Kenji Kano
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View article: Direct electron transfer-type bioelectrocatalytic dioxygen reduction with copper efflux oxidase lacking type I copper
Direct electron transfer-type bioelectrocatalytic dioxygen reduction with copper efflux oxidase lacking type I copper Open
Copper efflux oxidase (CueO) is a direct electron transfer (DET)-type bioelectrocatalyst used for dioxygen (O2) reduction. Type I copper (T1Cu) has been suggested to be essential for donating electrons to trinuclear copper center (TNC) dur…
View article: Reciprocal Sum Expression for Steady-state Current–potential Curve in Electrocatalytic Model: The Relationship between Desorption Process and Reversibility
Reciprocal Sum Expression for Steady-state Current–potential Curve in Electrocatalytic Model: The Relationship between Desorption Process and Reversibility Open
Steady-state current–potential curves are often used to evaluate electrocatalysts. Steady-state current is generally expressed as a sum of reciprocals. Previously, we proposed that the catalytic reaction should be considered and that the i…
View article: Migration Effects on the Cyclic Voltammograms of the Electrodeposition/-Dissolution of Metal Anodes: A Simulation Study
Migration Effects on the Cyclic Voltammograms of the Electrodeposition/-Dissolution of Metal Anodes: A Simulation Study Open
Cyclic voltammograms (CVs) of metal electrodeposition/-dissolution reveal a characteristic waveform with a linear response in the reduction reaction for electrodeposition and a triangular oxidation wave for electrodissolution. To investiga…
View article: Intracellular electron donor stripping to identify electron donors of indigo reduction
Intracellular electron donor stripping to identify electron donors of indigo reduction Open
The identification of the electron donor of a reduction reaction is one of the most important points for revealing the reaction mechanism and the enzyme involved. In some cases, it is difficult to identify the electron donor because microb…
View article: Roles of Sixth Bound Copper in Reductive Inactivation of Copper Efflux Oxidase
Roles of Sixth Bound Copper in Reductive Inactivation of Copper Efflux Oxidase Open
Copper efflux oxidase (CueO) is involved in copper homeostasis in Escherichia coli by catalyzing the oxidation of cuprous ion (Cu+) to cupric ion (Cu2+). CueO has been studied as a direct electron transfer (DET)-type bioelectrocatalyst owi…
View article: Effects of lignin on indigo-reducing activity and indigo particle size in indigo dye suspensions
Effects of lignin on indigo-reducing activity and indigo particle size in indigo dye suspensions Open
Microbial indigo reduction is a key reaction in indigo dyeing; however, the mechanism of the interaction with indigo remains unclear. We hypothesized that lignin is a candidate substance that supports this interaction. The addition of lign…
View article: Migration Effects Cause Linear Waveform in Cyclic Voltammetry of Metal Anode Electrodeposition/Dissolution without Supporting Electrolyte: Calculations and Experiments on a Model Case
Migration Effects Cause Linear Waveform in Cyclic Voltammetry of Metal Anode Electrodeposition/Dissolution without Supporting Electrolyte: Calculations and Experiments on a Model Case Open
Cyclic voltammetry of metal anode electrodeposition/dissolution often gives a linear waveform in the absence of supporting electrolyte. For a one-electron redox model system without supporting electrolyte, in which both redox species are s…
View article: Migration Effects cause Linear Response in Cyclic Voltammetry of Metal Anode Electrodeposition/Dissolution without Supporting Electrolyte: Calculations and Experiments on a Model Case
Migration Effects cause Linear Response in Cyclic Voltammetry of Metal Anode Electrodeposition/Dissolution without Supporting Electrolyte: Calculations and Experiments on a Model Case Open
