Results 61 to 70 of about 289,146 (256)

Electrochemical Choline Sensing: Biological Context, Electron Transfer Pathways and Practical Design Strategies

Biomolecules
Choline is a central metabolite that connects membrane turnover, neurotransmission, and one-carbon metabolism, and its reliable measurement across diverse biological matrices remains a significant analytical challenge.
Angel A. J. Torriero, Sarah M. Thiak, Ashwin K. V. Mruthunjaya   +2 more
doaj   +1 more source

Electrochemical performance and microbial community profiles in microbial fuel cells in relation to electron transfer mechanisms

BMC Microbiology, 2017
Background Microbial fuel cells (MFCs) operating with complex microbial communities have been extensively reported in the past, and are commonly used in applications such as wastewater treatment, bioremediation or in-situ powering of environmental ...
Naroa Uria, Isabel Ferrera, Jordi Mas
doaj   +1 more source

Promiscuous stimulation of HSP70 ATPase activity by parasite‐derived J‐domains

FEBS Open Bio, EarlyView.
The malaria parasite Plasmodium falciparum exports three highly homologous yet functionally divergent J‐domain proteins into human erythrocytes. Here, we show that J‐domains isolated from all three proteins effectively stimulate the ATPase activity of both endogenous host and exported parasite HSP70 chaperones.
Julian Barth, Moritz Koch, Le‐Han Rössner, Johanna Eichhorn, Denys Pogoryelov, Matthias P. Mayer, Jude M. Przyborski   +6 more
wiley   +1 more source

Direct Electron Transfer of Myoglobin on CdO Nanoparticles Modified Glassy Carbon Electrode

International Journal of Electrochemical Science, 2013
In this study, direct electron transfer of myoglobin (Mb) on cadmium oxide (CdO) nanoparticles modified glassy carbon electrode (GCE) was investigated. Prepared CdO nanoparticles were studied by X-Ray diffraction (XRD) and UV–visible absorption methods ...
Nooshin Mohammadi, Yousoof Ghanbari-kakavandi, Ali Akbar Movassagh, Somayeh Nasereslami, Gholamreza Mohseni, Abbas Hajiosseinlo, Leila Sofimaryo, Reza Soleimani, Hajar Akbari-dastjerdi, Masoud Negahdary   +9 more
doaj   +1 more source

Direct electron transfer from alcohol dehydrogenase

RSC Advances, 2014
This study employed hydrodynamic cyclic voltammetry (HCV) with a glassy carbon (GC) rotating disk electrode (RDE), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS) to investigate the direct electron transfer (DET) behavior of alcohol dehydrogenase (ADH, EC 1.1.1.1) embedded or otherwise in polymyxin (PM) and adsorbed ...
Fábio Lima, Gilberto Maia
openaire   +1 more source

Establishing an assay to evaluate d‐amino acid oxidase enzyme kinetics and inhibition using WST‐8 redox dye

FEBS Open Bio, EarlyView.
This study investigated a novel WST‐8‐based assay for evaluating d‐Amino acid oxidase (DAO) inhibitors. We confirmed its effectiveness using known inhibitors and found that uremic toxins possess relatively weak inhibitory activity compared to existing drugs.
Kahoko Miyake, Yuki Enoki, Yuka Nakazawa, Kazuaki Taguchi, Kazuaki Matsumoto   +4 more
wiley   +1 more source

Laser Pulse Deposited Nanosized Ceria for Direct Electron Transfer of Glucose Oxidase

International Journal of Electrochemical Science, 2014
Ceria has a high isoelectric point (IEP~9.2) and its cerium atom reversibly undergoes oxidation/reduction process therefore theoretically capable through electrostatic interactions of immobilizing enzymes with lower IEP and of electrons mediating ...
Mouna Moumene, Amel Tabet-Aoul, Maxime Gougis, Dominic Rochefort, Mohamed Mohamedi   +4 more
doaj   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Bioelectrochemical Research on Direct Electron Transfer-type Bioelectrocatalysis and Their Applications

Electrochemistry
Direct electron transfer (DET)-type bioelectrocatalysis, in which enzymatic reactions proceed without the involvement of redox mediators, is a powerful approach for investigating intrinsic enzymatic features relevant to the development of advanced ...
Keisei SOWA
doaj   +1 more source

Nanoporous gold based electrodes for electrochemical studies of human neuroglobin

Electrochemistry Communications, 2020
Human neuroglobin (Ngb) is a heme protein expressed in the brain tissue and retina with an important neuroprotective role. However, its molecular mechanism is still under exploration.
Yasuhiro Mie, Kyoka Takahashi, Yuka Itoga, Kenta Sueyoshi, Hirofumi Tsujino, Taku Yamashita, Tadayuki Uno   +6 more
doaj   +1 more source