Researchers have described a new technique to improve chemical stability of electrode materials which can extend the lifespan by employing a very little amount of metals. Using computational chemistry and experimental data, the team observed that local compressive states around the Sr atoms in a perovskite electrode lattice weakened the Sr-O bond strength, which in turn promote strontium segregation.
The chemical sector has a big role to play in tackling climate change and achieving EU energy targets. The wide scale use of existing and -- in particular -- emerging innovative energy technologies can bring big emissions savings to the sector.
In an advance that could push cheap, ubiquitous solar power closer to reality, researchers have found a way to coax electrons to travel much further than was previously thought possible in the materials often used for organic solar cells and other organic semiconductors.
A public database of more than 300 substances used to dye hair will help accelerate research and development work on more sustainable hair color. Researchers say computer modeling can save years of lab work and millions of dollars.
Researchers have devised a biochemically formulated patch of dissolvable microneedles for the treatment of type 2 diabetes. The biochemical formula of mineralized compounds in the patch responds to blood chemistry to manage glucose automatically. In a proof-of-concept study performed with mice, the researchers showed that the chemicals interact in the bloodstream to regulate blood sugar for days at a time.
Scientists have proposed a novel way to address the most important and fundamental challenge of organic chemistry, such as breaking a bond between carbon and hydrogen atoms to form new organic substances. They were the first to carry out “breaking” in water thanks to especially synthesized substances called arylbenziodoxaboroles. As a result, the scientists synthesized a number of novel phenolic substances that possess high biological and antioxidant activity. In the future, they can be used for drug creation.
Silver nanoparticles are being used in clothing for their anti-odor abilities but some of this silver comes off when the clothes are laundered. The wastewater from this process could end up in the environment, possibly harming aquatic life, so researchers have attempted to recover the silver. Now, one group reports that detergent chemistry plays a significant role in how much of this silver can be removed from laundry wastewater.
Researchers have converted methane into valuable chemicals. The reaction occurs under ambient conditions in a novel two-phase system. Chlorine radicals are generated by light irradiation in water solvent, while methane is dissolved in perfluorohexane. Methyl radicals then react with oxygen, producing industrially useful methanol and formic acid. This is the first aerobic oxidation of methane without using high temperature/pressure, and the concept could allow industry-scale reactions with reduced environmental impact.
Researchers have found that the transfer of triplet excitons from nanomaterials to molecules also creates a feedback mechanism that returns some energy to the nanocrystal, causing it to photoluminesce on long time scales. The mechanism can be adjusted to control the amount of energy transfer, which could be useful in optoelectronic applications.
A new article outlines a pioneering method of screening a person's diverse set of antibodies for rapid therapeutic discovery. Antibody proteins are an important part of the human immune system that specifically target foreign viruses and bacteria, and they have been the fastest-growing class of approved drugs in the past several decades.