Graphene-based materials, prepared from the exfoliation of graphite oxide, are used as a model of interstellar carbon dust as they contain a relatively large amount of atomic defects, either at their edges or on their surface. These defects are thought to sustain the Eley-Rideal chemical reaction, which recombines two H atoms into one H2 molecule.
Researchers have devised a rapid screening method to select the most promising nanoparticles, thereby fast-tracking the development of future treatments. In less than a week, they are able to determine whether nanoparticles are compatible or not with the human body - an analysis that previously required several months of work.
Scientists have created a light source that has the right characteristics: a nano-LED that is 1000 times more efficient than its predecessors, and is capable of handling gigabits per second data speeds.
Scientists have discovered an entirely new class of materials based on boranes that might have widespread potential applications, including improved diagnostic tools for cancer and other diseases as well as low-cost solar energy cells.
Researchers develop a method for sensing the electric field generated in semiconductor devices during operation. The technique is demonstrated for a diamond device, with nitrogen-vacancy centers acting as local electric-field probes, subject to bias voltages up to 150 volt.