Results 11 to 20 of about 80,355 (300)

Electrochemical Characterization of a Complex FeFe Hydrogenase, the Electron-Bifurcating Hnd From Desulfovibrio fructosovorans

open access: yesFrontiers in Chemistry, 2021
Hnd, an FeFe hydrogenase from Desulfovibrio fructosovorans, is a tetrameric enzyme that can perform flavin-based electron bifurcation. It couples the oxidation of H2 to both the exergonic reduction of NAD+ and the endergonic reduction of a ferredoxin. We
Aurore Jacq-Bailly   +8 more
doaj   +1 more source

Ubiquinone electrochemistry in analysis and sensing

open access: yesElectrochemical Science Advances, 2023
Ubiquinone (UQ) is a lipophilic compound present in most living organisms, where UQ's interesting but complex electrochemistry serves an important role in the transfer of electrons and protons within and across the mitochondrial membrane.
Peter Ó Conghaile, Damien W. M. Arrigan
doaj   +1 more source

The direct electrochemistry of ferritin compared with the direct electrochemistry of nanoparticulate hydrous ferric oxide [PDF]

open access: yesNew Journal of Chemistry, 2002
Horse spleen ferritin is a naturally occurring iron storage protein, consisting of a protein shell encapsulating a hydrous ferric oxide core about 8 nm in diameter. It is known from prior work that the protein can be adsorbed onto the surface of tin-doped indium oxide (ITO) electrodes, where it undergoes voltammetric reduction at about −0.6 V vs.
Frank Marken   +4 more
openaire   +1 more source

DNA-Mediated Electrochemistry [PDF]

open access: yes, 2008
The base pair stack of DNA has been demonstrated as a medium for long-range charge transport chemistry both in solution and at DNA-modified surfaces. This chemistry is exquisitely sensitive to structural perturbations in the base pair stack as occur with
Barton, Jacqueline K.   +2 more
core   +2 more sources

New perspectives in hydrogenase direct electrochemistry [PDF]

open access: yesCurrent Opinion in Electrochemistry, 2017
Electrochemical studies of hydrogenases, the biological catalysts of H2 oxidation and production, have proven wrong the old saying that enzymes do not easily transfer electrons to electrodes in the absence of mediators. Many distinct hydrogenases have actually been directly connected to electrodes or particles, for studying their catalytic mechanism or
Sensi, Matteo   +4 more
openaire   +2 more sources

Construction of a Biosensor Based on a Combination of Cytochrome c, Graphene, and Gold Nanoparticles

open access: yesSensors, 2018
A biosensor based on a combination of cytochrome c (Cyt c), electrochemical reduced graphene oxides (ERGO), and gold nanoparticles (AuNPs) on a glassy carbon electrode (GCE) was fabricated.
Chenxing Guo   +6 more
doaj   +1 more source

Electrochemistry of potential bioreductive alkylating quinones : Part 2. Electrochemical properties of 2,5-bis(1-aziridinyl)-3,6-bis(ethoxycarbonylamino)-1,4-benzoquinone and some model compounds [PDF]

open access: yes, 1990
The reduction mechanism of 2,5-bis(1-aziridinyl)-3,6-bis(ethoxycarbonylamino)-1,4-benzoquinone (Diaziquone, AZQ) and several model compounds of the mono- and bis(1-aziridinyl)quinone type at the dropping mercury electrode in aqueous solutions was studied.
Blauw, J.S.   +6 more
core   +2 more sources

Synergy Effect of Nanocrystalline Cellulose for the Biosensing Detection of Glucose

open access: yesSensors, 2015
Integrating polypyrrole-cellulose nanocrystal-based composites with glucose oxidase (GOx) as a new sensing regime was investigated. Polypyrrole-cellulose nanocrystal (PPy-CNC)-based composite as a novel immobilization membrane with unique physicochemical
Chakavak Esmaeili   +5 more
doaj   +1 more source

Electrochemistry of ferrocenylphosphines FcCH₂PR₂ (Fc=(η⁵-C₅H₅)Fe(η⁵-C₅H₄); R=Ph, CH₂OH and CH₂CH₂CN), and some phosphine oxide, phosphine sulfide, phosphonium and metal complex derivatives [PDF]

open access: yes, 2003
Electrochemical studies of the free ferrocenylphosphine ligands FcCH₂PR₂ (Fc=(η⁵-C₅H₅)Fe(η⁵-C₅H₄); R=Ph, CH₂OH and CH₂CH₂CN) and some phosphine oxide, phosphine sulfide, phosphonium and metal derivatives are described.
Downard, Alison J.   +2 more
core   +2 more sources

Electrochemical Biosensor Based on Hemoglobin and Titanate Nanotubes Modified Electrode and its Application

open access: yesInternational Journal of Electrochemical Science, 2019
An electrochemical biosensor based on hemoglobin (Hb) and titanate nanotubes (TNTs) modified carbon ionic liquid electrode (CILE) was prepared with direct electrochemistry and electrocatalysis of Hb investigated.
Wenju Weng   +6 more
doaj   +1 more source

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