Results 111 to 120 of about 1,098,304 (355)

Enhanced oxygen reduction reaction on caffeine-modified platinum single-crystal electrodes

Communications Chemistry
Enhancing the activity of the oxygen reduction reaction (ORR) is crucial for fuel cell development, and hydrophobic species are known to increase the ORR activity.
Nagahiro Hoshi, Masashi Nakamura, Ryuta Kubo, Rui Suzuki   +3 more
doaj   +1 more source

Metformin promotes mitochondrial integrity through AMPK‐signaling in Leber's hereditary optic neuropathy

FEBS Open Bio, EarlyView.
Metformin mediates mitochondrial quality control in Leber's hereditary optic neuropathy (LHON) fibroblasts carrying mtDNA mutations. At therapeutic levels, metformin activates AMPK signaling to restore mitochondrial dynamics by promoting fusion and restraining fission, while preserving mitochondrial mass, enhancing autophagy/mitophagy and biogenesis ...
Chatnapa Panusatid, Rapasviranda Soiyangsuk, Maneeluck Tanadjindarat, Chayanon Peerapittayamongkol   +3 more
wiley   +1 more source

Study of the influence of phosphoric acid in steel anaerobic corrosion via the hydrogen evolution reaction. [PDF]

, 2007
Although it is well known that the phosphate species are quiet electrochemically inert when considering their calculated redox potential, few studies since the end of 80’s reported electrochemical phenomenon observed in the reduction domain which were ...
Basséguy, Régine, Bergel, Alain, De Silva Munoz, Leonardo   +2 more
core  

Evaluation of in vitro toxicity of common phytochemicals included in weight loss supplements using 1H NMR spectroscopy

FEBS Open Bio, EarlyView.
We investigated the toxicity of 12 active compounds commonly found in herbal weight loss supplements (WLS) using human liver and colon cell models. Epigallocatechin‐3‐gallate was the only compound showing significant toxicity. Metabolic profiling revealed protein degradation, disrupted energy and lipid metabolism suggesting that the inclusion of EGCG ...
Emily C. Davies, Garth L. Maker, Ian F. Musgrave, Samantha Lodge   +3 more
wiley   +1 more source

Nitrogen doped Carbon Nanotubes as Electrocatalyst for Oxygen Reduction Reaction

International Journal of Electrochemical Science, 2019
The oxygen reduction reaction on nitrogen doped multiwalled carbon nanotubes (N-MCNTs) is studied for its application for deoxygenation of seawater. N-MCNTs were synthesized using commercial MCNTs and polyaniline as nitrogen precursor and annealing at a ...
Utsav Raj Dotel, Fatemeh Davodi, Olli Sorsa, Tanja Kallio, Tor Hemmingsen   +4 more
doaj   +1 more source

Modeling the Oxygen Reduction Reaction on Nitrogen-Doped Graphene [PDF]

, 2014
Atmospheric carbon dioxide levels are higher than they have been in the last million years. The environmental concerns associated with anthropogenic carbon pollution have motivated investment in alternative energy sources.
Warburton, Robert
core  

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Study of Pt-Ru-Ir nano-catalysts derived from metal salts prepared by thermal pyrolysis to carry out the oxygen reduction reaction

Next Materials
The primary challenge in regenerative fuel cell systems is the preparation of electrodes where oxygen evolution and reduction reactions occur, known as bifunctional electrodes.
A.M. Fernandez, A. Altamirano-Gutiérrez
doaj   +1 more source

Heterostructures of MXenes and N-doped graphene as highly active bifunctional electrocatalysts

, 2018
MXenes with versatile chemistry and superior electrical conductivity are prevalent candidate materials for energy storage and catalysts. Inspired by recent experiments of hybridizing MXenes with carbon materials, here we theoretically design a series of ...
Liu, Nanshu, Pei, Wei, Yang, Xiaowei, Zhao, Jijun, Zhou, Si   +4 more
core   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source