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114 Current newsrss
New findings could enhance stabilizing or destabilizing nanoparticles, depending on their uses
University of Oregon chemists studying the structure of ligand-stabilized gold nanoparticles have captured fundamental new insights about their stability. The information, they say, could help to maintain a desired, integral property in nanoparticles used in electronic devices, where ...
Slowly cooled DNA transforms disordered nanoparticles into orderly crystal
Nature builds flawless diamonds, sapphires and other gems. Now a Northwestern University research team is the first to build near-perfect single crystals out of nanoparticles and DNA, using the same structure favored by nature. "Single crystals are the backbone of many things we rely on -- ...
Gold-palladium nanocatalysts set new mark for breakdown of nitrites
Chemical engineers at Rice University have found a new catalyst that can rapidly break down nitrites, a common and harmful contaminant in drinking water that often results from overuse of agricultural fertilizers. Nitrites and their more abundant cousins, nitrates, are inorganic compounds ...
Cooling systems generally rely on water pumped through pipes to remove unwanted heat. Now, researchers at MIT and in Australia have found a way of enhancing heat transfer in such systems by using magnetic fields, a method that could prevent hotspots that can lead to system failures. The ...
Researchers at Oregon State University and the University of Oregon announced a scientific advance that has eluded researchers for more than 100 years – a platform to fully study and understand the aqueous chemistry of aluminum, one of the world's most important metals. The findings, reported ...
By tuning gold nanoparticles to just the right size, researchers from Brown University have developed a catalyst that selectively converts carbon dioxide (CO2) to carbon monoxide (CO), an active carbon molecule that can be used to make alternative fuels and commodity chemicals. “Our study ...
Instead of having to use tons of crushing force and volcanic heat to forge diamonds, researchers at Case Western Reserve University have developed a way to cheaply make nanodiamonds on a lab bench at atmospheric pressure and near room temperature. The nanodiamonds are formed directly from a ...
Standardized technique opens remarkable opportunities for 'mix and match' materials fabrication
NY-Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have developed a general approach for combining different types of nanoparticles to produce large-scale composite materials. The technique, described in a paper published online by Nature Nanotechnology, opens ...
Temperature regulates a new delivery system for drugs and fragrances
Microscopic, bottle-like structures with corks that melt at precisely-controlled temperatures could potentially release drugs inside the body or fragrances onto the skin, according to a recently published study. Typical drug delivery systems act more like sponges than bottles. For example, ...
Container's material properties affect the viscosity of water at the nanoscale
Water pours into a cup at about the same rate regardless of whether the water bottle is made of glass or plastic. But at nanometer-size scales for water and potentially other fluids, whether the container is made of glass or plastic does make a significant difference. A new study shows that ...