Results 11 to 20 of about 1,462,174 (364)

Color of Copper/Copper Oxide [PDF]

open access: yesAdvanced Materials, 2021
AbstractStochastic inhomogeneous oxidation is an inherent characteristic of copper (Cu), often hindering color tuning and bandgap engineering of oxides. Coherent control of the interface between metal and metal oxide remains unresolved. Coherent propagation of an oxidation front in single‐crystal Cu thin film is demonstrated to achieve a full‐color ...
Myounghoon Lee   +19 more
openaire   +4 more sources

Large-Area Synthesis of High-Quality and Uniform Graphene Films on Copper Foils [PDF]

open access: yesScience, 2009
Growing Graphene The highest quality graphene samples, single-atom-thick layers of carbon, are suspended flakes exfoliated from graphite, but these samples are very small in size (square micrometers).
Xuesong Li   +12 more
semanticscholar   +1 more source

Copper homeostasis and cuproptosis in health and disease

open access: yesSignal Transduction and Targeted Therapy, 2022
As an essential micronutrient, copper is required for a wide range of physiological processes in virtually all cell types. Because the accumulation of intracellular copper can induce oxidative stress and perturbing cellular function, copper homeostasis ...
Liyun Chen, J. Min, Fudi Wang
semanticscholar   +1 more source

Copper and copper patina [PDF]

open access: yesKoroze a ochrana materialu, 2017
Abstract This article is aimed at summarizing knowledge about copper and patina that is formed on the surface of copper. The article describes chemical processes in patina formation and explains the difference between natural and artificial patina, as well as some methods used in the investigation of patina such as XRD analysis, EIS ...
P. Rak, R. Bureš
openaire   +2 more sources

Kinetics of pyrite oxidation by hydrogen peroxide in phosphoric acid solutions [PDF]

open access: yesJournal of the Serbian Chemical Society, 1999
The kinetics of pyrite oxidation by hydrogen peroxide in phosphoric acid solutions were investigated. The effects of stirring, temperature, and particle size, as well as of the hydrogen peroxide and phosphoric acid concentrations were studied ...
Dimitrijević Mile   +2 more
doaj   +1 more source

Microstructure and properties of a novel Cu–3Ti–0.1Mg–0.05B–0.05 La alloy with high strength and conductivity

open access: yes工程科学学报, 2023
The Cu–Ti alloy has similar mechanical properties and electrical conductivity to the Cu–Be alloy. It also exhibits excellent high-temperature properties and stress relaxation resistance.
Hu WANG, Yong-da MO, Hua-fen LOU
doaj   +1 more source

Role of Copper on Mitochondrial Function and Metabolism

open access: yesFrontiers in Molecular Biosciences, 2021
Copper is essential for life processes like energy metabolism, reactive oxygen species detoxification, iron uptake, and signaling in eukaryotic organisms.
L. Ruíz   +2 more
semanticscholar   +1 more source

Partially sintered copper‒ceria as excellent catalyst for the high-temperature reverse water gas shift reaction

open access: yesNature Communications, 2022
For high-temperature catalytic reaction, it is of significant importance and challenge to construct stable active sites in catalysts. Herein, we report the construction of sufficient and stable copper clusters in the copper‒ceria catalyst with high Cu ...
Hao Liu   +6 more
semanticscholar   +1 more source

Copper-containing nanoparticles: Mechanism of antimicrobial effect and application in dentistry-a narrative review

open access: yesFrontiers in Surgery, 2022
Copper has been used as an antimicrobial agent long time ago. Nowadays, copper-containing nanoparticles (NPs) with antimicrobial properties have been widely used in all aspects of our daily life.
Xinru Ma   +3 more
semanticscholar   +1 more source

COPPER ENZYMES IN ISOLATED CHLOROPLASTS. POLYPHENOLOXIDASE IN BETA VULGARIS.

open access: yesPlant Physiology, 1949
The chloroplast, as the seat of chlorophyll pigments in plants, occupies a unique position in the economy of the green cell. In recent years there has been a renewed interest in the reactions and properties of chloroplasts as a result of the work of Hill
D. Arnon
semanticscholar   +1 more source

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