- Cameras and displays: Organic photodiodes for sensor applications
Powerful, inexpensive and even flexible when they need to be, organic photodiodes are a promising alternative to silicon-based photodetectors. They are used to improve light sensitivity in cameras and to check displays for homogeneous color composition. Scientists are now developing just this kind of component to fit customer-specific requirements.
- Silly Putty material inspires better batteries: Silicon dioxide used to make lithium-ion batteries that last three times longer
Using a material found in Silly Putty and surgical tubing, a group of researchers have developed a new way to make lithium-ion batteries that will last three times longer between charges compared to the current industry standard.
- Definitive evidence of how zeolites grow: Tracking crystal growth in real time
Researchers have found the first definitive evidence of how silicalite-1 zeolites grow, showing that growth is a concerted process involving both the attachment of nanoparticles and the addition of molecules. Both processes appear to happen simultaneously, said the lead author.
- Control methane now, greenhouse gas expert warns
As the shale gas boom continues, the atmosphere receives more methane, adding to Earth’s greenhouse gas problem. A greenhouse gas expert and ecology and environmental biology professor fears that we may not be many years away from an environmental tipping point – and disaster. “Society needs to wean itself from the addiction to fossil fuels as quickly as possible,” he said. “But to replace some fossil fuels – coal, oil – with another, like natural gas, will not suffice as an approach to take on global warming. Rather, we should embrace the technologies of the 21st century and convert our energy systems to ones that rely on wind, solar and water power.”
- New insight into thermoelectric materials may boost green technologies
Physicists have found remarkable thermoelectric properties for a metal that may impact the search for materials useful in power generation, refrigeration or energy detection. Thermoelectric materials can turn a temperature difference into an electric voltage.
- Protein data bank archives its 100,000th molecule structure
As the single worldwide repository for the three-dimensional structures of large molecules and nucleic acids that are vital to pharmacology and bioinformatics research, the Protein Data Bank (PDB) recently archived its 100,000th molecule structure, doubling its size in just six years.
- Simplifying an ultrafast laser offers better control
Scientists have developed a new concept offering a simpler laser design, control over new parameters, and excellent performance potential. Called 'frequency domain optical parametric amplification,' the concept supersedes traditional time domain amplification schemes that have been the linchpin of ultrafast laser science for 20 years.
- Multilayer nanofiber face mask helps to combat pollution
Researchers have developed a ground-breaking filter technology that guards against the finest pollutants in the air. Haze is usually composed of pollutants in the form of tiny suspended particles or fine mists/droplets emitted from vehicles, coal-burning power plants and factories. Continued exposure increases the risk of developing respiratory problems, heart diseases and lung cancer. Can we avoid the unhealthy air?
- Graphene and painkiller receptor combined into scalable chemical sensor
Researchers have created an artificial chemical sensor based on one of the human body's most important receptors, one that is critical in the action of painkillers and anesthetics. In these devices, the receptors' activation produces an electrical response rather than a biochemical one, allowing that response to be read out by a computer.
- Nanostructures to facilitate the process to eliminate organic contaminants in water
Researchers have developed nanostructures that assist in the process of decontaminating water. The nanostructures are coated in titanium oxide to which nitrogen has been added. This allows sunlight, rather than ultraviolet radiation, to trigger the process involving the chemical reaction and destruction of contaminants.