Cyclic voltammetry of metal anode electrodeposition/dissolution often gives linear response in the absence of supporting electrolyte. For a one-electron redox model system without supporting electrolyte in which both redox species are solu…
View article: Essential Insight of Direct Electron Transfer-Type Bioelectrocatalysis by Membrane-Bound <scp>d</scp>-Fructose Dehydrogenase with Structural Bioelectrochemistry
Essential Insight of Direct Electron Transfer-Type Bioelectrocatalysis by Membrane-Bound <span>d</span>-Fructose Dehydrogenase with Structural Bioelectrochemistry Open
Flavin adenine dinucleotide-dependent d-fructose dehydrogenase (FDH) from Gluconobacter japonicus NBRC3260, a membrane-bound heterotrimeric flavohemoprotein capable of direct electron transfer (DET)-type bioelectrocatalysis, was investigat…
View article: Structure and function relationship of formate dehydrogenases: an overview of recent progress
Structure and function relationship of formate dehydrogenases: an overview of recent progress Open
Formate dehydrogenases (FDHs) catalyze the two-electron oxidation of formate to carbon dioxide. FDHs can be divided into several groups depending on their subunit composition and active-site metal ions. Metal-dependent (Mo- or W-containing…
View article: Essential Insight of Direct Electron Transfer-Type Bioelectrocatalysis by Membrane-bound D-Fructose Dehydrogenase with Structural Bioelectrochemistry
Essential Insight of Direct Electron Transfer-Type Bioelectrocatalysis by Membrane-bound D-Fructose Dehydrogenase with Structural Bioelectrochemistry Open
Flavin adenine dinucleotide-dependent D-fructose dehydrogenase (FDH) from Gluconobacter japonicus NBRC3260, a membrane-bound heterotrimeric flavohemoprotein capable of direct electron transfer (DET)-type bioelectrocatalysis, was investigat…
View article: Coupling of formate dehydrogenase to inverse-opal ITO-PSI electrodes for photocatalytic CO2 reduction
Coupling of formate dehydrogenase to inverse-opal ITO-PSI electrodes for photocatalytic CO2 reduction Open
Photosynthesis as one of the most fascinating natural processes uses sunlight and CO2 for the preparation of various organic substances. Taking nature as inspiration the present work applies two proteins in an artificial matrix for constru…
View article: Conductometric Analysis of Ion Equilibrium in Li<sup>+</sup>/F<sup>−</sup> and Mg<sup>2+</sup>/F<sup>−</sup> Hybrid Electrolyte Solutions
Conductometric Analysis of Ion Equilibrium in Li<sup>+</sup>/F<sup>−</sup> and Mg<sup>2+</sup>/F<sup>−</sup> Hybrid Electrolyte Solutions Open
Fluoride shuttle batteries are expected to be innovative with high energy density superior to lithium-ion ones as on-board power-source for electric vehicles. However, the low solubility of fluoride ion in organic solvents makes it difficu…
View article: Experimental and Theoretical Insights into Bienzymatic Cascade for Mediatorless Bioelectrochemical Ethanol Oxidation with Alcohol and Aldehyde Dehydrogenases
Experimental and Theoretical Insights into Bienzymatic Cascade for Mediatorless Bioelectrochemical Ethanol Oxidation with Alcohol and Aldehyde Dehydrogenases Open
The efficient utilization of biomass fuels is a critical component of a sustainable energy economy. Via respiration, acetic acid bacteria can oxidize biomass ethanol into acetic acid using membrane-bound alcohol and aldehyde dehydrogenases…
View article: Cryo-EM Structure of Formate Dehydrogenase 1 from Methylorubrum extorquens AM1
Cryo-EM Structure of Formate Dehydrogenase 1 from Methylorubrum extorquens AM1 Open
EMPIAR, the Electron Microscopy Public Image Archive centered at EMBL-EBI, is a public resource for raw electron microscopy images related to EMDB, contains micrographs, particle sets and tilt-series.
