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601 Current news about the topic nanoparticlesrss
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Producing nanomaterials from plant extracts
A team of scientists from Ural Federal University (Yekaterinburg), Bangladesh University of Engineering and Technology and other collaborator have published an article about a new method for the synthesis of magnetic nanoparticles. Today nanoparticles are used in various fields, from biomedicine ...
An HZB team has for the first time precisely analysed how nanoparticles of lithium sulphide and sulphur precipitate onto battery electrodes during the course of the charging cycle. The results can help increase the service life of lithium-sulphur batteries. Lithium-sulphur batteries are regarded ...
Many industrial buildings, including nuclear power plants and chemical plants, rely on ultrasound instruments that continually monitor the structural integrity of their systems without damaging or altering their features. One new technique draws on laser technology and candle soot to generate ...
Researchers have developed artificial 'chameleon skin' that changes colour when exposed to light and could be used in applications such as active camouflage and large-scale dynamic displays. The material, developed by researchers from the University of Cambridge, is made of tiny particles of gold ...
Chemotactic movement on the macroscale by a swarm of bacteria-mimicking nanoswimmers
Bacteria can actively move towards a nutrient source—a phenomenon known as chemotaxis—and they can move collectively in a process known as swarming. Chinese scientists have redesigned collective chemotaxis by creating artificial model nanoswimmers from chemically and biochemically modified gold ...
Patent pending for process
Not much is possible without catalysts: More than 80% of all chemically manufactured products undergo a catalytic step during their production. The active material is usually platinum or another precious metal, so production is correspondingly expensive and requires several steps. Physicists at ...
Not only are greasy fingerprints on shiny stainless steel surfaces unattractive, they also attack the surface in question. A new nanocoating being developed by Fraunhofer researchers will in the future prevent the annoying smudges that result from fingers touching stainless steel surfaces. The ...
Modelling leads to the optimum size for platinum fuel cell catalysts
An interdisciplinary research team at the Technical University of Munich (TUM) has built platinum nanoparticles for catalysis in fuel cells: The new size-optimized catalysts are twice as good as the best process commercially available today. Fuel cells may well replace batteries as the power ...
Precious metals are often efficient catalysts. But they are expensive and rare. However, it has so far been difficult to determine how efficient non-precious metal alternatives are. Non-precious metal nanoparticles could one day replace expensive catalysts for hydrogen production. However, it is ...
New strategy to separate molecules
In our daily lives, the purpose and function of an item is defined by either its material, e.g. a rain jacket is fabricated of water-proof material, or its shape, e.g. a wheel is round to enable a rolling motion. What is the impact of the two factors on the nanoscale? The impact of material, ...