Scientists have induced a two-dimensional material to cannibalize itself for atomic 'building blocks' from which stable structures formed. The findings provide insights that may improve design of 2-D materials for fast-charging energy-storage and electronic devices.
Emissions associated with oil and gas production are a significant source of greenhouse gases. A new analysis ranks countries by emission levels and identifies the major sources of emissions, a first step toward policy to regulate oil and gas production practices.
A combination of organoboron and radical chemistry generates unusual trans-selectivity in hydroboration of alkynes. The use of N-heterocyclic carbene boranes is key to the success of this chemical transformation. This study is expected to open the door to the development of new boron-containing materials.
Twenty years ago, researchers made the accidental discovery that BPA had leached out of plastic cages used to house female mice in the lab, causing an increase in chromosomally abnormal eggs. Now, the same team is back to report that the array of alternative bisphenols now used to replace BPA in BPA-free bottles, cups, cages, and other items appear to come with similar problems for their mice.
Fuel cells hold promise as a clean, renewable source of energy. But keeping them dry has long been a challenge, as they produce water during the process of converting hydrogen and oxygen into electricity. Now researchers say they may have found a solution: pre-treating the electrode -- a key component of fuel cells -- with ionized oxygen gas, or plasma.
Artificial polymers, like antibiotic peptides, need both hydrophobic and hydrophilic domains in their molecular structure to exert antibacterial activity. Now, researchers have synthesized a phosphonium polymer that challenges this view. Their polymer salt contained no hydrophobic alkyl chains but still acted as an extraordinarily efficient biocide. A re-evaluation of established strategies in antibiotics polymer research might be necessary.
Researchers have created an integrated framework to identify which neighborhoods would benefit most from green roofs -- and provide city officials with a strategic approach to ensure the best return on their investment to beat the heat.
Researchers have developed a system to accelerate the discovery of chemical compounds that inhibit an enzyme implicated in a number of cancers. The set of tools and methods, which the researchers used to test more than 16,000 compounds has now been detailed.
Engineers have created a new way to remove contaminants from storm water, potentially addressing the needs of water-stressed communities that are searching for ways to tap the abundant and yet underused source of fresh drinking water. The mineral-coated sand reacts with and destroys organic pollutants, providing a way to help purify storm water percolating into underground aquifers, creating a safe and local reservoir of drinking water for parched communities.
The production of ultra-thin 2D crystals is difficult. In the past, different techniques have yielded quite diverse results, but the reasons for this could not be accurately explained. Thanks to a new method it is now possible to observe the crystallization process directly under the electron microscope.
A new study reports that Volkswagen is not the only auto manufacturer to make diesel cars that produce vastly more emissions on the road than in laboratory tests. The study finds that in Europe, 10 major auto manufacturers produced diesel cars, sold between 2000 and 2015, that generate up to 16 times more emissions on the road than in regulatory tests.
Scientists have made a major breakthrough in chemical synthesis that now makes it possible to quickly and reliably modify the 3D structure of molecules used in drug discovery. The new method allows scientists to employ cross-coupling reactions to generate new compounds while controlling their 3D architecture.
Researchers have cleared one hurdle toward environmental cleanup of certain contaminants with a newly designed synthetic enzyme that reduces the compound sulfite to sulfide -- a notoriously complex multistep chemical reaction that has eluded chemists for years.
Insights from experiments designed to push chemical systems far from equilibrium allowed an international group of researchers to discover a new major source of formic acid over the Pacific and Indian oceans.