Nanomaterials
Nov 7, 2018
Watching nanoparticle photoreactions
When Michal Vadai's experiment worked for the first time, she jumped out of her seat.
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Search results for gold nanoparticles
Nanomaterials
Nov 2, 2018
Paper-based lateral flow device to detect uranium in groundwater
The presence of uranium in groundwater can lead to severe health problems, from renal failure to cancer. Standard methods to detect uranium involve time-consuming processes and expensive, non-portable equipment. Measurements ...
Nanomaterials
Oct 18, 2018
Study provides insight into how nanoparticles interact with biological systems
Personal electronic devices—smartphones, computers, TVs, tablets, screens of all kinds—are a significant and growing source of the world's electronic waste. Many of these products use nanomaterials, but little is known ...
Nanophysics
Oct 9, 2018
Harvesting solar fuels through a bacterium's unusual appetite for gold
A bacterium named Moorella thermoacetica won't work for free. But UC Berkeley researchers have figured out it has an appetite for gold. And in exchange for this special treat, the bacterium has revealed a more efficient path ...
Nanomaterials
Sep 10, 2018
Photoelectrode that can harvest 85 percent of visible light
Scientists have developed a photoelectrode that can harvest 85 percent of visible light in a 30 nanometers-thin semiconductor layer between gold layers, converting light energy 11 times more efficiently than previous methods.
Materials Science
Sep 10, 2018
Researchers develop a solid material with mobile particles that react to the environment
Inside most materials, little is moving. But a new "active nanocomposite" is teeming with motion: small particles connect or separate, thus changing the color of the entire material. It was made by scientists of the Leibniz ...
Nanomaterials
Sep 7, 2018
Nanoparticles form supercrystals under pressure
Self-assembly and crystallisation of nanoparticles (NPs) is generally a complex process, based on the evaporation or precipitation of NP-building blocks. Obtaining high-quality supercrystals is slow, dependent on forming ...
Nanomaterials
Sep 6, 2018
Why size matters for gold as a catalyst
Gold is the noblest metal—the most resistant to oxidation. However, nano-size gold has a unique ability to perform as a catalyst, even at low temperatures. The underlying mechanism for this size-dependent change in properties ...
Nanophysics
Sep 5, 2018
Probing the limits of plasmonic enhancement using a two-dimensional atomic crystal probe
A research group led by Shunping Zhang and Hongxing Xu at Wuhan University, China, has developed a quantitative SERS technique to probe the maximum plasmonic fields before effects such as electron tunneling become dominant. ...
Analytical Chemistry
Sep 3, 2018
Color-changing sensor detects signs of eye damage in tears
A new point-of-care rapid-sensing device can detect a key marker of eye injury in minutes – a time frame crucial to treating eye trauma.
