Design of a Highly Efficient O<sub>2</sub> Cathode Based on Bilirubin Oxidase from <i>Magnaporthe oryzae</i>

Cadet, Marine; Brilland, Xavier; Gounel, Sébastien; Louërat, Frédéric; Mano, Nicolas

doi:10.1002/cphc.201300027

Cited by 20 publications

(28 citation statements)

References 35 publications

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“…The anodic redox polymer PVP-[Os(1,1′-dimethyl-2,2′bisimidazole) 2 À2-(6-methylpyridin2yl)imidazole] 2 þ /3 þ was provided by Abbott Diabetes Care (Courjean et al, 2010) and the cathodic redox polymer PAA-PVI-[Os(4,4′-dichloro-2,2′-bipyridine) 2 Cl] þ /2 þ was synthesized as previously reported (Cadet et al, 2013).…”

Section: Enzymes and Redox Polymersmentioning

confidence: 99%

“…The cathode was made with 62.6 wt% of redox polymer, 30 wt% of BODMo and 7.4 wt% of PEGDGE for a total loading of 2000 mg cm À 2 . Electrodes were allowed to dry 18 h at 4°C before testing (Cadet et al, 2013). For the stability measurements in blood a cellulose dialysis bag (10 kDa pore size) was used as protective membrane.…”

Section: Biofuel Cells Preparationmentioning

confidence: 99%

“…We obtained up to 129 mW cm À 2 at 0.38 V in presence of 8.2 mM glycaemia, which is to our knowledge, the highest power density obtained in human blood. We overcome the limitation found in blood because of the high selectivity of our bioelectrocatalyst and by finely designing our cathodic electrode with a new BOD from the fungus Magnaporthe oryzae (Cadet et al, 2013;Durand et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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An enzymatic glucose/O2 biofuel cell operating in human blood

Cadet

Gounel

Stinès-Chaumeil

et al. 2016

Biosensors and Bioelectronics

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111

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Section: Enzymes and Redox Polymersmentioning

confidence: 99%

Section: Biofuel Cells Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An enzymatic glucose/O2 biofuel cell operating in human blood

Cadet

Gounel

Stinès-Chaumeil

et al. 2016

Biosensors and Bioelectronics

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111

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“…MET is, however, efficiently achieved through redox hydrogels for MCOs, such as osmium-based polymers, the potentials of which can be tuned to mediate the catalysis. [69,313] In this case, electron hopping between the neighboring mediator entities allows connection between the enzymes and the electrode. Moreover, T. roseopersicina Hase was entrapped in sol-gel material doped with CNTs, [314] and showed stability over weeks.…”

Section: Toward Enzyme Stabilization Inside the Matrixmentioning

confidence: 99%

Biohydrogen for a New Generation of H₂/O₂ Biofuel Cells: A Sustainable Energy Perspective

et al. 2014

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Among sustainable alternatives to fossil fuel, proton exchange membrane fuel cells are promising devices that deliver electricity from hydrogen and oxygen, producing only water. The transformation of the fuel and oxidant however relies on rare‐metal catalysts. H2/O2 enzymatic biofuel cells thus emerge as sustainable biotechnological devices in which chemical catalysts are replaced by hydrogenases at the anode and multicopper oxidases at the cathode. This review discusses the recent breakthroughs and the limitations in all the components of H2/O2 biofuel cells: 1) Catalytic mechanisms involved in multicopper oxidases and hydrogenases, in addition to the new potential of enzymes from the biodiversity pool, which exhibit outstanding properties. 2) The molecular basis for oriented enzyme immobilization on the electrochemical interfaces as a prerequisite for a fast direct electron‐transfer rate. 3) The requirement for 3D networks to enhance current densities. 4) The production of H2 from biomass. 5) The history of H2/O2 biofuel cells and recent devices, which also highlights the remaining issues that will allow the use of such devices in low‐power applications.

