals

Satyawali¹

2013

J Microbial Biochem Technol

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“…Using NMR, one could simultaneously examine substrate consumption and product formation to determine the rate of reaction and demonstrate the level of oxidation of an isotopically labeled fuel. [5][6][7] X-ray photoelectron spectroscopy (XPS) is very useful for characterizing materials in biofuel cells and surface composition of electrodes. 8 XPS directs a beam of monochromatic X-rays onto a sample, and the resulting photoelectrons are focused into a detector that measures their energies.…”

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confidence: 99%

Analytical Techniques for Characterizing Enzymatic Biofuel Cells

2009

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The rapid depletion in global nonrenewable energy stores has prompted a dramatic increase in both academic and industrial research toward alternate means of energy conversion. Although improbable as a single solution to the problem, fuel cells provide many potential contributions in the form of performance combined with scalability. Fuel cells have demonstrated high levels of power production through the consumption of renewable resources in an easily engineered small scale device that operates under mild conditions and could potentially replace today's ubiquitous batteries. Many evaluate energy conversion devices on the basis of the amount of energy converted per unit volume [energy density (Whr/L)] or per unit mass [specific energy (Whr/kg)]. Fuel cells not only rival battery performance in these terms, but also do not require time-consuming charging and do not suffer from the severe hysteresis effects seen in secondary batteries. However, many of these devices use expensive precious metal catalysts that often limit their commercial viability. Passivation by carbon monoxide or other byproducts causes losses in power production over time, and these devices often require high temperatures and harsh conditions to operate efficiently.Thus, many researchers have looked to nature to assist in our current energy conversion needs. Because of biological versatility and efficiency, organisms are able to convert enormous amounts of energy from an incomparable range of chemical substrates. Many researchers have examined ways of harnessing this ability using biofuel cells. Biofuel cells replace the metal catalyst with a biological catalyst: a microbe, enzyme, or even organelle interacting with an electrode surface. 1-3 These types of catalysts offer great benefits in catalytic activity, specificity, and cost. However, development and full evaluation of these dynamic and often sensitive bioelectrochemical systems require a diverse range of expertise. This article will focus on the current techniques used to evaluate the integrity, kinetics, and performance of enzymatic biofuel cells and the applications of the devices. The techniques described span not only the obvious electroanalytical characterization methods needed to evaluate a power source or analytical device, but also common biological and materials characterization techniques. Enzymatic biofuel cells are in an early stage of development, so new analytical techniques are being employed to understand the advantages and limitations of this technology and the engineering design envelope for applications. SPECTROSCOPIC TECHNIQUESEnzymatic biofuel cells employ oxidoreductase enzymes capable of catalyzing redox reactions. Enzymes that are free in solution ROBERT GATES Anal. Chem. 2009, 81, 9538-9545 10

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“…For instance, in a living system, glucose, fructose, glycerol, lactate, pyruvate, and ethanol are all fuels that can be oxidized through the Kreb s cycle. Each fuel will require different enzyme cascades to feed into the Kreb s cycle, but all of these biofuels can be oxidized through the Kreb s cycle [40,41]. Therefore, an electrode-based biomimic for the Kreb s cycle is an important start towards fuel flexibility and improving the energy density of the fuel.…”

Section: Enzyme Cascadesmentioning

confidence: 99%

Oxidation of Biofuels: Fuel Diversity and Effectiveness of Fuel Oxidation through Multiple Enzyme Cascades

et al. 2010

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Enzymatic biofuel cells have employed a variety of fuels, including: glucose, fructose, methanol, ethanol, glycerol, lactate, pyruvate and ethylene glycol. This review describes the wealth of fuel diversity in enzymatic biofuel cells, along with the use of multi-enzyme cascades for deep or complete oxidation of biofuels at the anode of enzymatic biofuel cells. Deep or complete oxidation is a relatively new research area for enzymatic biofuel cells, but it is necessary to increase energy density and minimize product inhibition effects.

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Pyruvate/Air Enzymatic Biofuel Cell Capable of Complete Oxidation

Cited by 90 publications

References 17 publications

Enzymatic Electrosynthesis: An Overview on the Progress in Enzyme- Electrodes for the Production of Electricity, Fuels and Chemicals

Enzymatic Electrosynthesis: An Overview on the Progress in Enzyme- Electrodes for the Production of Electricity, Fuels and Chemicals

Analytical Techniques for Characterizing Enzymatic Biofuel Cells

Oxidation of Biofuels: Fuel Diversity and Effectiveness of Fuel Oxidation through Multiple Enzyme Cascades

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