Oxide Layer
Oxide Layer - Related Videos
08:58
En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries
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Cited by 10 •
2016
In this article we describe an adapted relatively easy method using the fluorescence dye diaminofluorescein-2 diacetate (DAF-2DA) and dihydroethidium (DHE) for en face simultaneous detection and visualization of intracellular nitric oxide (NO) and superoxide anion (O2.−) respectively, in freshly isolated intact aortas of an obesity mouse model.
12:32
The Effect of Anodization Parameters on the Aluminum Oxide Dielectric Layer of Thin-Film Transistors
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2020
Anodization parameters for growth of the aluminum-oxide dielectric layer of zinc-oxide thin-film transistors (TFTs) are varied to determine the effects on the electrical parameter responses. Analysis of variance (ANOVA) is applied to a Plackett-Burman design of experiments (DOE) to determine the manufacturing conditions that result in optimized device performance.
03:14
Oxidation Numbers
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2020
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules. Oxidation Number (Oxidation State) In the case of an ionic compound, oxidation numbers are assigned based on the number of electrons transferred between reacting species. For example, in the formation of calcium...
09:56
Layer-by-layer Collagen Deposition in Microfluidic Devices for Microtissue Stabilization
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Cited by 7 •
2015
The creation of functional microtissues within microfluidic devices requires the stabilization of cell phenotypes by adapting traditional cell culture techniques to the limited spatial dimensions in microdevices. Modification of collagen allows the layer-by-layer deposition of ultrathin collagen assemblies that can stabilize primary cells, such as hepatocytes, as microfluidic tissue models.
03:07
Thin-Layer Chromatography - Concepts
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2020
Chromatography Chromatography is a technique used in organic chemistry to separate compounds in a mixture based on their differences in solubility between two different phases. The concept is similar to liquid-liquid extraction, except in chromatography, the two phases consist of the stationary phase and the mobile phase. The stationary phase is a solid — typically a microscale hydrogel bead — while the mobile phase is a carrier solvent. In traditional chromatography, the stationary phase is...
FAQs
Changes in temperature, exposure conditions, and diffusion alter how oxygen-containing species reach the material surface and react with underlying atoms. These variables affect the film’s thickness, composition, and structure, so oxide growth is not fixed across environments. Studying those dependencies helps researchers relate chemical conditions to the resulting surface properties.
Diffusion controls the movement of oxygen-containing species toward the reacting surface and helps determine how oxidation proceeds. Its interaction with the chemical reaction at the material interface influences the film’s thickness, composition, and structure. This transport process explains why the same metal or semiconductor can develop different oxide characteristics under different exposure conditions.
When oxide formation supports passivation, the film helps protect the underlying metal. The outcome changes when the layer cracks or remains porous, conditions associated with corrosion rather than effective protection. Thus, the chemical presence of an oxide alone does not determine performance; the layer’s physical condition strongly influences whether it protects the material or contributes to degradation.
These characteristics can modify a material’s electrical, optical, and catalytic behavior. A change in oxidation conditions can therefore produce more than a different surface appearance; it can alter how the metal or semiconductor functions. Researchers consider thickness, composition, and structure when connecting surface chemistry with performance in devices, sensors, corrosion systems, and other applications.
Researchers can control oxide formation by managing the conditions that govern oxygen access and reaction, especially temperature, exposure conditions, and diffusion. Adjusting these factors changes the film’s thickness, composition, and structure. Such control is important when the desired outcome is corrosion protection or a specific electrical, optical, or catalytic behavior.
Controlled oxide layers support several research and technology areas, including corrosion protection, sensors, batteries, and semiconductor devices. In each setting, the film’s chemistry and physical structure can influence the underlying material’s behavior. Their study therefore links oxidation reactions at a surface with practical goals involving protection, detection, energy-related systems, and electronic materials.