View article: Complexation of F<sup>–</sup> by Li<sup>+</sup> and Mg<sup>2+</sup> Ions as Inorganic Anion Acceptors in Lactone-Based Li<sup>+</sup>/F<sup>–</sup> and Mg<sup>2+</sup>/F<sup>–</sup> Hybrid Electrolytes for Fluoride Shuttle Batteries
Complexation of F<sup>–</sup> by Li<sup>+</sup> and Mg<sup>2+</sup> Ions as Inorganic Anion Acceptors in Lactone-Based Li<sup>+</sup>/F<sup>–</sup> and Mg<sup>2+</sup>/F<sup>–</sup> Hybrid Electrolytes for Fluoride Shuttle Batteries Open
The development of high-quality fluoride-ion transporting electrolytes is a crucial demand for fluoride shuttle batteries (FSBs). However, the uncontrolled chemical and electrochemical activities of fluoride ions narrow the available poten…
View article: Chemical Equilibrium from the Viewpoint of Mixing Entropy and Some Comments on Equilibrium Constants
Chemical Equilibrium from the Viewpoint of Mixing Entropy and Some Comments on Equilibrium Constants Open
Chemical reaction equilibrium was often introduced based on the kinetic assumption called the mass action law. In this paper, problems in the kinetic concept are pointed out and several equilibrium constants are derived on the concept of t…
View article: Analysis Method for Rotating Disk Voltammograms of Electrocatalytic Reaction —Oxygen Reduction Reaction—
Analysis Method for Rotating Disk Voltammograms of Electrocatalytic Reaction —Oxygen Reduction Reaction— Open
Rotating disk voltammograms of electrocatalytic reactions were often analyzed on a model of the totally irreversible reaction. The problem with the conventional method is pointed out, and the validity of an analysis method on a model of th…
View article: Reciprocal Sum Expression for Steady-state Kinetics —Enzyme Reactions and Voltammetry—
Reciprocal Sum Expression for Steady-state Kinetics —Enzyme Reactions and Voltammetry— Open
Steady-state experiments are often conducted to understand complicated cases in chemistry, since the kinetics does not have a time valuable and allows simple modeling of the reactions. The reciprocal of the overall rate of sequential stead…
View article: Multiple electron transfer pathways of tungsten-containing formate dehydrogenase in direct electron transfer-type bioelectrocatalysis
Multiple electron transfer pathways of tungsten-containing formate dehydrogenase in direct electron transfer-type bioelectrocatalysis Open
Tungsten-containing formate dehydrogenase from Methylorubrum extroquens AM1 (FoDH1) was investigated from structural biology and bioelectrochemistry. The electron transfer (ET) pathways were investigated by structural information, electros…
View article: Structural and Bioelectrochemical Elucidation of Direct Electron Transfer-type Membrane-bound Fructose Dehydrogenase
Structural and Bioelectrochemical Elucidation of Direct Electron Transfer-type Membrane-bound Fructose Dehydrogenase Open
Flavin adenine dinucleotide (FAD)-dependent fructose dehydrogenase (FDH) from Gluconobacter japonicus NBRC3260, a membrane-bound flavohemoprotein capable of direct electron transfer (DET)-type bioelectrocatalysis, was investigated from the…
View article: Fundamental insight into redox enzyme-based bioelectrocatalysis
Fundamental insight into redox enzyme-based bioelectrocatalysis Open
Redox enzymes can work as efficient electrocatalysts. The coupling of redox enzymatic reactions with electrode reactions is called enzymatic bioelectrocatalysis, which imparts high reaction specificity to electrode reactions with nonspecif…
View article: Indigo-Mediated Semi-Microbial Biofuel Cell Using an Indigo-Dye Fermenting Suspension
Indigo-Mediated Semi-Microbial Biofuel Cell Using an Indigo-Dye Fermenting Suspension Open
Aizome (Japanese indigo dyeing) is a unique dyeing method using microbial activity under anaerobic alkaline conditions. In indigo-dye fermenting suspensions; microorganisms reduce indigo into leuco-indigo with acetaldehyde as a reductant. …