نتایج جستجو برای: bioelectrocatalysis

تعداد نتایج: 127  

Journal: :Bioelectrochemistry 2006
Cory M DiCarlo David L Compton Kervin O Evans Joseph A Laszlo

Cytochrome c immobilized on alkylthiol self-assembled monolayers exhibits a characteristic Fe(II)/Fe(III) redox signal that is lost when exposed to ionic liquids composed of a butylimidazolium cation combined with either hexafluorophosphate or bis(trifluoromethylsulfonyl)imide anion. In this study it was shown that exposure to the aqueous solubilized ionic liquid components, butyl-, hexyl-, and...

2014
Uriel Filobello-Nino Hector Vazquez-Leal Brahim Benhammouda Luis Hernandez-Martinez Yasir Khan Victor Manuel Jimenez-Fernandez Agustin Leobardo Herrera-May Roberto Castaneda-Sheissa Domitilo Pereyra-Diaz Juan Cervantes-Perez Jose Antonio Agustin Perez-Sesma Sergio Francisco Hernandez-Machuca Leticia Cuellar-Hernandez

In this article, Perturbation Method (PM) is employed to obtain a handy approximate solution to the steady state nonlinear reaction diffusion equation containing a nonlinear term related to Michaelis-Menten of the enzymatic reaction. Comparing graphics between the approximate and exact solutions, it will be shown that the PM method is quite efficient.

2010
Yixin Sun Shengfu Wang

A highly sensitive, fast and stable biosensor for determination of nitrite was developed using hemoglobin immobilized on a poly (N-isopropylacyamide-co-3methacryloxypropyltrimethoxysilane) (PNM) modified glass carbon electrodes. The matrix provided a biocompatible microenvironment for retaining the native structure and activity of the entrapped hemoglobin. Nitrite could be reduced by the electr...

Journal: :Applied and environmental microbiology 2013
Shota Kawai Maiko Goda-Tsutsumi Toshiharu Yakushi Kenji Kano Kazunobu Matsushita

A heterotrimeric flavoprotein-cytochrome c complex fructose dehydrogenase (FDH) of Gluconobacter japonicus NBRC3260 catalyzes the oxidation of d-fructose to produce 5-keto-d-fructose and is used for diagnosis and basic research purposes as a direct electron transfer-type bioelectrocatalysis. The fdhSCL genes encoding the FDH complex of G. japonicus NBRC3260 were isolated by a PCR-based gene amp...

Journal: :Bioelectrochemistry 2008
Dmitri Ivnitski Kateryna Artyushkova Plamen Atanassov

The key characteristics of multicopper oxidases are redox potentials of Type 1, Type 2 and Type 3 copper centers of enzymes. However, there is still a challenge to obtain a value of the redox "signature" of the enzymes. In this study, the electrochemical behavior of T1 and T2/T3 redox copper centers of bilirubin oxidase (BOD) from the fungi Myrothecium verrucaria was studied based on direct bio...

Journal: :Biochemical Society transactions 2000
A Ghindilis

The ability to catalyse an electrode reaction via direct (mediatorless) electron transfer has been demonstrated for a number of redox enzymes. In the case of mediatorless electron transfer, the electron is transferred directly from the electrode to the substrate molecule via the active site of the enzyme, or vice versa. The electron itself is the second substrate for the reaction. An important ...

Journal: :ACS Catalysis 2021

Carbon monoxide dehydrogenase catalyzes the reversible oxidation of CO to CO2. The monofunctional enzyme from Rhodospirillum rubrum (RrCODH) has been extensively characterized in past, although its use and investigation by bioelectrochemistry have limited. Here, we developed a heterologous system yielding highly stable active recombinant RrCODH one-step purification, with activity reaching maxi...

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