Researchers describe the successful implementation of imaging techniques that will allow scientists to identify molecules and map their locations to areas smaller than a micron. The team demonstrated the technique with natural samples, including a sample from the Murchison meteorite and a cometary dust grain (Iris) from NASA's Stardust mission.
Scientists have devised the first detailed model to quantify what they believe was the last unknown characteristic of film formation through deposition by vacuum sublimation and chemical vapor deposition.
The Structure of Paramagnetic Aggregates from Colloidal Emulsions (InSPACE) series of experiments on the International Space Station explored nanoparticles suspended in Magnetorheolocial (MR) fluids - a type of smart fluid that tends to self-assemble into shapes in the presence of a magnetic field.
As part of a project demonstrating new 3-D printing techniques, researchers have embedded tiny light-emitting diodes into a standard contact lens, allowing the device to project beams of colored light.
Researchers have created flexible, patterned sheets of multilayer graphene from a cheap polymer by burning it with a computer-controlled laser. The process works in air at room temperature and eliminates the need for hot furnaces and controlled environments, and it makes graphene that may be suitable for electronics or energy storage.
Precious elements such as platinum work well as catalysts in chemical reactions, but require large amounts of metal and can be expensive. However, computational modeling below the nanoscale level may allow researchers to design more efficient and affordable catalysts from gold.
A laboratory at Purdue University provided a critical part of the world's first transistor in 1947 - the purified germanium semiconductor -and now researchers here are on the forefront of a new germanium milestone.
Researchers have long viewed molybdenum sulfide (MoS2) as a promising, much cheaper alternative to platinum. The drawback is that MoS2's catalytic performance is far worse than platinum's. To get around that problem, researchers have been trying to find ways to improve MoS2's catalytic performance. And now they may be on to something.
The photovoltaic cells now used to turn sunlight into electricity can only absorb and use a small fraction of that light, and that means a significant amount of solar energy goes untapped. A new technology represents a first step toward harnessing that lost energy.