Layered transition metal dichalcogenides or TMDCs -- materials composed of metal nanolayers sandwiched between two other layers of chalcogens -- have become extremely attractive to the research community. Similar to graphene, they not only retain some of the unique properties of the bulk material, but also demonstrate direct-gap semiconducting behavior, excellent electrocatalytic activity and unique quantum phenomena such as charge density waves.
A new study of the response to the 2010 Deepwater Horizon in the Gulf of Mexico showed that massive quantities of chemically engineered dispersants injected at the wellhead -- roughly 1,500 meters (4,921 feet) beneath the surface -- were unrelated to the formation of the massive deepwater oil plume.
Electrocatalysts have shown promise as a way to efficiently convert waste CO2 into clean fuels, but the mechanisms by which they operate are often unknown making it hard for researchers to design new ones in a rational manner. New research demonstrates a laser-based spectroscopy technique that can be used to study the electrochemical reduction of CO2 in-situ and provide much-needed insights into these complex chemical pathways.
Scientists have found high levels of a previously unsuspected pollutant in homes, in an electronic waste recycling facility and in the natural environment. People are likely to be exposed to this pollutant by breathing contaminated dust or through skin contact.
Researchers have better unraveled the complex process of how black widow spiders transform proteins into steel-strength fibers. This knowledge promises to aid scientists in creating equally strong synthetic materials. Utilizing state-of-the-art techniques, the research team was able to more closely see inside the protein gland where the silk fibers originate, revealing a more complex, hierarchical protein assembly. The researchers' 'modified micelles theory' concludes that spider silk proteins start out as complex, compound micelles.
A catalyst for carbon dioxide recycling, Mineral pentlandite may also be a conceivable alternative to expensive precious metal catalysts. Pentlandite had previously been known as a catalyst for hydrogen production. By adding a suitable solvent, the researchers successfully utilised it to convert carbon dioxide into carbon monoxide. The latter is a common source material in the chemical industry.
Pancreatic cancer cells are known for their ability to thrive under extreme conditions of low nutrients and oxygen, a trait known in the cancer field as 'austerity.' The cells' remarkable resistance to starvation is one reason why pancreatic cancer is so deadly. Now researchers have identified a compound from a Congolese plant that has strong ''antiausterity'' potential, making pancreatic cancer cells susceptible to nutrient starvation.
An international team of researchers has transferred certain structural characteristics of natural enzymes, which ensure particularly high catalytic activity, to metallic nanoparticles. The desired chemical reaction thus did not take place at the particle surface as usual, but in channels inside the metal particles -- and with three times higher catalytic activity.
In a new article presents high-resolution images of photosystem II, the protein complex that splits water into hydrogen ions and oxygen during photosynthesis. The images will help researchers better understand this complex mechanism, possibly opening up the door to developing cheap and efficient solar fuel devices.
Researchers are working to develop a method to convert water and carbon dioxide to the renewable energy of the future, using the energy from the sun and graphene applied to the surface of cubic silicon carbide. They have now taken an important step towards this goal, and developed a method that makes it possible to produce graphene with several layers in a tightly controlled process.
Scientists who treasure hunt for interesting bacterial metabolites using the online tool antiSMASH now have the opportunity to use an antiSMASH database with pre-calculated results of nearly 25,000 bacterial genomes. This database will ease the discovery of antibiotics, pesticides, and anti-cancer drugs.
No matter if it's grandma's cookies or commercially produced rolls, pastry lovers expect their baked goods to have a certain 'golden brown' allure -- but only after baking. A white dough that changes hue during storage, however, can negatively affect the appearance and perception of the final baked product. Scientists report that they have now developed a natural way to prevent discoloration during storage.
Scientists have developed a machine-learning approach that can be combined with experiments to determine, in record time, the location of atoms in powdered solids. Their method can be applied to complex molecules containing thousands of atoms and could be of particular interest to the pharmaceutical industry.