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“…After dissolving the intermediate nickel layer (Figure 1 c), the structure is stabilized by incorporating a small amount of nail varnish at the extremities of the sandwich-type structure (in the The demand for miniaturized and eventually implantable electrochemical tools such as biosensors, biofuel cells, and batteries has led to the development of new technologies to overcome existing problems related to large dimensions, low current densities, and insuffi cient power output of such devices. [1][2][3] In the past decade, controlled tailoring the surface properties of electrodes has been explored in order to increase their active surface area and thus improve those key performances. For the design of electrode surfaces, self-assembly, and electrodeposition processes can be used to create a wide range of structures, well-adapted to the performance and functionality of such systems.…”

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confidence: 99%

Bottom‐up Generation of Miniaturized Coaxial Double Electrodes with Tunable Porosity

Karajić

Reculusa

Heim

et al. 2015

Adv Materials Inter

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effi cient electrochemical devices, particularly in the fi eld of implantable biofuel cells and biosensors. Among other parameters, the diffusion and redox reaction of molecules such as oxygen determines the operating voltage and thus the effi ciency of oxygen-dependent biofuel cells. [ 25,26 ] The present work introduces a new and straightforward strategy for the bottom-up fabrication of a miniaturized coaxial electrode architecture based on highly organized porous gold as a structural material with controllable thickness and pore diameter. Preliminary experiments were carried out with goldcoated glass slides and, subsequently, gold microwires served as substrates for the deposition of silica particles using the Langmuir-Blodgett (LB) technique to form a colloidal crystal on their surface.These silica opals were fi lled by electrodeposition with alternating metal layers in order to obtain a fi nal porous structure with two independently addressable macroporous gold electrodes. They constitute an extremely miniaturized and fully integrated electrochemical cell of either planar or cylindrical geometry with a characteristic active volume in the range of 0.1 µL, which can be further decreased if needed. Due to the controllable porosity and thickness of the electrode materials the approach that we present here opens a new path for the fabrication of electrochemical cells combining a signifi cantly decreased footprint with an increase in active surface area.The LB technique has been used for a long time for the controllable deposition of amphiphilic molecules or nanoparticles from a water-air interface onto the surface of a substrate. [27][28][29][30][31] It presents a very convenient approach to form homogeneous and well-organized colloidal crystals, which is complementary to other techniques that have been used such as controlled evaporation, electrophoretic deposition, and dip coating. [ 32 ] After dispersing the nanoparticles at the water-air interface of the LB trough, the compression of the fi lm is followed by measuring the surface tension as a function of fi lm area. The quality of the compression can be illustrated by depositing a defi ned number of silica particle layers on a solid substrate ( Figure 1 a).The so-obtained colloidal crystal is used as a template during a subsequent electrodeposition step. In order to obtain the fi nal miniaturized two electrode electrochemical cell, alternating gold-nickel-gold metal layers were generated in the colloidal crystal template, with the nickel layer playing the role of a sacrifi cial spacer between the two gold layers (Figure 1 b). In a fi rst set of experiments, a fl at gold substrate coated with multilayers of silica particles was used for the successive electrodeposition of gold, nickel, and gold under potentiostatic conditions. After dissolving the intermediate nickel layer (Figure 1 c), the structure is stabilized by incorporating a small amount of nail varnish at the extremities of the sandwich-type structure (in the The demand for miniaturized and eventually...

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Design of a Highly Efficient O₂ Cathode Based on Bilirubin Oxidase from Magnaporthe oryzae

Cited by 20 publications

References 35 publications

An enzymatic glucose/O2 biofuel cell operating in human blood

An enzymatic glucose/O2 biofuel cell operating in human blood

Biohydrogen for a New Generation of H₂/O₂ Biofuel Cells: A Sustainable Energy Perspective

Bottom‐up Generation of Miniaturized Coaxial Double Electrodes with Tunable Porosity

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Design of a Highly Efficient O2 Cathode Based on Bilirubin Oxidase from Magnaporthe oryzae

Cited by 20 publications

References 35 publications

An enzymatic glucose/O2 biofuel cell operating in human blood

An enzymatic glucose/O2 biofuel cell operating in human blood

Biohydrogen for a New Generation of H2/O2 Biofuel Cells: A Sustainable Energy Perspective

Bottom‐up Generation of Miniaturized Coaxial Double Electrodes with Tunable Porosity

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Design of a Highly Efficient O₂ Cathode Based on Bilirubin Oxidase from Magnaporthe oryzae

Biohydrogen for a New Generation of H₂/O₂ Biofuel Cells: A Sustainable Energy Perspective