Enzymatic Biofuel Cells

Atanassov, Plamen; Apblett, C.; Banta, Scott; Brozik, Susan M.; Barton, Scott Calabrese; Cooney, Michael J.; Liaw, Bor Yann; Mukerjee, Sanjeev; Minteer, Shelley D.

doi:10.1149/2.f04072if

Cited by 99 publications

(30 citation statements)

References 8 publications

(8 reference statements)

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“…Efforts have been made to develop enzymatic biofuel cells, which take advantage of the natural efficiency of oxidoreductase enzymes to oxidize or reduce easily accessible substrates. [1][2][3][4][5][6] Several enzymes have been employed in biofuel cells. In particular, dioxygen reducing enzymes, such as laccases, have attracted great attention due to their ability to decrease the activation barrier of dioxygen reduction.…”

Section: Introductionmentioning

confidence: 99%

Bioelectrocatalytic reduction of O₂at a supramolecularly associated laccase electrode

2014

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In order to improve the bioelectrocatalytic reduction of dioxygen, a method for the supramolecular immobilization of Trametes versicolor laccase is reported. The immobilization support consisted of a selfassembled monolayer (SAM) of mercaptoundecanoic acid tyrosine amide on gold electrodes. To mediate the electron transfer between the enzyme and the electrode surface, ferrocenehexanethiol was introduced into the SAM as a second component. The resulting system was studied by cyclic voltammetry. Reduction of dioxygen started at 0.80 V, with a reduction peak at 0.52 V and a decrease in its intensity was observed when the solution was deaerated. The achieved current density for dioxygen reduction (23 mA cm À2 , open to air) suggests a high surface density of active enzyme prone to bioelectrocatalytic activity. This system offers new insights into the supramolecular design of biofuel cells.

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Section: Introductionmentioning

confidence: 99%

Bioelectrocatalytic reduction of O₂at a supramolecularly associated laccase electrode

2014

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“…In addition to the fuel availability, the incomplete oxidation of the biofuels at the anode also limits the obtained power. [93] While in living organisms, complex molecules are oxidized in an intricate system of enzymes, BFC are usually composed by a single enzyme, and can hardly lead to complete oxidation of the fuel. Several research groups have studied enzymatic cascade and combinations of bio-and inorganic catalysts to achieve complete fuel oxidation for maximizing the energy-conversion performance.…”

Section: Conclusion Prospects and Opportunitiesmentioning

confidence: 99%

On‐Body Bioelectronics: Wearable Biofuel Cells for Bioenergy Harvesting and Self‐Powered Biosensing

Jeerapan

Sempionatto

Wang

2019

Adv Funct Materials

164

113

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The growing power demands of wearable electronic devices have stimulated the development of on-body energy harvesting strategies. This article reviews the recent progress on rapidly emerging wearable biofuel cells (BFCs), along with related challenges and prospects. Advanced on-body BFCs in various wearable platforms, e.g., textiles, patches, temporary tattoo, or contact lenses, have enabled attractive advantages for bioenergy harnessing and self-powered biosensing. These noninvasive BFCs open up unique opportunities for utilizing bioenergy or monitoring biomarkers present in biofluids, e.g., sweat, saliva, interstitial fluid, and tears, toward new biomedical, fitness or defense applications. However, the realization of effective wearable BFC requires high-quality enzymeelectronic interface with efficient enzymatic and electrochemical processes and mechanical flexibility. Understanding the kinetics and mechanisms involved in the electron transfer process, as well as enzyme immobilization techniques, is essential for efficient and stable bioenergy harvesting under diverse mechanical strains and changing operational conditions expected in different biofluids and in a variety of outdoor activities. These key challenges of wearable BFCs are discussed along with potential solutions and future prospects. Understanding these obstacles and opportunities is crucial for transforming traditional bench-top BFCs to effective and successful wearable BFCs.

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“…[4][5][6] An EBFC is a type of fuel cell that produces energy by converting chemical energy directly into electrical energy without complicated energy conversion steps. 7,8 In general fuel cells, noble metal catalysts are used to promote the energy conversion process, with a separator that is placed between anode and cathode electrodes to mitigate mixed potential and self-discharge problems. [9][10][11][12] Different from the general fuel cells, in EBFCs, some enzymes, such as glucose oxidase (GOx), can be continuously cultured, implying that catalysts containing the enzymes can be fabricated without production limit.…”

Section: Introductionmentioning

confidence: 99%

“…As a promising power supply system, enzymatic biofuel cells (EBFCs), which are biocompatible and can work within the body temperature range, can be considered 4‐6 . An EBFC is a type of fuel cell that produces energy by converting chemical energy directly into electrical energy without complicated energy conversion steps 7,8 . In general fuel cells, noble metal catalysts are used to promote the energy conversion process, with a separator that is placed between anode and cathode electrodes to mitigate mixed potential and self‐discharge problems 9‐12 …”

Section: Introductionmentioning

confidence: 99%

Maximizing the enzyme immobilization of enzymatic glucose biofuel cells through hierarchically structured reduced graphene oxide

Lee

Hyun

Park

et al. 2021

Intl J of Energy Research

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The number of immobilized glucose oxidase (GOx) molecules is considerably increased by the structural modification of reduced graphene oxide (rGO), and the performance of enzymatic biofuel cells (EBFCs) is positively affected by the modification process. To do this, new rGO with three-dimensional open porous structure is formed by spray freeze drying method (sprGO), while tetrathiafulvalene (TTF) as mediator, and GOx are sequentially immobilized onto sprGO. To improve the loading amount of catalyst, rGO structure is modified to open porous sprGO structure possessing numerous anchoring sites, after which gelatin film crosslinked by glutaraldehyde is fabricated onto sprGO to prevent any losses of other components (sprGO/[TTF-GOx]/crosslinked-gelatin). Specific surface area and charge transfer resistance of sprGO are quantitatively measured, and the actual amount of immobilized GOx and the performance of EBFC using this catalyst are electrochemically examined. With this, it is found that the amount of GOx immobilized in sprGO/[TTF-GOx]/

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Enzymatic Biofuel Cells

Abstract: What would it be like if you could recharge your cell phone battery instantly by pouring your soft drink into it? Such applications may be a long way off, but the U.S. Air Force Office of Scientific Research is investing in such a future now.

Cited by 99 publications

References 8 publications

Bioelectrocatalytic reduction of O₂at a supramolecularly associated laccase electrode

Bioelectrocatalytic reduction of O₂at a supramolecularly associated laccase electrode

On‐Body Bioelectronics: Wearable Biofuel Cells for Bioenergy Harvesting and Self‐Powered Biosensing

Maximizing the enzyme immobilization of enzymatic glucose biofuel cells through hierarchically structured reduced graphene oxide

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Enzymatic Biofuel Cells

Abstract: What would it be like if you could recharge your cell phone battery instantly by pouring your soft drink into it? Such applications may be a long way off, but the U.S. Air Force Office of Scientific Research is investing in such a future now.

Cited by 99 publications

References 8 publications

Bioelectrocatalytic reduction of O2at a supramolecularly associated laccase electrode

Bioelectrocatalytic reduction of O2at a supramolecularly associated laccase electrode

On‐Body Bioelectronics: Wearable Biofuel Cells for Bioenergy Harvesting and Self‐Powered Biosensing

Maximizing the enzyme immobilization of enzymatic glucose biofuel cells through hierarchically structured reduced graphene oxide

Contact Info

Product

Resources

About

Bioelectrocatalytic reduction of O₂at a supramolecularly associated laccase electrode

Bioelectrocatalytic reduction of O₂at a supramolecularly associated laccase electrode