Solid-liquid-gas reactions are common in various natural phenomenon and industrial applications, such as hydrogen-oxygen fuel cell reactions, heterogeneous catalysis and metal corrosion in ambient environments. However, the ...
Nanophysics
Jul 11, 2022
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45
An international team of researchers has demonstrated a technique that allows them to align gold nanorods using magnetic fields, while preserving the underlying optical properties of the gold nanorods.
Nanomaterials
Jun 22, 2022
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195
A new technology is using particles of gold to make colors. With further work, the method developed at Aalto University could herald a new display technology.
Nanomaterials
Jun 1, 2022
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502
Utrecht researchers have developed a new type of sensor, about 500 times smaller than the width of a human hair, with an unprecedented ability to detect extremely small amounts of molecules. These sensors can be used to detect ...
Nanophysics
Apr 19, 2022
2
155
Dig this: Catalysis appears to function because of holes.
Materials Science
Jan 10, 2022
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96
Catalysts are crucial to making industrial processes viable. However, many of the non-precious metal catalysts used for synthesis have low activity, are difficult to handle, and/or require harsh reaction conditions. Osaka ...
Materials Science
Apr 8, 2021
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28
A new approach makes liquid-crystal-like beacons out of harmful amyloid proteins present in diseases such as Type II diabetes.
Optics & Photonics
Feb 26, 2021
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28
Physicists at Chalmers University of Technology in Sweden, together with colleagues in Russia and Poland, have managed to achieve ultra-strong coupling between light and matter at room temperature. The discovery is of importance ...
General Physics
Sep 23, 2020
0
144
By blending paints in their palette, artists can create a broad spectrum of colors with subtly different hues. However, scientists who wish to create a similar range of structural colors, like those found on butterfly wings, ...
Nanophysics
Mar 4, 2020
0
13
In nature, viruses use nanocages to protect their genome. Some of these viruses can be disassembled into protein units to remove their genome. These protein units can then be reassembled into nanocages by other templates, ...
Bio & Medicine
Feb 28, 2020
0
8
In nanotechnology, nanorods are one morphology of nanoscale objects. Each of their dimensions range from 1–100 nm. They may be synthesized from metals or semiconducting materials. Standard aspect ratios (length divided by width) are 3-5. Nanorods are produced by direct chemical synthesis. A combination of ligands act as shape control agents and bond to different facets of the nanorod with different strengths. This allows different faces of the nanorod to grow at different rates, producing an elongated object.
The applications of nanorods are diverse, ranging from display technologies (the reflectivity of the rods can be changed by changing their orientation with an applied electric field) to microelectromechanical systems (MEMS).
Nanorods based on semiconducting materials have also been investigated for application as energy harvesting and light emitting devices. In 2006, Ramanathan et. al. demonstrated1 electric-field mediated tunable photoluminescence from ZnO nanorods, with potential for application as novel sources of near-ultraviolet radiation.
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