The world is run by catalysts. They clean up after cars, help make fertilizers, and could be the key to better hydrogen fuel. Now, a team of chemists has found a better way to make metal nanoframe catalysts.
Researchers have designed a high-performance nanowire photodetector with side-gated structure by combining ferroelectric materials and nanowires, and the as-fabricated device can be employed to reduce the dark current and increase the sensitivity of the photodetectors.
Using coherent X-rays, a new technique has been discovered for sensing motion and velocity of small groups of atoms. This advance gives an unprecedented, nanoscale view of disordered objects as they are being created - like the thin films used to make solar cells and LCD screens.
In manganese monosilicide, microscopic magnetic vortices - skyrmions - may behave as 'collectivists' or 'individuals', i.e. they are able to create a single structure, or they can also split up individually. Studying the behaviour of skyrmions will help to create unique quantum devices based on new physical principles.
All cells protect themselves from the environment using very thin but ultra-strong membranes. In order to let useful molecules (nutrients etc.) go through the membrane, cells use 'gatekeeper molecules' called transporters. Researchers found out that these gatekeepers can now be manipulated to work longer hours by turning on a molecular switch.